The Build-Up of the Hubble Sequence in the COSMOS Field (2009)
Oesch, P. A., Carollo, C. M., Feldmann, R., Hahn, O., Lilly, S. J., Sargent, M. T., ...
We use ~8,600 >5e10 Msol COSMOS galaxies to study how the morphological mix of massive ellipticals, bulge-dominated disks, intermediate-bulge disks, bulge-less disks and irregular galaxies evolves...
Properties and environment of Radio Emitting Galaxies in the VLA-zCOSMOS survey (2009)
Bardelli, S., Schinnerer, E., Smolcic, V., Zamorani, G., Zucca, E., Mignoli, M., ...
We investigate the properties and the environment of radio sources with optical counterpart from the combined VLA-COSMOS and zCOSMOS samples. The advantage of this sample is the availability of...
Spitzer 70 and 160 μm Observations of the COSMOS Field (2009)
Frayer, D. T., Sanders, D. B., Surace, J. A., Aussel, H., Salvato, M., Le Floc'h, E., ...
We present Spitzer 70 and 160 μm observations of the COSMOS Spitzer survey (S-COSMOS). The data processing techniques are discussed for the publicly released products consisting of images and source...
Caputi, K. I., Lilly, S. J., Aussel, H., Floc'h, E. Le, Sanders, D., Maier, C., ...
We have used the zCOSMOS-bright 10k sample to identify 3244 Spitzer/MIPS 24-micron-selected galaxies with 0.06< S(24um)< 0.50 mJy and I(AB)
Leauthaud, A., Finoguenov, A., Kneib, J. P., Taylor, J. E., Massey, R., Rhodes, J., ...
Measurements of X-ray scaling laws are critical for improving cosmological constraints derived with the halo mass function and for understanding the physical processes that govern the heating and...
Merloni, A., Bongiorno, A., Bolzonella, M., Brusa, M., Civano, F., Comastri, A., ...
(Abriged) We report on the measurement of the rest frame K-band luminosity and total stellar mass of the hosts of 89 broad line Active Galactic Nuclei detected in the zCOSMOS survey in the redshift...
The LABOCA Survey of the Extended Chandra Deep Field South (2009)
Weiss, A., Kovacs, A., Coppin, K., Greve, T. R., Walter, F., Smail, Ian, ...
We present a sensitive 870 micron survey of the Extended Chandra Deep Field South (ECDFS) using LABOCA on the APEX telescope. The LABOCA ECDFS Submillimetre Survey (LESS) covers the full 30' x 30'...
The Chandra survey of the COSMOS field II: source detection and photometry (2009)
Puccetti, S., Vignali, C., Cappelluti, N., Fiore, F., Zamorani, G., Aldcroft, T. L., ...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program, that covers the central contiguous ~0.92 deg^2 of the COSMOS field. C-COSMOS is the result of a complex tiling, with every...
McCracken, H. J., Capak, P., Salvato, M., Aussel, H., Thompson, D., Daddi, E., ...
(abridged) We present a new near-infrared survey covering the 2 deg sq COSMOS field. Combining our survey with Subaru B and z images we construct a deep, wide-field optical-infrared catalogue. At Ks
The evolution of the hard X-ray luminosity function of AGN (2009)
Aird, J., Nandra, K., Laird, E. S., Georgakakis, A., Ashby, M. L. N., Barmby, P., ...
We present new observational determinations of the evolution of the 2-10keV X-ray luminosity function (XLF) of AGN. We utilise data from a number of surveys including both the 2Ms Chandra Deep Fields...
Capak, P., Mobasher, B., Scoville, N. Z., McCracken, H., Ilbert, O., Salvato, M., ...
We present three bright z dropout candidates selected from deep Near-Infrared (NIR) imaging of the COSMOS 2 square degree field. All three objects match the 0.8-8um colors of other published z>7...
The nonlinear biasing of the 10k zCOSMOS galaxies up to z~1 (2009)
Kovac, K., Porciani, C., Lilly, S. J., Marinoni, C., Guzzo, L., Cucciati, O., ...
We use the overdensity field reconstructed in the volume of the COSMOS area to study the nonlinear biasing of the zCOSMOS galaxies. The galaxy overdensity field is reconstructed using the current...
Zucca, E., Bardelli, S., Bolzonella, M., Zamorani, G., Ilbert, O., Pozzetti, L., ...
(Abridged) We studied the evolution in the B band luminosity function to z~1 in the zCOSMOS 10k sample, for which both accurate galaxy classifications and a detailed description of the local density...
The Future of Direct Supermassive Black Hole Mass Estimates (2009)
Batcheldor, D., Koekemoer, A. M.
(Abridged) The repeated discovery of supermassive black holes (SMBHs) at the centers of galactic bulges, and the discovery of relations between the SMBH mass (M) and the properties of these bulges,...
Stellar and Total Baryon Mass Fractions in Groups and Clusters Since Redshift 1 (2009)
Giodini, S., Pierini, D., Finoguenov, A., Pratt, G. W., Boehringer, H., Leauthaud, A., ...
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a...
Automated ACS Bias and Dark Reference File Production, and Improved Detector Trend Analysis (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Ray A. Lucas, Mike Swam, Max Mutchler, ...
Abstract. In the past two years, the production of ACS bias and dark calibration reference files has become almost completely automated. Building upon some code and lessons learned from the automated...
Empirical PSFs and Distortion in the WFC Camera (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Jay Anderson
Abstract. This report summarizes two upcoming ISRs, one on empirical models of the WFC PSF and the other on the distortion solution. Before we can come up with an accurate distortion solution, we...
Recent Developments of the ACS Spectral Extraction Software aXe (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Jeremy R. Walsh, Martin Kümmel, Søren S. Larsen
Abstract. The software package aXe provides comprehensive spectral extraction facilities for all the slitless modes of the ACS, covering the Wide Field Channel (WFC) grism, the High Resolution...
STIS Calibration Enhancement: Wavelength Calibration and CTI (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, P. Bristow, F. Kerber, M. Rosa
Abstract. The Instrument Physical Modeling Group in the Space Telescope European Co-ordinating Facility has undertaken to examine aspects of STIS calibration and develop physical model based...
Characterization of Pt/Cr-Ne Hollow-Cathode Lamps for Wavelength Standards in Space Astronomy (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Gillian Nave, Joseph Reader, Craig J. Sansonetti, ...
cathode calibration lamps as used onboard the Hubble Space Telescope (HST). The project has two main components: First, we have observed the spectra of Pt/Cr-Ne lamps to obtain wavelengths for all...
ACS Charge Transfer Efficiency. Results from Internal and External Tests (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, M. Chiaberge, A. Riess, M. Mutchler, ...
Abstract. We present results of in-flight charge transfer efficiency (CTE) monitoring performed with different tests. Internal tests (Extended Pixel Edge Response [EPER] and First Pixel Response...
ACS Flat Field Update and New SBC L-flats (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, J. Mack, R. C. Bohlin, R. L. Gillil, ...
Abstract. We present an overview of the methods used to create the flat fields which are currently in use by the ACS calibration pipeline. L-flats for the SBC detector have recently been computed...
