A Vigorous Explorer Program (2009)
Elvis, Martin, Beasley, Matthew, Brissenden, Roger, Chakrabarti, Supriya, Cherry, Michael, Devlin, Mark, ...
Explorers have made breakthroughs in many fields of astrophysics. The science from both these missions contributed to three Nobel Prizes - Giacconi (2002), Mather, and Smoot (2006). Explorers have:...
In this paper we examine several aspects of the impact of Cyberworld onto our Reality conceptions, and their social implications.
A Comparison of X-ray and Mid-Infrared Selection of Obscured AGN (2009)
Eckart, Megan E., McGreer, Ian D., Stern, Daniel, Harrison, Fiona A., Helfand, David J.
We compare the relative merits of AGN selection at X-ray and mid-infrared wavelengths using data from moderately deep fields observed by both Chandra and Spitzer. The X-ray-selected AGN sample and...
Optical and near-IR spectroscopy of candidate red galaxies in two z~2.5 proto-clusters (2009)
Doherty, Michelle, Tanaka, Masayuki, De Breuck, Carlos, Ly, Chun, Kodama, Tadayuki, Kurk, Jaron, ...
We present a spectroscopic campaign to follow-up red colour-selected candidate massive galaxies in two high redshift proto-clusters surrounding radio galaxies. We observed a total of 57 galaxies in...
Walsh, Jonelle L., Minezaki, Takeo, Bentz, Misty C., Barth, Aaron J., Baliber, Nairn, Li, Weidong, ...
The Lick AGN Monitoring Project targeted 13 nearby Seyfert 1 galaxies with the intent of measuring the masses of their central black holes using reverberation mapping. The sample includes 12 galaxies...
Large scale structures around radio galaxies at z~1.5 (2009)
Galametz, Audrey, De Breuck, Carlos, Vernet, Joel, Stern, Daniel, Rettura, Alessandro, Marmo, Chiara, ...
We explore the environments of two radio galaxies at z~1.5, 7C1751+6809 and 7C1756+6520, using deep optical and near-infrared imaging. Our data cover 15'x15' fields around the radio galaxies. We...
Bentz, Misty C., Walsh, Jonelle L., Barth, Aaron J., Baliber, Nairn, Bennert, Nicola, Canalizo, Gabriela, ...
We have recently completed a 64-night spectroscopic monitoring campaign at the Lick Observatory 3-m Shane telescope with the aim of measuring the masses of the black holes in 12 nearby (z < 0.05)...
Cosmic Chronometers: Constraining the Equation of State of Dark Energy. I: H(z) Measurements (2009)
Stern, Daniel, Jimenez, Raul, Verde, Licia, Kamionkowski, Marc, Stanford, S. Adam
We present new determinations of the cosmic expansion history from red-envelope galaxies. We have obtained for this purpose high-quality spectra with the Keck-LRIS spectrograph of red-envelope...
Stern, Daniel, Jimenez, Raul, Verde, Licia, Stanford, S. Adam, Kamionkowski, Marc
We present a spectroscopic catalog of (mostly) red galaxies in 24 galaxy clusters in the redshift range 0.17 < z < 0.92 obtained with the LRIS instrument on the Keck I telescope. Here we describe the...
A 1.75 kpc/h Separation Dual AGN at z=0.36 in the COSMOS Field (2009)
Comerford, Julia M., Griffith, Roger L., Gerke, Brian F., Cooper, Michael C., Newman, Jeffrey A., Davis, Marc, ...
We present strong evidence for dual active galactic nuclei (AGN) in the z=0.36 galaxy COSMOS J100043.15+020637.2. COSMOS Hubble Space Telescope (HST) imaging of the galaxy shows a tidal tail,...
Hickox, Ryan C., Jones, Christine, Forman, William R., Murray, Stephen S., Kochanek, Christopher S., Eisenstein, Daniel, ...
We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of...
The Star Formation Camera (2009)
Scowen, Paul A., Jansen, Rolf, Beasley, Matthew, Calzetti, Daniela, Desch, Steven, Fullerton, Alex, ...
The Star Formation Camera (SFC) is a wide-field (~15'x19, >280 arcmin^2), high-resolution (18x18 mas pixels) UV/optical dichroic camera designed for the Theia 4-m space-borne space telescope concept....
Galaxy Assembly and SMBH/AGN-growth from Cosmic Dawn to the End of Reionization (2009)
Jansen, Rolf A., Windhorst, Rogier, Rhoads, James, Malhotra, Sangeeta, Stern, Daniel, O'Connell, Robert, ...
[abridged] We propose a tiered, UV--near-IR, cosmological broad- and medium-band imaging and grism survey that covers ~10 deg^2 in two epochs to m_AB=28, ~3 deg^2 in seven epochs to m_AB=28, and ~1...
Coppin, Kristen, Smail, Ian, Alexander, David M., Weiss, Axel, Walter, Fabian, Swinbank, Mark, ...
We report on the identification of the highest redshift submm-selected source currently known: LESSJ033229.4-275619. This source was detected in the Large Apex BOlometer CAmera (LABOCA) Extended...
Strong gravitational lensing probes of the particle nature of dark matter (2009)
Moustakas, Leonidas A., Abazajian, Kevork, Benson, Andrew, Bolton, Adam S., Bullock, James S., Chen, Jacqueline, ...
There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these candidates may have...
Cooray, Asantha, Amblard, Alexandre, Beichman, Charles, Benford, Dominic, Bernstein, Rebecca, Bock, James, ...
(Brief Summary) What is the total radiative content of the Universe since the epoch of recombination? The extragalactic background light (EBL) spectrum captures the redshifted energy released from...
Hickox, Ryan C., Jones, Christine, Forman, William R., Murray, Stephen S., Kochanek, Christopher S., Eisenstein, Daniel, ...
We explore the connection between different classes of active galactic nuclei (AGNs) and the evolution of their host galaxies, by deriving host galaxy properties, clustering, and Eddington ratios of...
