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...
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 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...
The Chandra COSMOS Survey. I. Overview and Point Source Catalog (2009)
Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra program that has imaged the central 0.5 deg^2 of the COSMOS field (centered at 10 ^h , +02 ^o ) with an effective exposure of ~160 ks,...
Ouchi, Masami, Mobasher, Bahram, Shimasaku, Kazuhiro, Ferguson, Henry C., Fall, S. Michael, Ono, Yoshiaki, ...
We present results of our large-area survey for z'-band dropout galaxies at z=7 in a 1568 arcmin^2 sky area covering the SDF and GOODS-N fields. Combining our ultra-deep Subaru/Suprime-Cam z'- and...
Carter, David, Smith, Daniel J. B., Percival, Susan M., Baldry, Ivan K., Collins, Christopher A., James, Philip A., ...
We present a comprehensive analysis of the ability of current stellar population models to reproduce the optical (ugriz) and near infra-red (JHK) colours of a small sample of well-studied nearby...
The Chandra COSMOS Survey, I: Overview and Point Source Catalog (2009)
Elvis, Martin, Civano, Francesca, Vignali, Cristian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...
The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8 Ms, Chandra} program that has imaged the central 0.5 sq.deg of the COSMOS field (centered at 10h, +02deg) with an effective exposure of ~160ksec,...
A Deep VLA Radio Continuum Study of the Core and Outskirts of the Coma Cluster (2009)
Miller, Neal A., Hornschemeier, Ann E., Mobasher, Bahram
We present deep 1.4GHz Very Large Array (VLA) radio continuum observations of two ~half square degree fields in the Coma cluster of galaxies. The two fields, "Coma 1" and "Coma 3," correspond to the...
The Radio Luminosity Function and Galaxy Evolution in the Coma Cluster (2009)
Miller, Neal A., Hornschemeier, Ann E., Mobasher, Bahram, Bridges, Terry J., Hudson, Michael J., Marzke, Ronald O., ...
We investigate the radio luminosity function (RLF) and radio source population for two fields within the Coma cluster of galaxies. Our VLA data reach down to log(L) = 20.23 W/Hz for Coma, and we...
Relation between stellar mass and star-formation activity in galaxies (2009)
Mobasher, Bahram, Dahlen, Tomas, Hopkins, Andrew, Scoville, Nick Z., Capak, Peter, Rich, R. Michael, ...
For a mass-selected sample of 66544 galaxies with photometric redshifts (z phot) from the Cosmic Evolution Survey (COSMOS), we examine the evolution of star-formation activity as a function of...
The Chandra COSMOS survey - I. Overview and point source catalog (2009)
Elvis, Martin, Civano, Francesca, Vignali, Christian, Puccetti, Simonetta, Fiore, Fabrizio, Cappelluti, Nico, ...
Supernova acceleration probe : investigating photometric redshift optimization (2008)
Dahlen, Tomas, Mobasher, Bahram
The aim of this paper is to investigate ways to optimize the accuracy of photometric redshifts for a Supernova Acceleration Probe (SNAP)-like mission. We focus on how the accuracy of the photometric...
Relation Between Stellar Mass and Star Formation Activity in Galaxies (2008)
Mobasher, Bahram, Dahlen, T., Hopkins, A., Scoville, N. Z., Capak, P., Rich, R. M., ...
For a mass-selected sample of 66544 galaxies with photometric redshifts from the Cosmic Evolution Survey (COSMOS), we examine the evolution of star formation activity as a function of stellar mass in...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry, Puzia, Thomas, Aguerri, Alfonso, ...
Also archived in: arXiv:0801.3745 v1 Jan 24 2008
The Phoenix Deep Survey: Extremely Red Galaxies and Cluster Candidates (2008)
Smith, Anthony G., Hopkins, Andrew M., Hunstead, Richard W., Schmidt, Samuel J., Afonso, José, Georgakakis, Antonis E., ...
We present the results of a study of a sample of 375 Extremely Red Galaxies (ERGs) in the Phoenix Deep Survey, 273 of which constitute a subsample which is 80% complete to K_s = 18.5 over an area of...
Evolution of the bar fraction in COSMOS: quantifying the assembly of the Hubble sequence (2008)
Sheth, Kartik, Elmegreen, Debra Meloy, Elmegreen, Bruce G., Capak, Peter, Abraham, Roberto G., Athanassoula, E., ...