Memorandum of Understanding between NASA and ESA for the Hubble Space Telescope (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Florian Kerber, Paul Bristow, Michael R. Rosa
the STIS calibration enhancement (STIS-CE) effort as part of the extension of the
NICMOS Temperature Monitoring (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, T. Wiklind, T. Wheeler
Abstract. The NICMOS detectors are sensitive to the operating temperature. During the Cycle 7 era, NICMOS was cooled through cryogenic solid nitrogen. This resulted in an operating temperature...
Towards a Comprehensive Sensitivity Calibration of the STIS Echelle Modes (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Alessandra Aloisi
Abstract. I will present the state of the art of the final sensitivity calibration of the STIS spectroscopic echelle modes. This includes 1) the derivation of a new absolute sensitivity for all...
The New GSC-II and its Use for HST (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, B. Mclean
Abstract. The second generation HST Guide Star Catalog (GSC-II) provides a significant improvement over the original GSC-I. It provides ICRS-based positions (International Celestial Reference System)...
WFPC2 Status and Calibration (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, J. Biretta
Abstract. We briefly summarize the status of WFPC2 as of late 2005, and review calibration results from the last few years. 1.
WFC3 Calibration and Data Processing (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, H. Bushouse, S. Baggett, T. Brown, ...
Wide Field Camera 3 (WFC3), a panchromatic imager being developed for the Hubble Space Telescope (HST), is now fully integrated and over the past year has completed first rounds of extensive ground...
Geometric Distortions for the HST MAMA Detectors: STIS NUV-MAMA + FUV-MAMA and ACS SBC (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, J. Maíz Apellániz, Maíz Apellániz
Abstract. I present the current status of the geometric distortions for the imaging modes of the three current HST MAMA detectors. A solution for the STIS NUV-MAMA with a typical accuracy of 10 mas...
The 2005 HST Calibration Workshop (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, E. A. Barker, A. M. Koekemoer, V. Laidler
Abstract. A general concern with NICMOS images is the issue of “persistence”, or residual charge from bright sources and cosmic rays that remains trapped in pixels and is gradually released...
The 2005 HST Calibration Workshop (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, E. Nelan
Abstract. The Fine Guidance Sensor 1R on board HST is used by observers as a science instrument for state of the art relative astrometry and for the high angular resolution of close binary systems....
The 2005 HST Calibration Workshop Space Telescope Science Institute, 2005 (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Paul Goudfrooij, Ralph C. Bohlin, Jesús Maíz-apellániz
Abstract. We review the on-orbit spectroscopic observations that are being used to characterize the Charge Transfer Efficiency (CTE) of the STIS CCD in spectroscopic mode. We parametrize the...
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, K. Sembach, M. Sirianni, S. Arribas, ...
Abstract. The Hubble Space Telescope is now operating with an attitude control system that relies upon inputs from two mechanical gas bearing gyroscopes and the Fine Guidance Sensors to provide fine...
Modeling and Correcting the Time-Dependent ACS PSF (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Jason Rhodes, Richard Massey, Justin Albert, ...
Abstract. The ability to accurately measure the shapes of faint objects in images taken with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope (HST) depends upon detailed knowledge...
Hot Pixels Growth in ACS CCDs (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, M. Sirianni, M. Mutchler, R. Lucas
Abstract. We present an analysis of the hot pixel population in ACS CCDs. The number of hot pixels increases due to on-orbit radiation damage. In order to heal the defects responsible for the hot...
The HST/STIS Next Generation Spectral Library (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, M. D. Gregg, D. Silva, J. Rayner, ...
G750L spectra of 378 bright stars covering a wide range in abundance, effective temperature, and luminosity. This HST/STIS Next Generation Spectral Library was scheduled to reach its goal of 600...
Improving the Absolute Astrometry of HST Data with GSC-II (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, A. M. Koekemoer, B. Mclean, M. Mcmaster, ...
Abstract. We have used the new GSC-II to significantly improve the absolute astrometric accuracy of a large number of ACS datasets from the first years of ACS operations, reducing the initial levels...
Calibration and Interpretation of STIS Imaging Mode Fluxes (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Charles R. Proffitt
Abstract. While primarily a spectroscopic instrument, STIS also had a number of imaging modes, many of which provided unique capabilities. However, most of the STIS imaging modes also had very wide...
The Optical Field Angle Distortion Calibration of HST Fine Guidance Sensors 1R and 3 (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, B. Mcarthur, G. F. Benedict, W. H. Jefferys, ...
Abstract. To date five OFAD (Optical Field Angle Distortion) calibrations have been performed with a star field in M35, four on FGS3 and one on FGS1, all analyzed by the Astrometry Science Team. We...
Spectral Extraction of Extended Sources Using Wavelet Interpolation (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Paul Barrett, Linda L. Dressel
Abstract. Spatially-resolved spectroscopic investigations of extended sources using STIS, such as galactic black hole mass measurements and chemistry in spatially resolved structures around Eta...
Spectroscopic Point Spread Functions for Centered and Offset Targets (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Linda Dressel
Abstract. Finely sampled observational spectroscopic point spread functions (PSFs) have been generated from exposures of stars. Lyot stops near the pupil plane of the STIS G430L and G750L gratings...
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Santiago Arribas, Elizabeth Barker, ...
Abstract. We provide an overview of the most important calibration aspects of the NICMOS instrument on board of HST. We describe the performance of the instrument after the installation of the NICMOS...
HST Temporal Optical Behavior: Models and Measurements with (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, R. B. Makidon, M. Lallo
Abstract. While HST provides a stable stellar image relative to ground-based observatories, it features its own characteristic changes in the PSF it delivers to the Science Instruments (Lallo et al....
Slitless Spectroscopy with the Advanced Camera for Surveys (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, M. Kümmel, S. S. Larsen, J. R. Walsh
Abstract. The Advanced Camera for Surveys (ACS) enables slitless, low-resolution spectroscopic imaging in its three channels. The most-used modes are grism imaging with the WFC and the HRC at a...
Improving the Rectification of Spectral Images (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Linda Dressel, Paul Barrett, Paul Goudfrooij, ...
Abstract. Single rows in STIS rectified spectral images are being analyzed in science programs where the highest obtainable spatial resolution is needed. Here we discuss two problems that have...
The 2005 HST Calibration Workshop Space Telescope Science Institute, 2005 (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Santiago Arribas, L. Eddie Bergeron, Roelof De Jong, ...
and 12 (regular) calibration programs executed after the installation of the NICMOS Cooling System (NCS). The special calibrations on Cycle 13 were focussed on a follow up of the spectroscopic...
The STIS NUV-MAMA Objective Prism and Looking Beyond for HST UV Slitless Spectroscopy (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, J. Maíz Apellániz
Abstract. I discuss the recently implemented absolute flux calibration for the STIS objective prism, which yields fluxes accurate to 1 % rms in the 1300-3000 ˚A range relative to the fluxes measured...
The 2005 HST Calibration Workshop (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, James E. Rhoads
in the next decade. Optimum science return on JWST will require high quality calibration. The Hubble Space Telescope offers unique capabilities that will be essential in achieving such a calibration...