The Cosmic Evolution of AGN in galaxy clusters (2009)
Galametz, Audrey, Stern, Daniel, Eisenhardt, Peter R. M., Brodwin, Mark, Brown, Michael J. I., Dey, Arjun, ...
We present the surface density of luminous active galactic nuclei (AGN) associated with a uniformly selected galaxy cluster sample identified in the 8.5 square degree Bootes field of the NOAO Deep...
Clustering of red galaxies around the z=1.53 quasar 3C270.1 (2009)
Haas, Martin, Willner, S. P., Heymann, Frank, Ashby, M. L. N., Fazio, G. G., Wilkes, Belinda J., ...
In the paradigm of hierarchical galaxy formation, luminous radio galaxies mark mass assembly peaks that should contain clusters of galaxies. Observations of the z=1.53 quasar 3C270.1 with the Spitzer...
6-Benzyl-3,4-dimethoxy-10-methylpyrido[2′,1′:2,3]imidazo[4,5-c]isoquinolin-5(6H)-one (2009)
Kathrin Meindl, Daniel Stern, Fadime Mert-Balci, Uwe Beifuss
Pyrido[2′,1′:2,3]imidazo[4,5-c]isoquinolin-5(6H)-ones such as the title compound, C24H21N3O3, can be obtained in a few minutes in a microwave-assisted three-component reaction from...
First Results from the Lick AGN Monitoring Project: The Mass of the Black Hole in Arp 151 (2008)
Bentz, Misty C., Walsh, Jonelle L., Barth, Aaron J., Baliber, Nairn, Bennert, Nicola, Canalizo, Gabriela, ...
We have recently completed a 64-night spectroscopic monitoring campaign at the Lick Observatory 3-m Shane telescope with the aim of measuring the masses of the black holes in 13 nearby (z < 0.05)...
Mid-infrared selection of brown dwarfs and high-redshift quasars (2008)
Stern, Daniel, Kirkpatrick, J. Davy, Allen, Lori E., Bian, Chao, Blain, Andrew, Brand, Kate, ...
We discuss color selection of rare objects in a wide-field multiband survey spanning from the optical to the mid-infrared. Simple color criteria simultaneously identify and distinguish two of the...
Zepf, Stephen E., Stern, Daniel, Maccarone, Thomas J., Kundu, Arunav, Kamionkowski, Marc, Rhode, Katherine L., ...
We present Keck LRIS spectroscopy of the black hole–hosting globular cluster RZ 2109 in the Virgo elliptical galaxy NGC 4472. We find that this object has extraordinarily broad [O III] λ5007 and...
Spitzer Space Telescope Observations of the aftermath of Microlensing Event MACHO-LMC-5 (2008)
Nguyen, Hien T., Kallivayalil, Nitya, Werner, Michael W., Alcock, Charles, Patten, Brian M., Stern, Daniel
We have carried out photometry of the microlensing event MACHO-LMC-5 with Spitzer Infrared Array Camera (IRAC) 10 years after the magnification of the LMC source star was recorded. This event is...
A luminosity function of Lyα-emitting galaxies at z ≈ 4.5¹´² (2008)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Wang, JunXian, Dey, Arjun, ...
We present a catalog of 59 z ≈ 4:5 Lyα-emitting galaxies spectroscopically confirmed in a campaign of Keck DEIMOS follow-up observations to candidates selected in the Large Area Lyα (LALA)...
Confirmation of a radio-selected galaxy overdensity at z = 1.11¹ (2008)
Stern, Daniel, Holden, Brad, Stanford, S. A., Spinard, Hyron
We report the discovery of a galaxy overdensity at z = 1.11 associated with the z = 1.110 high-redshift radio galaxy MG1 J04426+0202 (hereafterMG0442+0202). The group, Cl 0442+0202, was found in a...
Confirmation of a radio-selected galaxy overdensity at z=1.11 (2008)
Stern, Daniel, Holden, Brad, Stanford, S. A., Spinard, Hyron
We report the discovery of a galaxy overdensity at z = 1.11 associated with the z = 1.110 high-redshift radio galaxy MG1 J04426+0202 (hereafter MG 0442+0202). The group, Cl 0442+0202, was found in a...
Redshift distribution of extragalactic 24 μm sources (2008)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Jannuzi, Buell T., Le Floc'h, Emeric, Bian, Chao, ...
We present the redshift distribution of a complete, unbiased sample of 24 μm sources down to f_ν(24 μm) = 300 μJy (5 σ). The sample consists of 591 sources detected in the Boötes field of the...
Zepf, Stephen E., Stern, Daniel, Maccarone, Thomas J., Kundu, Arunav, Kamionkowski, Marc, Rhode, Katherine L., ...
We present Keck LRIS spectroscopy of the black hole-hosting globular cluster RZ2109 in the Virgo elliptical galaxy NGC 4472. We find that this object has extraordinarily broad [OIII]5007 and...
A Large Population of High Redshift Galaxy Clusters in the IRAC Shallow Cluster Survey (2008)
Brodwin, Mark, Eisenhardt, Peter R., Gonzalez, Anthony H., Stanford, Adam, Stern, Daniel, Moustakas, Leonidas A., ...
We have identified 335 galaxy cluster and group candidates spanning 01, a wider range of formation histories is needed, but higher formation redshifts (i.e. z_f \ge 4-5) are favored for most...
Clusters of Galaxies in the First Half of the Universe from the IRAC Shallow Survey (2008)
Eisenhardt, Peter R. M., Brodwin, Mark, Gonzalez, Anthony H., Stanford, S. Adam, Stern, Daniel, Barmby, Pauline, ...
We have identified 335 galaxy cluster and group candidates, 106 of which are at z > 1, using a 4.5 um selected sample of objects from a 7.25 deg^2 region in the Spitzer Infrared Array Camera (IRAC)...
Radio-loud high-redshift protogalaxy candidates in Bootes (2008)
Croft, Steve, Van Breugel, Wil, Brown, Michael J. I., De Vries, Wim, Dey, Arjun, Eisenhardt, Peter, ...