We have analyzed the redshift-dependent fraction of galactic bars over 0.2 < z < 0.84 in 2157 luminous face-on spiral galaxies from the COSMOS 2 deg^2 field. Our sample is an order of magnitude...
Ray Norris, Enno Middelberg, José Afonso, Brian Boyle, Paolo Ciliegi, Tim Cornwell, ...
radio contours overlaid on the
Deep ATLAS radio observations of the CDFS-SWIRE field (2008)
Ray P. Norris, José Afonso, Brian J. Boyle, Paolo Ciliegi, Scott M. Croom, Minh T. Huynh, ...
We present the first results from the Australia Telescope Large Area Survey (ATLAS), which consist of deep radio observations of a 3.7 square degree field surrounding the Chandra Deep Field South,...
The HST/ACS Coma Cluster Survey: I - Survey Objectives and Design (2008)
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma cluster (Abell 1656). The survey was designed to...
The faint-end slopes of galaxy luminosity functions in the COSMOS field (2008)
Liu, Charles T., Capak, Peter, Mobasher, Bahram, Paglione, Timothy A. D., Rich, R. Michael, Scoville, Nicholas Z., ...
We examine the faint-end slope of the rest-frame V-band luminosity function (LF), with respect to galaxy spectral type, of field galaxies with redshift z < 0.5, using a sample of 80,820 galaxies with...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...
Evolution of the bar fraction in COSMOS: quantifying the assembly of the Hubble sequence (2008)
Sheth, Kartik, Elmegreen, Debra Meloy, Elmegreen, Bruce G., Capak, Peter, Abraham, Roberto G., Athanassoula, E., ...
We have analyzed the redshift-dependent fraction of galactic bars over 0.2
Carter, David, Goudfrooij, Paul, Mobasher, Bahram, Ferguson, Henry C., Puzia, Thomas H., Aguerri, Alfonso L., ...
We describe the HST ACS Coma Cluster Treasury survey, a deep two-passband imaging survey of one of the nearest rich clusters of galaxies, the Coma Cluster (Abell 1656). The survey was designed to...
Evolution of the Bar Fraction in COSMOS: Quantifying the Assembly of the Hubble Sequence (2007)
Sheth, Kartik, Elmegreen, Debra Meloy, Elmegreen, Bruce G., Capak, Peter, Abraham, Roberto G., Athanassoula, E., ...
We have analyzed the redshift-dependent fraction of galactic bars over 0.2
Huynh, Minh T., Frayer, David T., Mobasher, Bahram, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn
We present the IR luminosity function derived from ultradeep 70 μm imaging of the GOODS-North field. The 70 μm observations are longward of the PAH and silicate features which complicate work in...
The Faint End Slopes Of Galaxy Luminosity Functions In The COSMOS 2-Square Degree Field (2007)
Liu, Charles T., Capak, Peter, Mobasher, Bahram, Paglione, Timothy A. D., Rich, R. Michael, Scoville, Nicholas Z., ...
We examine the faint-end slope of the rest-frame V-band luminosity function (LF), with respect to galaxy spectral type, of field galaxies with redshift z
Huynh, Minh T., Frayer, David T., Mobasher, Bahram, Dickinson, Mark, Chary, Ranga-Ram, Morrison, Glenn
We present the IR luminosity function derived from ultra-deep 70 micron imaging of the GOODS-North field. The 70 micron observations are longward of the PAH and silicate features which complicate...
Redshifts of Emission-Line Objects in the Hubble Ultra Deep Field (2007)
Xu, Chun, Pirzkal, Norbert, Malhotra, Sangeeta, Rhoads, James E., Mobasher, Bahram, Daddi, Emanuele, ...
We present redshifts for 115 emission-line objects in the Hubble Ultra Deep Field identified through the Grism ACS Program for Extragalactic Science (GRAPES) project using the slitless grism...
Evidence for the Evolution of Young Early-Type Galaxies in the GOODS/CDF-S Field (2007)
Puzia, Thomas H., Mobasher, Bahram, Goudfrooij, Paul
We have developed an efficient photometric technique for identifying young early-type galaxy candidates using a combination of photometric redshifts, spectral-type classification, and...
COSMOS: 3D weak lensing and the growth of structure (2007)
Massey, Richard, Rhodes, Jason, Leauthaud, Alexie, Capak, Peter, Ellis, Richard, Koekemoer, Anton, ...