Multidrizzle and Tweakshifts: Overview and Future Plans (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, A. M. Koekemoer, A. S. Fruchter, R. N. Hook, ...
Abstract. The MultiDrizzle software provides a flexible, unified interface to the various steps involved in registering, cleaning and combining dithered HST data. MultiDrizzle can be run on ACS,...
NICMOS Calibration Challenges in the Ultra Deep Field (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Rodger I. Thompson
Abstract. The reduction of NICMOS observations in the Hubble Ultra Deep Field required unique reduction and calibration techniques, not required for images containing brighter sources. This paper...
Band-limited Imaging with Undersampled Detectors (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Andrew S. Fruchter
Abstract. Over the past decade “Drizzle ” has become a de facto standard for the combination of HST images. However, the drizzle algorithm was developed with small, faint, partially-resolved...
The 2005 HST Calibration Workshop Space Telescope Science Institute, 2005 (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Ronald L. Gilliland
Abstract. Transiting extrasolar planets present an opportunity for probing atmospheric conditions and constituents by taking advantage of different apparent radii, hence transit depth as a function...
A Recalibration of Optical Photometry Based on STIS Spectrophotometry (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, J. Maíz Apellániz
Abstract. I use STIS spectrophotometry to test the published sensitivity curves P(λ) and calculate the zero points ZPP for three optical photometry systems: Tycho-2 BTVT, Strömgren uvby, and...
The 2005 HST Calibration Workshop (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, A Critical, Test Nicmos Photometry, Bahram Mobasher, ...
Abstract. We compared photometry for the same sources as measured by NIC-MOS and ground-based ISAAC detectors over a large dynamic range. Over a range of magnitudes from 8- 25, we find a linear...
Calibration Status of the Advanced Camera for Surveys (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, K. Sembach
Abstract. The Advanced Camera for Surveys is producing spectacular science results that require careful instrument calibration. This article provides an overview of recent calibration highlights and...
Improvements to the STIS First Order Spectroscopic Point Source Flux Calibration (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Charles R. Proffitt
Abstract. During the operational lifetime of STIS, the primary emphasis of throughput measurements was the accurate determination of broad band point source fluxes observed using the low dispersion...
Calibration of the ACS Emission-Line Filters (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, C. R. O’dell
Abstract. On-orbit calibration of the ACS emission-line filters F502N, F658N, and F660N have been made using a bright portion of the Orion Nebula as a reference source. This calibration is important...
Calibration of ACS Prism Slitless Spectroscopy Modes (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, S. S. Larsen, M. Kümmel, J. R. Walsh
Abstract. The Advanced Camera for Surveys is equipped with three prisms in the Solar Blind (SBC) and High Resolution (HRC) Channels, which together cover the 1150 – 3500 ˚A range, albeit at highly...
The Two-Gyro Pointing Stability of HST, Measured with ACS (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, A. M. Koekemoer, V. Kozhurina-platais, M. Sirianni, ...
Abstract. We present the results of the pointing stability tests for HST, as measured with the ACS/HRC during the two-gyro test program conducted in February 2005 and the validation tests performed...
The 2005 HST Calibration Workshop (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, John C. Martin, Kris Davidson
listed in the Acknowledgments Abstract. The HST Eta Carinae Treasury Project made extensive use of the HST/STIS from 1998 to the time of its failure in 2004. As one of the most prolific users of that...
Selection and Characterization of Interesting Grism Spectra (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Gerhardt R. Meurer
Abstract. Observations with the ACS Wide Field Camera and G800L grism can produce thousands of spectra within a single WFC field producing a potentially rich treasure trove of information. However,...
Some Neglected Pixel Problems (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Kris Davidson
Abstract. We have developed several improved techniques because standard reduction software was inadequate for the Treasury Project on η Carinae. Though adapted specifically to HST/STIS/CCD data,...
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Paul Goudfrooij, Ra Aloisi, ...
Abstract. The huge archive of STIS observations constitutes a unique —and arguably the most comprehensive — source of spectroscopy in the UV and spatiallyresolved spectroscopy in the optical...
Calibration Status and Results for Wide Field Camera 3 (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Randy A. Kimble
Abstract. Wide Field Camera 3 (WFC3) is a general-purpose imager in development for installation in HST Servicing Mission 4 (SM4). Covering the wavelength range of 200-1700 nm in two observing...
Improving the Spectral Resolution of HST Spectra via LSF Replacement (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Steven V. Penton
Abstract. Large aperture spectra provide greater signal, but small aperture spectra have higher resolution (smaller line-spread function (LSF) wings). The simple method presented here can convert...
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Max Mutchler, Marco Sirianni, Ray A. Lucas
Abstract. Our strategies for collecting ACS calibration data, and converting it into reference files for use in the calibration pipeline, have been continually evolving since the instrument was...
QSO Coronagraphy and Ramp Imaging in the ACS GTO Programs (2009)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, A. R. Martel, H. C. Ford, G. D. Illingworth, ...
Abstract. We briefly discuss the processing and reduction steps of imaging data acquired in two minor modes of ACS as part of the ACS GTO programs: HRC coronagraphy of the luminous quasar 3C 273 and...
High-redshift elliptical galaxies: are they (all) really compact? (2009)
Mancini, C., Daddi, E., Renzini, A., Salmi, F., McCracken, H. J., Cimatti, A., ...
We investigate the properties of 12 ultra-massive passively evolving early type galaxies (ETGs) at z_phot>1.4 in the COSMOS 2 deg^2 field. These 12 ETGs were selected as pBzKs, have accurate 1.4
Galaxies at z = 6 - 9 from the WFC3/IR imaging of the HUDF (2009)
McLure, R. J., Dunlop, J. S., Cirasuolo, M., Koekemoer, A. M., Sabbi, E., Stark, D. P., ...
We present the results of a systematic search for galaxies in the redshift range z = 6 - 9, within the new, deep, near-infrared imaging of the Hubble Ultra Deep Field provided by the Wide Field...
The 10k zCOSMOS: morphological transformation of galaxies in the group environment since z~1 (2009)
Kovac, K., Lilly, S. J., Knobel, C., Bolzonella, M., Iovino, A., Carollo, C. M., ...
We study the evolution of galaxies inside and outside of the group environment since z=1 using a large well defined set of groups and galaxies from the zCOSMOS-bright redshift survey in the COSMOS...
The zCOSMOS Redshift Survey: How group environment alters global downsizing trends (2009)
Iovino, A., Cucciati, O., Scodeggio, M., Knobel, C., Kovac, K., Lilly, S., ...
We took advantage of the wealth of information provided by the first ~10000 galaxies of the zCOSMOS-bright survey and its group catalogue to study the complex interplay between group environment and...
Vergani, D., Zamorani, G., Lilly, S. J., Lamareille, F., Halliday, C., Scodeggio, M., ...
The identities of the main processes triggering and quenching star-formation in galaxies remain unclear. A key stage in evolution, however, appears to be represented by post-starburst galaxies. To...