We used the Near Infrared Camera on Keck I to obtain Ks-band images of four candidate high-redshift radio galaxies selected using optical and radio data in the NOAO Deep Wide-Field Survey in Bootes....
Redshift Distribution of Extragalactic 24 micron Sources (2008)
Desai, Vandana, Soifer, B. T., Dey, Arjun, Jannuzi, Buell T., Floc'h, Emeric Le, Bian, Chao, ...
We present the redshift distribution of a complete, unbiased sample of 24 micron sources down to fnu(24 micron) = 300 uJy (5-sigma). The sample consists of 591 sources detected in the Bootes field of...
SERENDIPITOUSLY DETECTED GALAXIES IN THE HUBBLE DEEP FIELD1 (2007)
Steve Dawson, Daniel Stern, Andrew J. Bunker, Hyron Spinrad, Arjun Dey
We present a catalog of 74 galaxies detected serendipitously during a campaign of spectroscopic observations of the Hubble Deep Field North (HDF) and its environs. Among the identied objects are ve...
The Warm Spitzer Mission: Prospects for Studies of the Distant Universe (2007)
Van Dokkum, Pieter, Cooray, Asantha, Labbe, Ivo, Papovich, Casey, Stern, Daniel
IRAC excels at detecting distant objects. Due to a combination of the shapes of the spectral energy distributions of galaxies and the low background achieved from space, IRAC reaches greater depth in...
Hubble Ultra Deep Field-JD2: Mid-Infrared Evidence for a z ~ 2 Luminous Infrared Galaxy (2007)
Chary, Ranga-Ram, Teplitz, Harry I., Dickinson, Mark E., Koo, David C., Le Floc'h, Emeric, Marcillac, Delphine, ...
The Hubble Ultra Deep Field source JD2 presented in Mobasher et al. is an unusual galaxy that is very faint at all wavelengths shortward of 1.1 μm. Photometric redshift fits to data between 0.4 and...
A Luminosity Function of Lyman Alpha Emitting Galaxies at Redshift 4.5 (2007)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Wang, JunXian, Dey, Arjun, ...
We present a catalog of 59 z=4.5 Lyman alpha emitting galaxies spectroscopically confirmed in a campaign of Keck/DEIMOS follow-up observations to candidates selected in the Large Area Lyman Alpha...
Discovery of two spectroscopically peculiar, low-luminosity quasars at z ~ 4 (2007)
Glikman, Eilat, Djorgovski, S. G., Stern, Daniel, Bogosavljević, Milan, Mahabal, Ashish
We report the discovery of two low-luminosity quasars at z ~ 4, both of which show prominent N iv] λ1486 emission. This line is extremely rare in quasar spectra at any redshift; detecting it in two...
Reuland, Michiel, Van Breugel, Wil, De Vries, Wim, Dopita, Michael A., Dey, Arjun, Miley, George, ...
We present the results of an optical and near-IR spectroscopic study of giant nebular emission-line halos associated with three z > 3 radio galaxies, 4C 41.17, 4C 60.07, and B2 0902+34. Previous deep...
Discovery of Two Spectroscopically Peculiar, Low-Luminosity Quasars at z~4 (2007)
Glikman, Eilat, Djorgovski, S. G., Stern, Daniel, Bogosavljevic, Milan, Mahabal, Ashish
We report the discovery of two low-luminosity quasars at z~4, both of which show prominent N IV] 1486A emission. This line is extremely rare in quasar spectra at any redshift; detecting it in two out...
HUDF-JD2: Mid-infrared Evidence for a z~2 Luminous Infrared Galaxy (2007)
Chary, Ranga-Ram, Teplitz, Harry I., Dickinson, Mark E., Koo, David C., Floc'h, Emeric Le, Marcillac, Delphine, ...
The Hubble Ultra Deep Field source JD2 presented in Mobasher et al. (2005) is an unusual galaxy that is very faint at all wavelengths shortward of 1.1 micron. Photometric redshift fits to data at 0.4...
The Massive Hosts of Radio Galaxies Across Cosmic Time (2007)
Seymour, Nick, Stern, Daniel, De Breuck, Carlos, Vernet, Joel, Rettura, Alessandro, Dickinson, Mark, ...
We present the results of a comprehensive Spitzer survey of 69 radio galaxies across 1
Reuland, Michiel, Van Breugel, Wil, De Vries, Wim, Dopita, Michael A., Dey, Arjun, Miley, George, ...
We present the results of an optical and near-IR spectroscopic study of giant nebular emission line halos associated with three z > 3 radio galaxies, 4C 41.17, 4C 60.07 and B2 0902+34. Previous deep...
Riess, Adam G., Strolger, Louis-Gregory, Casertano, Stefano, Ferguson, Henry C., Mobasher, Bahram, Gold, Ben, ...
We have discovered 21 new Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST) and have used them to trace the history of cosmic expansion over the last 10 billion years. These objects,...
Clustering of the IR Background Light with Spitzer: Contribution from Resolved Sources (2006)
Sullivan, Ian, Cooray, Asantha, Chary, Ranga-Ram, Bock, James J., Brodwin, Mark, Brown, Michael J. I., ...
We describe the angular power spectrum of resolved sources at 3.6 microns (L-band) in Spitzer imaging data of the GOODS HDF-N, the GOODS CDF-S, and the NDWFS Bootes field in several source magnitude...
Pope, Alexandra, Scott, Douglas, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn, Borys, Colin, ...
We present spectral energy distributions (SEDs), Spitzer colours, and infrared (IR) luminosities for 850-μm selected galaxies in the Great Observatories Origins Deep Survey Northern (GOODS-N) field....
Stern, Daniel, Chary, Ranga-Ram, Eisenhardt, Peter, Moustakas, Leonidas
We present Spitzer Space Telescope observations of the well-studied extremely red objects (EROs) HR10 and LBDS53W091 from 3.6 to 160 microns. These galaxies are the prototypes of the two primary...