We present a three dimensional cosmic shear analysis of the Hubble Space Telescope COSMOS survey, the largest ever optical imaging program performed in space. We have measured the shapes of galaxies...
Dark matter maps reveal cosmic scaffolding (2007)
Massey, Richard, Rhodes, Jason, Ellis, Richard, Scoville, Nick, Leauthaud, Alexie, Finoguenov, Alexis, ...
Ordinary baryonic particles (such as protons and neutrons) account for only one-sixth of the total matter in the Universe. The remainder is a mysterious "dark matter" component, which does not...
Redshifts of Emission Line Objects in the Hubble Ultra Deep Field (2007)
Xu, Chun, Pirzkal, Norbert, Malhotra, Sangeeta, Rhoads, James E., Mobasher, Bahram, Daddi, Emanuele, ...
We present redshifts for 115 emission line objects in the Hubble Ultra Deep Field (HUDF) identified through the GRism ACS Program for Extragalactic Science (GRAPES) project using the slitless grism...
Dark matter maps reveal cosmic scaffolding (2007)
Massey, Richard, Rhodes, Jason, Ellis, Richard, Scoville, Nick, Leauthaud, Alexie, Finoguenov, Alexis, ...
Ordinary baryonic particles (such as protons and neutrons) account for only one-sixth of the total matter in the Universe. The remainder is a mysterious "dark matter" component, which does not...
COSMOS: 3D weak lensing and the growth of structure (2007)
Massey, Richard, Rhodes, Jason, Leauthaud, Alexie, Capak, Peter, Ellis, Richard, Koekemoer, Anton, ...
We present a three dimensional cosmic shear analysis of the Hubble Space Telescope COSMOS survey, the largest ever optical imaging program performed in space. We have measured the shapes of galaxies...
Dark matter maps reveal cosmic scaffolding (2007)
Massey, Richard, Rhodes, Jason, Ellis, Richard, Scoville, Nick, Leauthaud, Alexie, Finoguenov, Alexis, ...
Redshifts of emission-line objects in the Hubble Ultra Deep Field (2007)
Xu, Chun, Pirzkal, Norbert, Malhotra, Sangeeta, Rhoads, James E., Mobasher, Bahram, Daddi, Emanuele, ...
We present redshifts for 115 emission-line objects in the Hubble Ultra Deep Field identified through the Grism ACS Program for Extragalactic Science (GRAPES) project using the slitless grism...
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,...
Deep ATLAS radio observations of the CDFS-SWIRE field (2006)
Norris, Ray P., Afonso, Jose, Appleton, Phil N., Boyle, Brian J., Ciliegi, Paolo, Croom, Scott M., ...
We present the first results from the Australia Telescope Large Area Survey (ATLAS), which consist of deep radio observations of a 3.7 square degree field surrounding the Chandra Deep Field South,...
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...
Dahlen, Tomas, Mobasher, Bahram, Dickinson, Mark, Ferguson, Henry C., Giavalisco, Mauro, Kretchmer, Claudia, ...
Using the multiwavelength photometric and spectroscopic data covering the CDF-S obtained within the GOODS, we investigate the rest-frame UV properties of galaxies to z~2.2, including the evolution of...
Levan, Andrew, Fruchter, Andrew, Rhoads, James, Mobasher, Bahram, Tanvir, Nial, Gorosabel, Javier, ...
We present near-infrared (nIR) and optical observations of the afterglow of GRB 030115. Discovered in an infrared search at Kitt Peak 5 hours after the burst trigger, this afterglow is amongst the...
Sullivan, Mark, Treyer, Marie, Ellis, Richard, Mobasher, Bahram
(abridged) We present panoramic u' and optical ground-based imaging observations of a complete sample of low-redshift (0
De Jong, Roelof S., Arribas, Santiago, Barker, Elizabeth, Bergeron, Louis E., Bohlin, Ralph C., Calzetti, Daniela, ...
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 Cooling...
On the cross-correlation of sub-mm sources and optically-selected galaxies (2006)
Blake, Chris, Pope, Alexandra, Scott, Douglas, Mobasher, Bahram
Bright sub-mm galaxies are expected to arise in massive highly-biased haloes, and hence exhibit strong clustering. We argue that a valuable tool for measuring these clustering properties is the...