Haberzettl, L., Williger, G. M., Lauroesch, J. T., Haines, C. P., Valls-Gabaud, D., Harris, K. A., ...
The nature of galaxy structures on large scales is a key observational prediction for current models of galaxy formation. The Sloan Digital Sky Survey (SDSS) and the 2dF galaxy survey have revealed a...
Ideue, Y., Nagao, T., Taniguchi, Y., Shioya, Y., Saito, T., Murayama, T., ...
We investigate the relation between the star formation activity in galaxies and environment at z ≃ 1.2 in the Cosmic Evolution Survey field, using the fraction of [O II] emitters and the local...
COSMOS 5921+0638: Characterization and analysis of a new strong gravitationally lensed AGN (2009)
Anguita, T., Faure, C., Wambsganss, J., Knobel, C., Koekemoer, A. M., ...
[abridged] We present VLT/FORS1 spectroscopic follow-up observations and HST/WFPC2 imaging of the system COSMOS 5921+0638, which shows quadruply lensed images and a perfect Einstein ring. With the...
Bolzonella, M., Kovac, K., Pozzetti, L., Zucca, E., Cucciati, O., Lilly, S. J., ...
We study the impact of the environment on the evolution of galaxies in the zCOSMOS 10k sample in the redshift range 0.1
The Clowes-Campusano Large Quasar Group Survey: I. GALEX selected sample of LBGs at z$\sim$1 (2009)
Haberzettl, L., Williger, G. M., Lauroesch, J. T., Haines, C. P., Valls-Gabaud, D., Harris, K. A., ...
The nature of galaxy structures on large scales is a key observational prediction for current models of galaxy formation. The SDSS and 2dF galaxy surveys have revealed a number of structures on...
Star Formation and Dust Obscuration at z ≈ 2: Galaxies at the Dawn of Downsizing (2009)
Pannella, M., Carilli, C. L., Daddi, E., McCracken, H. J., Owen, F. N., Renzini, A., ...
We present first results of a study aimed to constrain the star formation rate (SFR) and dust content of galaxies at z ≈ 2. We use a sample of BzK-selected star-forming galaxies, drawn from the...
The zCOSMOS Survey. The dependence of clustering on luminosity and stellar mass at z=0.2-1 (2009)
Meneux, B., Guzzo, L., Porciani, C., Zamorani, G., Abbas, U., ...
We study the dependence of galaxy clustering on luminosity and stellar mass at redshifts z ~ [0.2-1] using the first zCOSMOS 10K sample. We measure the redshift-space correlation functions xi(rp,pi)...
Environmental Effects on the Star Formation Activity in Galaxies at z=1.2 in the COSMOS Field (2009)
Ideue, Y., Nagao, T., Taniguchi, Y., Shioya, Y., Saito, T., Murayama, T., ...
We investigate the relation between the star-formation activity in galaxies and environment at z=1.2 in the COSMOS field, using the fraction of [OII] emitters and the local galaxy density. The...
Star formation and dust obscuration at z~2: galaxies at the dawn of downsizing (2009)
Pannella, M., Carilli, C. L., Daddi, E., Cracken, H. J. Mc, Owen, F. N., Renzini, A., ...
We present first results of a study aimed to constrain the star formation rate and dust content of galaxies at z~2. We use a sample of BzK-selected star-forming galaxies, drawn from the COSMOS...
Cosmic Evolution of Radio Selected Active Galactic Nuclei in the Cosmos Field (2009)
Smolčić, V., Zamorani, G., Schinnerer, E., Bardelli, S., Bondi, M., Bîrzan, L., ...
We explore the cosmic evolution of radio luminous active galactic nuclei (AGNs) with low radio powers (L_(1.4 GHz) ≾ 5 × 10^(25) W Hz^(–1)) out to z = 1.3 using to date the largest sample of...
Coppin, K. E. K., Smail, Ian, Alexander, D. M., Weiss, A., Walter, F., Swinbank, A. M., ...
We report on the identification of the highest redshift submillimetre-selected source currently known LESS J033229.4−275619. This source was detected in the Large Apex Bolometer Camera (LABOCA)...
Georgakakis, A., Coil, A. L., Laird, E. S., Griffith, R. L., Nandra, K., Lotz, J. M., ...
We use morphological information of X-ray selected AGN hosts to set limits on the fraction of the accretion density of the Universe at z~1 that is not likely to be associated with major mergers. Deep...
Stellar and total baryon mass fractions in groups and clusters since redshift 1 (2009)
Giodini, S., Pierini, D., Finoguenov, A., Pratt, G. W., Boehringer, H., Leauthaud, A., ...
We investigate if the discrepancy between estimates of the total baryon mass fraction obtained from observations of the cosmic microwave background (CMB) and of galaxy groups/clusters persists when a...
Maier, C., Lilly, S. J., Zamorani, G., Scodeggio, M., Lamareille, F., Contini, T., ...
In order to try to understand the internal evolution of galaxies and relate this to the global evolution of the galaxy population, we present a comparative study of the dependence of star formation...
Greve, T. R., Weiss, A., Walter, F., Smail, I., Zheng, X. Z., Knudsen, K. K., ...
Using the 330hr ESO-MPG 870-micron survey of the Extended Chandra Deep Field South (ECDF-S) obtained with the Large Apex BOlometer CAmera (LABOCA) on the Atacama Pathfinder EXperiment (APEX), we have...
The density field of the 10k zCOSMOS galaxies (2009)
Kovac, K., Lilly, S. J., Cucciati, O., Porciani, C., Iovino, A., Zamorani, G., ...
We use the current sample of ~10,000 zCOSMOS spectra of sources selected with I(AB) < 22.5 to define the density field out to z~1, with much greater resolution in the radial dimension than has been...
An optical group catalogue to z = 1 from the zCOSMOS 10k sample (2009)
Knobel, C., Lilly, S. J., Iovino, A., Porciani, C., Kovac, K., Cucciati, O., ...
We present a galaxy group catalogue spanning the redshift range 0.1
The Growth of Supermassive Black Holes Across Cosmic Time (2009)
Nandra, K., Aird, J. A., Alexander, D. M., Ballantyne, D. R., Barcons, X., Bauer, F. E., ...
One of the main themes in extragalactic astronomy for the next decade will be the evolution of galaxies over cosmic time. Many future observatories, including JWST, ALMA, GMT, TMT and E-ELT will...
Spitzer 70 and 160-micron Observations of the COSMOS Field (2009)
Frayer, D. T., Sanders, D. B., Surace, J. A., Aussel, H., Salvato, M., Floc'h, E. Le, ...
We present Spitzer 70 and 160 micron observations of the COSMOS Spitzer survey (S-COSMOS). The data processing techniques are discussed for the publicly released products consisting of images and...
The XMM-Newton wide-field survey in the COSMOS field - The point-like X-ray source catalogue (2009)
Cappelluti, N., Brusa, M., Hasinger, G., Comastri, A., Zamorani, G., Finoguenov, A., ...
Context. The COSMOS survey is a multiwavelength survey aimed to study the evolution of galaxies, AGN and large scale structures. Within this survey XMM-COSMOS a powerful tool to detect AGN and galaxy...