A New Einstein Cross: A Highly Magnified, Intrinsically Faint Lyman-Alpha Emitter at z=2.7 (2006)
Bolton, Adam S., Moustakas, Leonidas A., Stern, Daniel, Burles, Scott, Dey, Arjun, Spinrad, Hyron
We report the discovery of a new Einstein cross at redshift z_S = 2.701 based on Lyman-alpha emission in a cruciform configuration around an SDSS luminous red galaxy (z_L = 0.331). The system was...
Pope, Alexandra, Scott, Douglas, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn, Borys, Colin, ...
We present SEDs, Spitzer colours, and IR luminosities for 850 micron selected galaxies in the GOODS-N field. Using the deep Spitzer Legacy images and new data and reductions of the VLA-HDF radio...
The Discovery of Three New z>5 Quasars in the AGN and Galaxy Evolution Survey (2006)
Cool, Richard J., Kochanek, Christopher S., Eisenstein, Daniel J., Stern, Daniel, Brand, Kate, Brown, Michael J. I., ...
We present the discovery of three z>5 quasars in the AGN and Galaxy Evolution Survey (AGES) spectroscopic observations of the NOAO Deep Wide-Field Survey (NDWFS) Bootes Field. These quasars were...
Yan, Haojing, Dickinson, Mark, Giavalisco, Mauro, Stern, Daniel, Eisenhardt, Peter R. M., Ferguson, Henry C.
Using the deep Spitzer IRAC observations of the Great Observatories Origins Deep Survey (GOODS), we study the stellar masses and star formation histories of galaxies at z ~ 6. Our study is based on...
Eckart, Megan E., Stern, Daniel, Helfand, David J., Harrison, Fiona A., Mao, Peter H., Yost, Sarah A.
We present the catalog of 477 spectra from the Serendipitous Extragalactic X-ray Source Identification (SEXSI) program, a survey designed to probe the dominant contributors to the 2-10 keV cosmic...
Optical and Infrared Non-detection of the z=10 Galaxy Behind Abell 1835 (2006)
Smith, Graham P., Sand, David J., Egami, Eiichi, Stern, Daniel, Eisenhardt, Peter R.
Gravitational lensing by massive galaxy clusters is a powerful tool for the discovery and study of high redshift galaxies, including those at z>=6 likely responsible for cosmic re-ionization. Pello...
Spitzer observations of the dusty warped disk of Centaurus A (2006)
Quillen, Alice C., Brookes, Mairi H., Keene, Jocelyn, Stern, Daniel, Lawrence, Charles R., Werner, Michael W.
Spitzer mid-infrared images of the dusty warped disk in the galaxy Centaurus A show a parallelogram-shaped structure. We successfully model the observed mid-infrared morphology by integrating the...
Discovery of a 500 pc shell in the nucleus of Centaurus A (2006)
Quillen, Alice C., Bland-Hawthorn, Joss, Brookes, Mairi H., Werner, Michael W., Smith, J. D., Stern, Daniel, ...
Spitzer Space Telescope mid-infrared images of the radio galaxy Centaurus A reveal a shell-like, bipolar, structure 500 pc to the north and south of the nucleus. This shell is seen in 5.8, 8.0 and 24...
The FLAMINGOS Extragalactic Survey (2005)
Elston, Richard J., Gonzalez, Anthony H., McKenzie, Eric, Brodwin, Mark, Brown, Michael J. I., Cardona, Gustavo, ...
Using the Florida Multi-object Imaging Near-IR grism Observational Spectrometer (FLAMINGOS), we have conducted the FLAMINGOS Extragalactic Survey (FLAMEX), a deep imaging survey covering 7.1 square...
De Breuck, Carlos, Van Breugel, Wil, Stanford, Adam, Rottgering, Huub, Miley, George, Stern, Daniel
We present optical and/or near-IR images of 128 ultra steep spectrum (USS) radio sources. Roughly half of the objects are identified in the optical images (R 94% are detected at K5). The major axes...
Spectroscopy of Ultra Steep Spectrum Radio Sources (2005)
De Breuck, Carlos, Van Breugel, Wil, Rottgering, Huub, Stern, Daniel, Miley, George, De Vries, Wim, ...
We present optical spectroscopy of 62 objects selected from several samples of ultra steep spectrum (USS) radio sources. 46 of these are from our primary catalog, consisting of 669 sources with radio...
Spitzer Constraints on the z=6.56 Galaxy Lensed by Abell 370 (2005)
Chary, Ranga-Ram, Stern, Daniel, Eisenhardt, Peter
We report on Spitzer IRAC observations of the spectroscopically confirmed z=6.56 lensed Ly-alpha emitting source HCM 6A which was found behind the cluster Abell 370. Detection of the source at 3.6...
An IR-Selected Galaxy Cluster at z = 1.41 (2005)
Stanford, S. A., Eisenhardt, Peter R., Brodwin, Mark, Gonzalez, Anthony H., Stern, Daniel, Jannuzi, Buell, ...
We report the discovery of a galaxy cluster at z = 1.41. ISCS J143809+341419 was found in the Spitzer/IRAC Shallow Survey of the Bootes field in the NOAO Deep Wide-Field Survey carried out by IRAC....
Black Hole Masses and Eddington Ratios at 0.3 (2005)
Kollmeier, Juna A., Onken, Christopher A., Kochanek, Christopher S., Gould, Andrew, Weinberg, David H., Dietrich, Matthias, ...
We study the distribution of Eddington luminosity ratios, L_bol/L_edd, of active galactic nuclei (AGNs) discovered in the AGN and Galaxy Evolution Survey (AGES). We combine H-beta, MgII, and CIV line...
Yan, Haojing, Dickinson, Mark, Stern, Daniel, Eisenhardt, Peter R. M., Chary, Ranga-Ram, Giavalisco, Mauro, ...
We use data from the first epoch of observations with the IRAC/Spitzer for the GOODS to detect and study a collection of LBGs at z ~ 6 to 5 in the HUDF, six of which have spectroscopic confirmation....
De Breuck, Carlos, Neri, Roberto, Morganti, Raffaella, Omont, Alain, Rocca-Volmerange, Brigitte, Stern, Daniel, ...
We present results of a comprehensive multi-frequency study of the radio galaxy B3 J2330+3927. The 1.9\" wide radio source, consisting of 3 components, is bracketed by 2 objects in our Keck K-band...
Drozdovsky, Igor, Yan, Lin, Chen, Hsiao-Wen, Stern, Daniel, Kennicutt Jr., Robert, Spinrad, Hyron, ...
We present the first results from the HST/ACS Grism Parallel Survey, a large program obtaining deep, slitless ACS grism spectroscopy of high-latitude HST parallel fields. We report on 11 high...
Mid-Infrared Selection of Active Galaxies (2004)
Stern, Daniel, Eisenhardt, Peter, Gorjian, Varoujan, Kochanek, Christopher S., Caldwell, Nelson, Eisenstein, Daniel, ...
Mid-infrared photometry provides a robust technique for identifying active galaxies. While the ultraviolet to mid-infrared continuum of normal galaxies is dominated by the composite stellar black...
Spectroscopic Properties of the z=4.5 Lyman-alpha Emitters (2004)
Dawson, Steve, Rhoads, James E., Malhotra, Sangeeta, Stern, Daniel, Dey, Arjun, Spinrad, Hyron, ...
We present Keck/LRIS optical spectra of 17 Lya-emitting galaxies and one Lyman break galaxy at z=4.5 discovered in the Large Area Lyman Alpha (LALA) survey. The survey has identified a sample of ~350...
Eckart, Megan E., Laird, Elise S., Stern, Daniel, Mao, Peter H., Helfand, David J., Harrison, Fiona A.
The Serendipitous Extragalactic X-ray Source Identification (SEXSI) Program is designed to expand significantly the sample of identified extragalactic hard X-ray sources at intermediate fluxes, 1e-13...
Yan, Haojing, Dickinson, Mark, Eisenhardt, Peter R. M., Ferguson, Henry C., Grogin, Norman A., Paolillo, Maurizio, ...
Using early data from the Infrared Array Camera (IRAC) on the Spitzer Space Telescope, taken for the Great Observatories Origins Deep Survey (GOODS), we identify and study objects that are...
A Galaxy at z = 6.545 and Constraints on the Epoch of Reionization (2004)
Stern, Daniel, Yost, Sarah A., Eckart, Megan E., Harrison, Fiona A., Helfand, David J., Djorgovski, S. G., ...
We report the discovery of a Lyman-alpha-emitting galaxy at redshift z=6.545 serendipitously identified in the course of spectroscopic follow-up of hard X-ray sources on behalf of the Serendipitous...
Spitzer Space Telescope Observations of the Aftermath of Microlensing Event MACHO-LMC-5 (2004)
Nguyen, Hien Trong, Kallivayalil, Nitya, Werner, Michael, Alcock, Charles, Patten, Brian, Stern, Daniel
We have carried out photometry of the microlensing event MACHO-LMC-5 with Spitzer's IRAC ten years after the magnification of the LMC source star was recorded. This event is unique in the annals of...
Stern, Daniel, Van Dokkum, P. G., Nugent, Peter, Sand, D. J., Ellis, R. S., Sullivan, Mark, ...
We report the discovery of a transient source in the central regions of galaxy cluster Abell 267. The object, which we call "PALS1", was found in a survey aimed at identifying highly-magnified...
Rhoads, James E., Xu, Chun, Dawson, Steve, Dey, Arjun, Malhotra, Sangeeta, Wang, JunXian, ...
We present a redshift z=6.535 galaxy discovered by its Lyman alpha emission in a 9180A narrowband image from the Large Area Lyman Alpha (LALA) survey. The Ly-a line luminosity (1.1e43 erg/s) is among...
Evolution in the Colors of Lyman-Break Galaxies from Z~4 to Z~3 (2003)
Papovich, Casey, Dickinson, Mark, Ferguson, Henry C., Giavalisco, Mauro, Lotz, Jennifer, Madau, Piero, ...
The integrated colors of distant galaxies provide a means for interpreting the properties of their stellar content. Here, we use rest-frame UV-to-optical colors to constrain the spectral-energy...
Stern, Daniel, Hall, Patrick B., Barrientos, L. Felipe, Bunker, Andrew J., Elston, Richard, Ledlow, M. J., ...
We report an infrared 1-1.8 micron (J+H-bands), low-resolution (R=450) spectrogram of the highest-redshift radio-loud quasar currently known, SDSS J083643.85+005453.3, obtained during the...
Moustakas, Leonidas A., Casertano, Stefano, Conselice, Chris, Dickinson, Mark E., Eisenhardt, Peter, Ferguson, Henry C., ...
Using U'- through Ks-band imaging data in the GOODS-South field, we construct a large, complete sample of 275 ``extremely red objects'' (EROs; K_s3.35; AB), all with deep HST/ACS imaging in B_435,...
The Size Evolution of High Redshift Galaxies (2003)
Ferguson, Henry C., Dickinson, Mark, Giavalisco, Mauro, Kretchmer, Claudia, Ravindranath, Swara, Idzi, Rafal, ...
Hubble Space Telescope images of high-redshift galaxies selected via color and photometric redshifts are used to examine the size and axial-ratio distribution of galaxies as a function of redshift at...
Somerville, Rachel S., Moustakas, Leonidas A., Mobasher, Bahram, Gardner, Jonathan P., Cimatti, Andrea, Conselice, Christopher, ...
The redshift distribution of near-IR selected galaxies is often used to attempt to discriminate between the classical view of galaxy formation, in which present-day luminous galaxies were assembled...
Harrison, Fiona A., Eckart, Megan E., Mao, Peter H., Helfand, David J., Stern, Daniel
The Serendipitous Extragalactic X-ray Source Identification (SEXSI) Program is designed to extend greatly the sample of identified extragalactic hard X-ray 2-10 keV sources at intermediate fluxes...