Cosmic evolution of radio selected active galactic nuclei in the COSMOS field (2009)
Smolcic, V., Zamorani, G., Schinnerer, E., Bardelli, S., Bondi, M., Birzan, L., ...
We explore the cosmic evolution of radio AGN with low radio powers (L_1.4GHz < 5\times10^25 W/Hz) out to z=1.3 using to-date the largest sample of ~600 low luminosity radio AGN at intermediate...
Active Galactic Nucleus Host Galaxy Morphologies in COSMOS (2009)
Gabor, J. M., Impey, C. D., Jahnke, K., Simmons, B. D., Trump, J. R., Koekemoer, A. M., ...
We use Hubble Space Telescope/Advanced Camera for Surveys images and a photometric catalog of the Cosmic Evolution Survey (COSMOS) field to analyze morphologies of the host galaxies of ~400 active...
The XMM-Newton wide-field survey in the COSMOS field. The point-like X-ray source catalogue (2009)
Cappelluti, N., Brusa, M., Hasinger, G., Comastri, A., Zamorani, G., Finoguenov, A., ...
The COSMOS survey is a multiwavelength survey aimed to study the evolution of galaxies, AGN and the large scale structure. The XMM-COSMOS is a deep X-ray survey over the full 2 deg2 of the COSMOS...
Active galactic nucleus host galaxy morphologies in COSMOS (2009)
Gabor, J. M., Impey, C. D., Jahnke, K., Simmons, B. D., Trump, J. R., Koekemoer, A. M., ...
An optical group catalog to z = 1 from the zCOSMOS 10 k sample (2009)
Knobel, C., Lilly, S. J., Iovino, A., Porciani, C., Kovac, K., Cucciati, O., ...
The XMM-Newton wide-field survey in the COSMOS field The point-like X-ray source catalogue (2009)
Cappelluti, N., Brusa, M., Hasinger, G., Comastri, A., Zamorani, G., Finoguenov, A., ...
Cosmic evolution of radio selected active galactic nuclei in the cosmos field (2009)
Smolcic, V., Zamorani, G., Schinnerer, E., Bardelli, S., Bondi, M., Birzan, L., ...
Stellar and Total Baryon Mass Fractions in Groups and Clusters since Redshift 1 (2009)
Giodini, S., Pierini, D., Finoguenov, A., Pratt, G. W., Boehringer, H., Leauthaud, A., ...
The Chandra COSMOS Survey. I. Overview and Point Source Catalog (2009)
Elvis, M., Civano, F., Vignali, C., Puccetti, S., Fiore, F., Cappelluti, N., ...
Stellar and total baryon mass fractions in groups and clusters since redshift 1 (2009)
Giodini, S., Pierini, D., Finoguenov, A., Pratt, G. W., Böhringer, H., Leauthaud, A., ...
AGN Host Galaxy Morphologies in COSMOS (2008)
Gabor, J. M., Impey, C. D., Jahnke, K., Simmons, B. D., Trump, J. R., Koekemoer, A. M., ...
We use HST/ACS images and a photometric catalog of the COSMOS field to analyze morphologies of the host galaxies of approximately 400 AGN candidates at redshifts 0.3 < z < 1.0. We compare the AGN...
The UDF05 Follow-up of the HUDF: II. Constraints on Reionization from z-dropout Galaxies (2008)
Oesch, P. A., Carollo, C. M., Stiavelli, M., Trenti, M., Bergeron, L. E., Koekemoer, A. M., ...
[Abridged] We detect three (plus one less certain) z-dropout sources in two separate fields of our UDF05 HST NICMOS images. These z~7 Lyman-Break Galaxy (LBG) candidates allow us to constrain the...
The 2005 HST Calibration Workshop (2008)
A. M. Koekemoer, P. Goudfrooij, L. L. Dressel, Polarimetry Nicmos, Dean C. Hines, Glenn Schneider
Abstract. NICMOS cameras 1 and 2 (with ∼ 43 and ∼ 76 mas/pixel, respectively) each carry a set of three polarizing elements to provide high sensitivity observations of linearly polarized light....
C. P. O'dea, A. M. Koekemoer, S. A. Baum, J. Mack
Presentamos espectros de rendija larga de HST/STIS de nebulas de emision alineadas en 3 radiofuentes campactas de espectro empinado (ingles: Compact Steep Spectrum Sources, CSS). Encontramos...
The extended Chandra deep field-south survey : Chandra point-source catalogs. (2007)
Lehmer, B. D., Brandt, W. N., Alexander, D. M., Bauer, F. E., Schneider, D. P., Tozzi, P., ...
We present Chandra point‐source catalogs for the Extended Chandra Deep Field–South (E‐CDF‐S) survey. The E‐CDF‐S consists of four contiguous 250 ks Chandra observations covering an...
Lehmer, B. D., Brandt, W. N., Hornschemeier, A. E., Alexander, D. M., Bauer, F. E., Koekemoer, A. M., ...
We analyze a population of intermediate-redshift (z~0.05-0.3) off-nuclear X-ray sources located within optically bright galaxies in the Great Observatories Origins Deep Survey and Galaxy Evolution...
X-ray properties of Lyman Break galaxies in the Great Observatories Origins Deep Survey. (2007)
Lehmer, B. D., Brandt, W. N., Alexander, D. M., Bauer, F. E., Conselice, C. J., Dickinson, M. E., ...
We constrain the X-ray emission properties of Lyman break galaxies (LBGs) at z 3–6 using the 2 Ms Chandra Deep Field North and 1 Ms Chandra Deep Field South. Large samples of LBGs were discovered...
Silverman, J. D., Mainieri, V., Lehmer, B. D., Alexander, D. M., Bauer, F. E., Bergeron, J., ...
We present an analysis of 109 moderate-luminosity (41.9 < Log L{0.5-8.0 keV} < 43.7) AGN in the Extended Chandra Deep Field-South survey, which is drawn from 5,549 galaxies from the COMBO-17 and GEMS...
Zamojski, M. A., Schiminovich, D., Rich , R. M., Mobasher, B., Koekemoer, A. M., Capak, P., ...
We present a study of the morphological nature of redshift z ~ 0.7 star-forming galaxies using a combination of HST ACS, GALEX, and ground-based images of the COSMOS field. Our sample consists of...
Oesch, P. A., Stiavelli, M., Carollo, C. M., Bergeron, L. E., Koekemoer, A. M., Lucas, R. A., ...
We present the UDF05 project, a HST Large Program of deep ACS (F606W, F775W, F850LP) and NICMOS (F110W, F160W) imaging of three fields, two of which coincide with the NICP1-4 NICMOS parallel...
The All-Wavelength Extended Groth Strip International Survey (AEGIS) Data Sets (2007)
Davis, M., Guhathakurta, P., Konidaris, N. P., Newman, J. A., Ashby, M. L. N., Biggs, A. D., ...
In this the first of a series of Letters, we present a panchromatic data set in the Extended Groth Strip region of the sky. Our survey, the All-Wavelength Extended Groth Strip International Survey...