Spectroscopic Confirmation of a Radio-Selected Galaxy Overdensity at z=1.11 (2003)
Stern, Daniel, Holden, Brad, Stanford, S. A., Spinrad, Hyron
We report the discovery of a galaxy overdensity at z=1.11 associated with the z=1.110 high-redshift radio galaxy MG0442+0202. The group, CL0442+0202, was found in a near-infrared survey of z>1 radio...
Bunker, Andrew, Smith, Joanna, Spinrad, Hyron, Stern, Daniel, Warren, Stephen
We have discovered extended Lyman-$\alpha$ emission around a $z=4.5$ QSO in a deep long-slit spectrum with Keck/LRIS at moderate spectral resolution ($R\approx 1000$). The line emission extends...
Jimenez, Raul, Verde, Licia, Treu, Tommaso, Stern, Daniel
We place tight constraints on the redshift-averaged, effective value of the equation of state of dark energy, w, using only the absolute ages of Galactic stars and the observed position of the first...
An Obscured Radio Galaxy at High Redshift (2003)
Reuland, Michiel, Van Breugel, Wil, Roettgering, Huub, De Vries, Wim, De Breuck, Carlos, Stern, Daniel
Perhaps as many as 10% of high redshift radio galaxy (HzRG; z > 2) candidates that are selected using an Ultra Steep radio Spectrum (USS) criterion fail to show optical emission (continuum, lines) in...
De Breuck, Carlos, Neri, Roberto, Morganti, Raffaella, Omont, Alain, Rocca-Volmerange, Brigitte, Stern, Daniel, ...
We present results of a comprehensive multi-frequency study of the radio galaxy B3 J2330+3927. The 1.9" wide radio source, consisting of 3 components, is bracketed by 2 objects in our Keck K-band...
Have we found the first stars in Lyman-α emitters? Elektronische Daten (2003)
Malhotra, Sangeeta, Rhoads, James, Wang, Junxian, Dawson, Steve, Dey, Arjun, ...
Talk Abstract von Kongress: Star and Structure Formation: From First Light to the Milky Way, Astrophysics Conference, August 18-22, 2003, ETH Zurich, Switzerland
De Breuck, Carlos, Neri, Roberto, Morganti, Raffaella, Omont, Alain, Rocca-Volmerange, Brigitte, Stern, Daniel, ...
We present results of a comprehensive multi-frequency study of the radio galaxy B3 J2330+3927. The 1.9\" wide radio source, consisting of 3 components, is bracketed by 2 objects in our Keck K-band...
De Breuck, Carlos, Neri, Roberto, Morganti, Raffaella, Omont, Alain, Rocca-Volmerange, Brigitte, Stern, Daniel, ...
We present results of a comprehensive multi-frequency study of the radio galaxy B3 J2330+3927. The 1.9\" wide radio source, consisting of 3 components, is bracketed by 2 objects in our Keck K-band...
Optical and Near-Infrared Spectroscopy of a High-Redshift, Hard X-ray Emitting Spiral Galaxy (2002)
Dawson, Steve, McCrady, Nate, Stern, Daniel, Eckart, Megan E., Spinrad, Hyron, Liu, Michael C., ...
We present optical and near-infrared Keck spectroscopy of CXOHDFN J123635.6+621424 (hereafter HDFX28), a hard X-ray source at a redshift of z = 2.011 in the flanking fields of the Hubble Deep...
Rhoads, James E., Dey, Arjun, Malhotra, Sangeeta, Stern, Daniel, Spinrad, Hyron, Jannuzi, Buell T., ...
Narrow-band searches for Lyman alpha emission are an efficient way of identifying star-forming galaxies at high redshifts. We present Keck telescope spectra confirming redshifts z = 5.7 for three...
HST Imaging of a z=1.55 Old Galaxy Group (2002)
Bunker, Andrew, Spinrad, Hyron, McLure, Ross, Dey, Arjun, Dunlop, James, Peacock, John, ...
We present high-resolution imaging in the rest-frame optical of the weak radio source LBDS53W091. Previous optical spectroscopy has shown that this object has an evolved stellar population of age...
Stern, Daniel, Tozzi, Paolo, Stanford, S. A., Rosati, Piero, Holden, Brad, Eisenhardt, Peter, ...
We present our first results on field X-ray sources detected in a deep, 184.7 ks observation with the ACIS-I camera on Chandra. The observations target the Lynx field of SPICES, and contains three...
A Galactic Wind at z = 5.190 (2002)
Dawson, Steve, Spinrad, Hyron, Dey, Arjun, Van Breugel, Wil, De Vries, Wim, Stern, Daniel, ...
We report the serendipitous detection in high-resolution optical spectroscopy of a strong, asymmetric Ly-alpha emission line at z = 5.190. The detection was made in a 2.25 hour exposure with the...
Chandra Detection of a TypeII Quasar at z=3.288 (2001)
Stern, Daniel, Moran, Edward C., Coil, Alison L., Connolly, Andrew, Davis, Marc, Dawson, Steve, ...
We report on observations of a TypeII quasar at redshift z=3.288, identified as a hard X-ray source in a 185 ks observation with the Chandra X-ray Observatory and as a high-redshift photometric...
De Breuck, Carlos, Van Breugel, Wil, Stanford, Adam, Rottgering, Huub, Miley, George, Stern, Daniel
We present optical and/or near-IR images of 128 ultra steep spectrum (USS) radio sources. Roughly half of the objects are identified in the optical images (R 94% are detected at K5). The major axes...
Jarvis, Matt J., Rawlings, Steve, Lacy, Mark, Blundell, Katherine M., Bunker, Andrew J., Eales, Steve, ...
(Abridged) This is the second in a series of three papers which present and interpret basic observational data on the 6C* 151-MHz radio sample: a low-frequency selected sample which exploits...