Koekemoer, A. M., Aussel, H., Calzetti, D., Capak, P., Giavalisco, M., ...
We describe the details of the Hubble Space Telescope (HST) Advanced Camera for Surveys / Wide Field Channel (ACS/WFC) observations of the COSMOS field, including the data calibration and processing...
Zamojski, M. A., Schiminovich, D., Rich, R. M., Mobasher, B., Koekemoer, A. M., Capak, P., ...
We present a study of the morphological nature of redshift z~0.7 star-forming galaxies using a combination of HST/ACS, GALEX and ground-based images of the COSMOS field. Our sample consists of 8,146...
Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements (2007)
Leauthaud, A., Massey, R., Kneib, J. P., Rhodes, J., Johnston, D. E., Capak, P., ...
With a primary goal of conducting precision weak lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by the Hubble Space Telescope (HST) to date using...
Rovilos, E., Georgakakis, A., Georgantopoulos, I., Afonso, J., Koekemoer, A. M., Mobasher, B., ...
We explore the nature of the radio emission of X-ray selected AGN by combining deep radio (1.4GHz; 60micro-Jy) and X-ray data with multiwavelength (optical, mid-infrared) observations in the Extended...
Weak Gravitational Lensing with COSMOS: Galaxy Selection and Shape Measurements (2007)
Leauthaud, A., Massey, R., Kneib, J. P., Rhodes, J., Johnston, D. E., Capak, P., ...
With a primary goal of conducting precision weak lensing measurements from space, the COSMOS survey has imaged the largest contiguous area observed by the Hubble Space Telescope (HST) to date using...
The VLA-COSMOS Survey: II. Source Catalog of the Large Project (2007)
Schinnerer, E., Smolcic, V., Carilli, C. L., Bondi, M., Ciliegi, P., Jahnke, K., ...
The VLA-COSMOS large project is described and its scientific objective is discussed. We present a catalog of ~ 3,600 radio sources found in the 2deg^2 COSMOS field at 1.4 GHz. The observations in the...
Finoguenov, A., Guzzo, L., Hasinger, G., Scoville, N. Z., Aussel, H., Boehringer, H., ...
We present the results of a search for galaxy clusters in the first 36 XMM-Newton pointings on the COSMOS field. We reach a depth for a total cluster flux in the 0.5-2 keV band of 3x10-15 ergs cm-2...
Zamojski, M. A., Schiminovich, D., Rich, R. M., Mobasher, B., Koekemoer, A. M., Capak, P., ...
We present a study of the morphological nature of redshift z~0.7 star-forming galaxies using a combination of HST/ACS, GALEX and ground-based images of the COSMOS field. Our sample consists of 8,146...
The VLA-COSMOS Survey. II. Source catalog of the large project (2007)
Schinnerer, E., Smolcic, V., Carilli, C. L., Bondi, M., Ciliegi, P., Jahnke, K., ...
The VLA-COSMOS Large Project is described and its scientific objective is discussed. We present a catalog of ~3600 radio sources found in the 2 deg2 COSMOS field at 1.4 GHz. The observations in the...
Oesch, P. A., Stiavelli, M., Carollo, C. M., Bergeron, L. E., Koekemoer, A. M., Lucas, R. A., ...
We present the UDF05 HST program, which consists of three disjoint fields-NICP12, NICP34, plus the HUDF-with deep ACS (F606W, F775W, and F850LP) and NICMOS (F110W and F160W) imaging. Here we use the...
Finoguenov, A., Guzzo, L., Hasinger, G., Scoville, N. Z., Aussel, H., Böhringer, H., ...
We present the results of a search for galaxy clusters in the first 36 XMM-Newton pointings on the Cosmic Evolution Survey (COSMOS) field. We reach a depth for a total cluster flux in the 0.5-2 keV...
M. A. Zamojski, D. Schiminovich, R. M. Rich, B. Mobasher, A. M. Koekemoer, P. Capak, ...
We present a study of the morphological nature of redshift z ∼ 0.7 star-forming galaxies using a combination of HST/ACS, GALEX and ground-based images of the COSMOS field. Our sample consists of...
Finoguenov, A., Guzzo, L., Hasinger, G., Scoville, N. Z., Aussel, H., Boehringer, H., ...
We present the results of a search for galaxy clusters in the first 36 XMM-Newton pointings on the COSMOS field. We reach a depth for a total cluster flux in the 0.5-2 keV band of 3x10-15 ergs cm-2...
The VLA-COSMOS Survey: II. Source Catalog of the Large Project (2006)
Schinnerer, E., Smolcic, V., Carilli, C. L., Bondi, M., Ciliegi, P., Jahnke, K., ...
The VLA-COSMOS large project is described and its scientific objective is discussed. We present a catalog of ~ 3,600 radio sources found in the 2deg^2 COSMOS field at 1.4 GHz. The observations in the...
The All-Wavelength Extended Groth Strip International Survey (AEGIS) Data Sets (2006)
Davis, M., Guhathakurta, P., Konidaris, N.P., Newman, J.A., Ashby, M.L.N., Biggs, A.D., ...
The evolution of the number density of large disk galaxies in COSMOS (2006)
Sargent, M. T., Carollo, C. M., Lilly, S. J., Scarlata, C., Feldmann, R., Kampczyk, P., ...
We study a sample of approximately 16,500 galaxies with I_AB 7 kpc) decreases by a factor of about two out to z~1. (iii) There is a constancy in the number density of large bulgeless disks out to...
Wilson, G., Huang, J. S., Fazio, G. G., Yan, R., Koekemoer, A. M., Salim, S., ...
We study 87 Extremely Red Objects (EROs), selected both to have color redder than R-[3.6] = 4.0, and to have confirmed spectroscopic redshifts. Together, these two constraints result in this sample...
AEGIS: Host Galaxy Morphologies of X-ray and Infrared-selected AGN at 0.2 < z < 1.2 (2006)
Pierce, C. M., Lotz, J. M., Laird, E. S., Lin, L., Nandra, K., Primack, J. R., ...
We visually and quantitatively determine the host galaxy morphologies of 94 intermediate redshift (0.2 < z < 1.2) active galactic nuclei (AGN), selected using Chandra X-ray and Spitzer mid-infrared...
Jet-cloud interactions in compact radio sources (2006)
C. R. O`Dell, A. M. Koekemoer, S. A. Baum, J. Mack
Jet-cloud interactions in compact radio sources
The VLA-COSMOS Survey: I. Radio Identifications from the Pilot Project (2006)
Schinnerer, E., Carilli, C. L., Scoville, N. Z., Bondi, M., Ciliegi, P., Vettolani, P., ...
We present a catalog of 246 radio sources found in the central 1 degree of the COSMOS field at 1.4GHz. The VLA pilot project data have a resolution of 1.9"x1.6" and an rms noise limit of...
Steffen, A. T., Strateva, I., Brandt, W. N., Alexander, D. M., Koekemoer, A. M., Lehmer, B. D., ...
We present partial-correlation analyses that examine the strengths of the relationships between L_UV, L_X, Alpha_OX, and redshift for optically-selected AGNs. We extend the work of Strateva et al....