Serendipitously Detected Galaxies in the Hubble Deep Field (2001)
Dawson, Steve, Stern, Daniel, Bunker, Andrew J., Spinrad, Hyron, Dey, Arjun
We present a catalog of 74 galaxies detected serendipitously during a campaign of spectroscopic observations of the Hubble Deep Field North (HDF) and its environs. Among the identified objects are...
Riess, Adam G., Nugent, Peter E., Schmidt, Brian P., Tonry, John, Dickinson, Mark, Gilliland, Ronald L., ...
We present photometric observations of an apparent Type Ia supernova (SN Ia) at a redshift of ~1.7, the farthest SN observed to date. SN 1997ff, was discovered in a repeat observation by the HST of...
The Large Area Lyman Alpha Survey (2001)
Rhoads, James E., Malhotra, Sangeeta, Dey, Arjun, Jannuzi, Buell T., Stern, Daniel, Spinrad, Hyron
The Lyman-$\alpha$ line is expected to be strong in the presence of active star formation and the absence of dust, making it a good tool for finding chemically primitive galaxies in the early...
Riess, Adam G., Nugent, Peter E., Schmidt, Brian P., Tonry, John, Dickinson, Mark, Gilliland, Ronald L., ...
We present photometric observations of an apparent Type Ia supernova (SN Ia) at a redshift of approximately 1.7, the farthest SN observed to date. The supernova, SN 1997, was discovered in a repeat...
Large Area Lyman Alpha survey: finding young galaxies at z=4.5 (2001)
Malhotra, Sangeeta, Rhoads, James, Dey, Arjun, Jannuzi, Buell, Stern, Daniel, Spinrad, Hyron
Strong Lyman-alpha emission is a signpost of young stars and the absence of dust and thus indicates young galaxies. To find such a population of young galaxies at z=4.5 we started the Large Area...
De Breuck, Carlos, Van Breugel, Wil, Stanford, Adam, Rottgering, Huub, Miley, George, Stern, Daniel
We present optical and/or near-IR images of 128 ultra steep spectrum (USS) radio sources. Roughly half of the objects are identified in the optical images (R 94% are detected at K5). The major axes...
De Breuck, Carlos, Van Breugel, Wil, Stanford, Adam, Rottgering, Huub, Miley, George, Stern, Daniel
We present optical and/or near-IR images of 128 ultra steep spectrum (USS) radio sources. Roughly half of the objects are identified in the optical images (R 94% are detected at K5). The major axes...
Adam G. Riess, Peter E. Nugent, Ronald L. Gilliland, Brian P. Schmidt, John Tonry, Mark Dickinson, ...
We present photometric observations of an apparent Type Ia supernova (SN Ia) at a redshift of D1.7, the farthest SN observed to date. The supernova, SN 1997+, was discovered in a repeat observation...
First Results from the SPICES Survey (2000)
Stern, Daniel, Connolly, Andrew, Eisenhardt, Peter, Elston, Richard, Holden, Brad, Rosati, Piero, ...
We present first results from SPICES, the Spectroscopic, Photometric, Infrared-Chosen Extragalactic Survey. SPICES is comprised of four ~30 square arcminute high Galactic latitude fields with deep...
Spectroscopy of Ultra Steep Spectrum Radio Sources (2000)
De Breuck, Carlos, Van Breugel, Wil, Rottgering, Huub, Stern, Daniel, Miley, George, De Vries, Wim, ...
We present optical spectroscopy of 62 objects selected from several samples of ultra steep spectrum (USS) radio sources. 46 of these are from our primary catalog, consisting of 669 sources with radio...
Evidence Against a Redshift z>6 for the Galaxy STIS 123627+621755 (2000)
Stern, Daniel, Eisenhardt, Peter, Spinrad, Hyron, Dawson, Steve, Van Breugel, Wil, Dey, Arjun, ...
The identification of galaxies at extreme distances provides our most direct information on the earliest phases of galaxy formation. The distance implied by redshifts z > 5 makes this a challenging...
High-Redshift, Radio-Loud Quasars (2000)
I discuss two programs to study radio-loud quasars at high (z>4) redshift. Quasars are the most luminous, non-transient objects known and are observed to the earliest cosmic epochs. At lower...
Stanford, S. A., Stern, Daniel, Van Breugel, Wil, De Breuck, Carlos
We present a new sample of distant ultraluminous infrared galaxies. The sample was selected from a positional cross--correlation of the IRAS Faint Source Catalog with the FIRST database. Objects from...
Stellar Populations and Galaxy Morphology at High Redshift (2000)
Bunker, Andrew, Spinrad, Hyron, Stern, Daniel, Thompson, Rodger, Moustakas, Leonidas, Davis, Marc, ...
In this article we investigate the morphology and stellar populations of high-redshift galaxies through multi-waveband HST imaging and ground-based spatially-resolved spectroscopy. We study the...
First Results from the Large Area Lyman Alpha Survey (2000)
Rhoads, James E., Malhotra, Sangeeta, Dey, Arjun, Stern, Daniel, Spinrad, Hyron, Jannuzi, Buell
We report on a new survey for z=4.5 Lyman alpha sources, the Large Area Lyman Alpha (LALA) survey. Our survey achieves an unprecedented combination of volume and sensitivity by using narrow-band...
Discovery of a Color-Selected Quasar at z=5.50 (2000)
Stern, Daniel, Spinrad, Hyron, Eisenhardt, Peter, Bunker, Andrew J., Dawson, Steve, Stanford, S. A., ...
We present observations of RD J030117+002025, a quasar at z=5.50 discovered from deep, multi-color, ground-based observations covering 74 square arcmin. This is the most distant quasar or AGN...
One-Line Redshifts and Searches for High-Redshift Lyman-Alpha Emission (2000)
Stern, Daniel, Bunker, Andrew J., Spinrad, Hyron, Dey, Arjun
We report the serendipitous discovery of two objects close in projection with fairly strong emission lines at long wavelength (~9190 A). One (A) seems not to be hosted by any galaxy brighter than...
Manning, Curtis, Stern, Daniel, Spinrad, Hyron, Bunker, Andrew J.
In the course of our ongoing search for serendipitous high-redshift Lyman alpha (LyA) Emissionin deep archival Keck spectra, we discovered two very high equivalent width (W_{obs} ~ 450A, 2-sigma) LyA...
Radio Properties of z>4 Optically-Selected Quasars (2000)
Stern, Daniel, Djorgovski, S. G., Perley, R. A., DeCarvalho, Reinaldo R., Wall, J. V.
We report on two programs to address differential evolution between the radio-loud and radio-quiet quasar populations at high (z>4) redshift. Both programs entail studying the radio properties of...
Spectroscopy of Ultra Steep Spectrum Radio Sources (2000)
De Breuck, Carlos, Van Breugel, Wil, Rottgering, Huub, Stern, Daniel, Miley, George, De Vries, Wim, ...
We present optical spectroscopy of 62 objects selected from several samples of ultra steep spectrum (USS) radio sources. 46 of these are from our primary catalog, consisting of 669 sources with radio...
Spectroscopy of Ultra Steep Spectrum Radio Sources (2000)
De Breuck, Carlos, Van Breugel, Wil, Rottgering, Huub, Stern, Daniel, Miley, George, De Vries, Wim, ...
We present optical spectroscopy of 62 objects selected from several samples of ultra steep spectrum (USS) radio sources. 46 of these are from our primary catalog, consisting of 669 sources with radio...
Search Techniques for Distant Galaxies (1999)
How and when do galaxies form? Studies of the microwave background radiation reveal that the Universe is spectacularly homogenous at redshift z~1000. Observations of the local Universe reveal that by...
Manning, Curtis, Stern, Daniel, Spinrad, Hyron, Bunker, Andrew J.
In the course of our on-going search for serendipitous high-redshift LyA emission in deep archival Keck spectra, we discovered two LyA emission line candidates in a moderate dispersion...
Ultra-Steep Spectrum Radio Galaxies at Hy Redshifts (1999)
Van Breugel, Wil, De Breuck, Carlos, Stanford, Adam, Röttgering, Huub, Miley, George, Stern, Daniel, ...
Radio sources have traditionally provided convenient beacons for probing the early Universe. Hy Spinrad was among the first of the tenacious breed of observers who would attempt to obtain optical...
Lacy, Mark, Rawlings, Steve, Hill, Gary J., Bunker, Andrew J., Ridgway, Susan E., Stern, Daniel
We present the results of optical spectroscopy of two flux-density-limited samples of radio sources selected at frequencies of 38 and 151 MHz in the same region around the North Ecliptic Cap, the...
An X-ray Selected Galaxy Cluster at z=1.26 (1999)
Rosati, Piero, Stanford, S. A., Eisenhardt, Peter R., Elston, Richard, Spinrad, Hyron, Stern, Daniel, ...
We report the discovery of an X-ray luminous galaxy cluster at z=1.26. RXJ0848.9+4452 was selected as an X-ray cluster candidate in the ROSAT Deep Cluster Survey, on the basis of its spatial extent....
New High-Redshift Radio Galaxies from the MIT-Green Bank Catalog (1998)
Stern, Daniel, Dey, Arjun, Spinrad, Hyron, Maxfield, Leslie, Dickinson, Mark, Schlegel, David, ...
We present optical identifications and redshifts for seventeen new high-redshift radio sources. Fifteen of these sources are radio galaxies; the remaining two are high-redshift, steep-spectrum,...
Dey, Arjun, Spinrad, Hyron, Stern, Daniel, Graham, James R., Chaffee, Frederic H.
We report the discovery of Lyman alpha emission from a galaxy at z=5.34, the first object at z>5 with a spectroscopically confirmed redshift. The faint continuum emission (m(8000A)=27 AB mag),...
Stanford, S. A., Spinrad, Hyron, Stern, Daniel, Graham, James R.
We present deep near-IR images of high redshift radio galaxies obtained with NIRC on the Keck I telescope. In most cases, the near-IR data sample rest wavelengths at ~4000 Angstroms, free of strong...
Spectroscopy of z>3 Lyman-limit Galaxies (1998)
Spinrad, Hyron, Dey, Arjun, Stern, Daniel, Bunker, Andrew
We discuss the spectral character of Lyman-limit-selected, star-forming galaxies at z>3. The rest-frame UV spectra of these faint galaxies may show Ly-alpha in either absorption or emission, probably...
An IR-Selected Galaxy Cluster at z=1.27 (1997)
Stanford, S. A., Elston, Richard, Eisenhardt, Peter, Spinrad, Hyron, Stern, Daniel, Dey, Arjun
We report the discovery of a galaxy cluster at z=1.27. ClG J0848+4453 was found in a near-IR field survey as a high density region of objects with very red J-K colors. Optical spectroscopy of a...
LBDS 53W091: An Old red Galaxy at z=1.552 (1997)
Spinrad, Hyron, Dey, Arjun, Stern, Daniel, Dunlop, James, Peacock, John, Jimenez, Raul, ...
The weak radio source LBDS 53W091 is associated with a very faint (R approx. 24.5) red (R-K approx. 5.8) galaxy. Long spectroscopic integrations with the W. M. Keck telescope have provided an...
Antenna beam steering scanner. (1984)
Report (M.Eng.)--Pennsylvania State University, King of Prussia Center.
La Primera Relación: Madre-Hijo (1983)
Traducción de: the First Relationship: Infante and Mother
La Primera Relación: Madre-Hijo / D. Stern; tr. por: Alfredo Guerra Miralles. (1983)
Traducción de: the First Relationship: Infante and Mother
El extraño mundo de Jack = Tim Burton's The Nightmare before Christmas (1982)
Selick, Henry (realización), Thompson, Caroline (guión), Leighton, Eric (animación), Kozachik, Petef (fotografía), Webb, Stan (montaje), Elfman, Danny (música), ...
Edición especial
Thesis (Ph. D.)--University of Montana, 1972.