Lehmer, B. D., Brandt, W. N., Hornschemeier, A. E., Alexander, D. M., Bauer, F. E., Koekemoer, A. M., ...
We analyze a population of intermediate-redshift (z ~ 0.05-0.3), off-nuclear X-ray sources located within optically-bright galaxies in the Great Observatories Origins Deep Survey (GOODS) and Galaxy...
Did Galaxy Assembly and Supermassive Black-Hole Growth go hand-in-hand? (2006)
Windhorst, R. A., Cohen, S. H., Straughn, A. N., Ryan Jr., R. E., Hathi, N. P., Jansen, R. A., ...
In this paper, we address whether the growth of supermassive black-holes has kept pace with the process of galaxy assembly. For this purpose, we first searched the Hubble Ultra Deep Field (HUDF) for...
Clues to AGN Growth from Optically Variable Objects in the Hubble Ultra Deep Field (2005)
Cohen, S. H., Ryan Jr, R. E., Straughn, A. N., Hathi, N. P., Windhorst, R. A., Koekemoer, A. M., ...
We present a photometric search for objects with point-source components that are optically variable on timescales of weeks--months in the Hubble Ultra Deep Field (HUDF) to i'(AB)=28.0 mag. The data...
Morphology and evolution of emission line galaxies in the Hubble Ultra Deep Field (2005)
Pirzkal, N., Xu, C., Ferreras, I., Malhotra, S., Mobasher, B., Rhoads, J., ...
We investigate the properties and evolution of a sample of galaxies selected to have prominent emission lines in low-resolution grism spectra of the Hubble Ultra Deep Field (HUDF). These objects,...
The supermassive black hole in Centaurus A: a benchmark for gas kinematical measurements (2005)
Marconi, A., Pastorini, G., Pacini, F., Axon, D. J., Capetti, A., Macchetto, D., ...
We present new HST/STIS observations of Centaurus A. [SIII] 9533A was used to study the kinematics in the nuclear region with a 0.1" spatial resolution. The STIS data and the VLT/ISAAC spectra by...
AGN Host Galaxies at z~0.4-1.3 : Bulge-dominated and Lacking Merger-AGN Connection (2005)
Grogin, N. A., Conselice, C. J., Chatzichristou, E., Alexander, D. M., Bauer, F. E., Hornschemeier, A. E., ...
We investigate morphological structure parameters and local environments of distant moderate-luminosity active galactic nucleus (AGN) host galaxies in the overlap between the HST/ACS observations of...
The Extended Chandra Deep Field-South Survey. Chandra Point-Source Catalogs (2005)
Lehmer, B. D., Brandt, W. N., Alexander, D. M., Bauer, F. E., Schneider, D. P., Tozzi, P., ...
We present Chandra point-source catalogs for the Extended Chandra Deep Field-South (E-CDF-S) survey. The E-CDF-S consists of four contiguous 250 ks Chandra observations covering an approximately...
Labiano, A., O'Dea, C. P., Gelderman, R., De Vries, W. H., Axon, D. J., Barthel, P. D., ...
We present Hubble Space Telescope Imaging Spectrograph long-slit spectroscopy of the emission line nebulae in the compact steep spectrum radio sources 3C 67, 3C 277.1, and 3C 303.1. We derive BPT...
Passively Evolving Early-type Galaxies at 1.4 (2005)
Daddi, E., Renzini, A., Pirzkal, N., Cimatti, A., Malhotra, S., Stiavelli, M., ...
We report on a complete sample of 7 luminous early-type galaxies in the Hubble Ultra Deep Field (UDF) with spectroscopic redshifts between 1.39 and 2.47 and to K1.4. Low-resolution spectra of these...
The Chandra Deep Field South/GOODS survey. Optically faint X-ray sources (2005)
Mainieri, V., Rosati, P., Tozzi, P., Bergeron, J., Gilli, R., Hasinger, G., ...
We provide important new constraints on the nature and redshift distribution of optically faint (R>25) X-ray sources in the Chandra Deep Field South Survey. We show that we can derive accurate...
Early spitzer detections of Extreme X-ray / Optical sources (EXOs) (2005)
Koekemoer, A. M., Alexander, D. M., Bauer, F. E., Bergeron, J., Brandt, W. N., Cristiani, S., ...
Passively evolving early-type galaxies at 1.4 (2005)
Daddi, E., Renzini, A., Pirzkal, N., Cimatti, A., Malhotra, S., Stiavelli, M., ...
The Chandra deep field south/GOODS survey - optically faint X-ray sources (2005)
Mainieri, V., Rosati, P., Tozzi, P., Bergeron, J., Gilli, R., Hasinger, G., ...
EXOs: a population of dusty AGN in the early universe (2005)
Koekemoer, A. M., Alexander, D. M., Bauer, F. E., Bergeron, J., Brandt, W. N., Cristiani, S., ...
The extended Chandra deep field-south survey: Chandra point-source catalogs (2005)
Lehmer, B. D., Brandt, W. N., Alexander, D. M., Bauer, F. E., Bouwens, D. P., Tozzi, P., ...
Stars in the Hubble Ultra Deep Field (2004)
Pirzkal, N., Sahu, K. C., Burgasser, A., Moustakas, L. A., Xu, C., Malhotra, S., ...
We identified 46 unresolved source candidates in the Hubble Ultra Deep Field, down to i775 = 29.5. Unresolved objects were identified using a parameter S, which measures the deviation from the...
X-ray Properties of Lyman Break Galaxies in the Great Observatories Origins Deep Survey (2004)
Lehmer, B. D., Brandt, W. N., Alexander, D. M., Bauer, F. E., Conselice, C. J., Dickinson, M. E., ...
We constrain the X-ray emission properties of Lyman break galaxies (LBGs) at z ~ 3-6 using the 2 Ms Chandra Deep Field-North and 1 Ms Chandra Deep Field-South. Large samples of LBGs were discovered...
The VLA-COSMOS Survey: I. Radio Identifications from the Pilot Project (2004)
Schinnerer, E., Carilli, C. L., Scoville, N. Z., Bondi, M., Ciliegi, P., Vettolani, P., ...
We present a catalog of 246 radio sources found in the central 1 degree of the COSMOS field at 1.4GHz. The VLA pilot project data have a resolution of 1.9"x1.6" and an rms noise limit of...
Prevalence of X-ray variability in the Chandra Deep Field South (2004)
Paolillo, M., Schreier, E. J., Giacconi, R., Koekemoer, A. M., Grogin, N. A.
We studied the X-ray variability of sources detected in the Chandra Deep Field South (Giacconi et al. 2002), nearly all of which are low to moderate z AGN (Tozzi et al. 2001). We find that 45% of the...
GRAPES, Grism Spectroscopy of the Hubble Ultra Deep Field: Description and Data Reduction (2004)
Pirzkal, N., Xu, C., Malhotra, S., Rhoads, J. E., Koekemoer, A. M., Moustakas, L. A., ...
We present deep unbiased spectroscopy of the Hubble Ultra Deep Field (UDF) carried out using the slitless grism spectroscopy mode of the Advance Camera for Surveys on the Hubble Space Telescope...
The VLA-COSMOS Survey: I. Radio Identifications from the Pilot Project (2004)
Schinnerer, E., Carilli, C. L., Scoville, N. Z., Bondi, M., Ciliegi, P., Vettolani, P., ...
We present a catalog of 246 radio sources found in the central 1 degree of the COSMOS field at 1.4GHz. The VLA pilot project data have a resolution of 1.9"x1.6" and an rms noise limit of...
The VLA-COSMOS Survey: I. Radio Identifications from the Pilot Project (2004)
Schinnerer, E., Carilli, C. L., Scoville, N. Z., Bondi, M., Ciliegi, P., Vettolani, P., ...
We present a catalog of 246 radio sources found in the central 1 degree of the COSMOS field at 1.4GHz. The VLA pilot project data have a resolution of 1.9"x1.6" and an rms noise limit of...
Photometric Redshifts for galaxies in the GOODS southern field (2004)
Mobasher, B., Idzi, R., Benítez, N., Cimatti, A., Christiani, S., Daddi, E., ...
The VLA-COSMOS survey. I. Radio identifications from the pilot project (2004)
Schinnerer, E., Carilli, C. L., Scoville, N. Z., Bondi, M., Ciliegi, P., Vettolani, P., ...
Grogin, N. A., Koekemoer, A. M., Schreier, E. J., Bergeron, J., Giacconi, R., Hasinger, G., ...
We present quantitative morphological analyses of 37 HST/WFPC2 counterparts of X-ray sources in the 1 Ms Chandra Deep Field-South (CDFS). We investigate: 1) 1-D surface brightness profiles via...
Photometric Redshifts for Galaxies in the GOODS Southern Field (2003)
Mobasher, B., Idzi, R., Benitez, N., Cimatti, A., Cristiani, S., Daddi, E., ...
We use extensive multi-wavelength photometric data from the Great Observatories Origins Deep Survey (GOODS) to estimate photometric redshifts for a sample of 434 galaxies with spectroscopic redshifts...
The Nature of Near-UV Selected Objects in the Chandra Deep Field South (2003)
De Mello, Duilia. F., Gardner, Jonathan. P., Dahlen, T., Conselice, C. J., Grogin, N. A., Koekemoer, A. M.
We present the first results of the pure parallel near-UV observations with WFPC2 in the Chandra Deep Field South. The main goal is to search for the population of objects that contribute to the rise...
Lower Mass Black Holes in the GOODS? Off-nuclear X-ray Sources (2003)
Hornschemeier, A. E., Alexander, D. M., Bauer, F. E., Brandt, W. N., Chary, R., Conselice, C., ...
We have identified a sample of 10 highly reliable off-nuclear (> 2 kpc) X-ray sources at z=0.03-0.25 in late-type host galaxies within the two GOODS fields (i.e., the two Chandra Deep Fields). The...
Toward a Multi-Wavelength Geometric Distortion Solution for WFPC2. (2003)
V. Kozhurina-platais, J. Anderson, A. M. Koekemoer
The goal of an astrometric calibration of HST WFPC2 is to obtain a coordinate system free of distortion at the level of precision of 1 mas. So far such calibration has been done only for the wide...
Instrument Science Report WFPC2 2003-01 WFPC2 Cycle 9 Closure Report (2003)
A. M. Koekemoer, S. Baggett, S. Gonzaga, I. Heyer
This report describes in detail the WFPC2 observations used to maintain and improve the quality of WFPC2 calibrations during Cycle 9, and their status at completion of the Cycle.
Jet-cloud interactions in compact radio sources (2002)
Baum , S. A., Koekemoer , A. M., Mack , J., O`Dell , C. R., Vries , W. H. De
We present HST/STIS long slit spectra of the aligned emission line nebulae in 3 powerful Compact Steep Spectrum (CSS) radio sources. We nd systematic o sets in the line centroid on the two sides of...
Jet-Cloud Interactions In Compact Radio Sources (2002)
C. P. O'Dea, C. P. O’dea, A. M. Koekemoer, S. A. Baum, J. Mack
We present HST/STIS long slit spectra of the aligned emission line nebulae in 3 powerful Compact Steep Spectrum (CSS) radio sources. We find systematic o#sets in the line centroid on the two sides of...
Koekemoer, A. M., Grogin, N. A., Schreier, E. J., Giacconi, R., Gilli, R., Kewley, L., ...
We present HST/WFPC2 observations of a well-defined sample of 40 X-ray sources with X-ray fluxes above the detection threshold of the full 1 Msec Chandra Deep Field South (CDFS). The sensitivity and...
HST Imaging in the Chandra Deep Field South: I. Multiple AGN Populations (2001)
Schreier, E. J., Koekemoer, A. M., Grogin, N. A., Giacconi, R., Gilli, R., Kewley, L., ...
We present preliminary results from imaging three HST/WFPC2 fields in V and I within the Chandra Deep Field South (CDFS). HST's sensitivity and resolution are sufficient to reveal optical...
Instrument Science Report WFPC2 01-06 WFPC2 Cycle 8 Closure Report (2001)
S. Baggett, S. Gonzaga, J. Biretta, I. Heyer, A. M. Koekemoer, J. Mack, ...
This report describes in detail the WFPC2 observations used to maintain and improve the quality of WFPC2 calibrations during Cycle 8 and their status as of May 2001. The results from servicing...
The Extended Blue Continuum and Line Emission around the Central Radio Galaxy in Abell 2597 (1999)
Koekemoer, A. M., O'Dea, C. P., Sarazin, C. L., McNamara, B. R., Donahue, M., Voit, G. M., ...
We present results from detailed imaging of the centrally dominant radio elliptical galaxy in the cooling flow cluster Abell 2597, using data obtained with the Wide Field and Planetary Camera 2...
HI Absorption Toward the Nucleus of the Radio Galaxy PKS 2322-123 in A 2597 (1998)
Taylor, G. B., O'Dea, C. P., Peck, A. B., Koekemoer, A. M.
We present sensitive, high resolution Very Long Baseline Array (VLBA) observations of the central 0.3 arcsec of PKS 2322-123 at 1.3 and 5 GHz. These observations reveal straight and symmetric jets...
Constraints on UV Absorption in the Intracluster Medium of Abell 1030 (1998)
Koekemoer, A. M., O'Dea, C. P., Baum, S. A., Sarazin, C. L., Owen, F. N., Ledlow, M. J.
We present results from an extensive HST spectroscopic search for UV absorption lines in the spectrum of the quasar B2~1028+313, which is associated with the central dominant galaxy in the cluster...
X-ray Properties of B2 1028+313: A Quasar at the Center of the Abell Cluster A1030 (1998)
Sarazin, C. L., Koekemoer, A. M., Baum, S. A., O'Dea, C. P., Owen, F. N., Wise, M. W.
X-ray observations with the ROSAT HRI and with ASCA are presented for the nearby radio quasar B2 1028+313, which is located in the cD galaxy at the center of the Abell cluster A1030. We also analyze...