On the cross-correlation of sub-mm sources and optically selected galaxies (2006)
Blake, Chris, Pope, Alexandra, Scott, Douglas, Mobasher, Bahram
Bright submillimetre (sub-mm) galaxies are expected to arise in massive highly biased haloes, and hence exhibit strong clustering. We argue that a valuable tool for measuring these clustering...
On the cross-correlation of sub-mm sources and optically selected galaxies (2006)
Blake, Chris, Pope, Alexandra, Scott, Douglas, Mobasher, Bahram
Bright submillimetre (sub-mm) galaxies are expected to arise in massive highly biased haloes, and hence exhibit strong clustering. We argue that a valuable tool for measuring these clustering...
Narrow-Band Survey of the GOODS Fields: Search for Lyman-Alpha Emitters at z = 5.7 (2005)
Ajiki, Masaru, Mobasher, Bahram, Taniguchi, Yoshiaki, Shioya, Yasuhiro, Nagao, Tohru, Murayama, Takashi, ...
We present results from optical narrow-band lambda_c = 8150A ~ and Delta lambda = 120A) observations of the Great Observatories Origins Deep Survey (GOODS) fields, using Suprime-Cam on the Subaru...
Photometric Scaling Relations for Bulges of Galaxies (2005)
Ravikumar, C. D., Barway, Sudhanshu, Kembhavi, Ajit, Mobasher, Bahram, Kuriakose, V. C.
We study the photometric parameters of the bulges of galaxies of different Hubble types including ellipticals, lenticulars, early and late type spirals and early type dwarf galaxies. Analyzing the...
Dahlen, Tomas, Mobasher, Bahram, Somerville, Rachel S., Moustakas, Leonidas A., Dickinson, Mark, Ferguson, Henry C., ...
Using Hubble Space Telescope and ground-based U through K- band photometry from the Great Observatories Origins Deep Survey (GOODS), we measure the evolution of the luminosity function and luminosity...
Pope, Alexandra, Borys, Colin, Scott, Douglas, Conselice, Christopher, Dickinson, Mark, Mobasher, Bahram
We present a new sub-mm Super-map in the HDF-North region (GOODS-North field), containing 40 statistically robust sources at 850 microns. This map contains additional data, and several new sources,...
The Phoenix Deep Survey: Optical and near infrared imaging catalogs (2004)
Sullivan, Mark, Hopkins, Andrew, Afonso, Jose, Georgakakis, Antonis, Chan, Ben, Cram, Lawrence, ...
The Phoenix Deep Survey is a multi-wavelength galaxy survey based on deep 1.4 GHz radio imaging (Hopkins et al., 2003). The primary goal of this survey is to investigate the properties of star...
Optical and near-infrared properties of submillimetre galaxies in the GOODS-North field (2004)
Pope, Alexandra, Scott, Douglas, Borys, Colin, Conselice, Christopher, Dickinson, Mark, Mobasher, Bahram
We investigate the photometric redshift distribution, colours and morphologies of a large sample of submillimetre sources in the GOODS-North region. With the depth achieved by the deep ACS images,...
High Redshift Supernova Rates (2004)
Dahlen, Tomas, Strolger, Louis-Gregory, Riess, Adam G., Mobasher, Bahram, Chary, Ranga-Ram, Conselice, Christopher J., ...
We use a sample of 42 supernovae detected with the Advanced Camera for Surveys on-board the Hubble Space Telescope as part of the Great Observatories Origins Deep Survey to measure the rate of core...
Riess, Adam G., Strolger, Louis-Gregory, Tonry, John, Casertano, Stefano, Ferguson, Henry C., Mobasher, Bahram, ...
We have discovered 16 Type Ia supernovae (SNe Ia) with the Hubble Space Telescope (HST) and have used them to provide the first conclusive evidence for cosmic deceleration that preceded the current...
Jogee, Shardha, Barazza, Fabio D., Rix, Hans-Walter, Shlosman, Isaac, Barden, Marco, Wolf, Christian, ...
One-third of present-day spirals host optically visible strong bars that drive their dynamical evolution. However, the fundamental question of how bars evolve over cosmological times has yet to be...
Two formation paths for cluster dwarf galaxies? (2003)
Poggianti, Bianca M., Kashikawa, Nobunari, Bridges, Terry, Mobasher, Bahram, Komiyama, Yutaka, Carter, Dave, ...
A surprising result of our recent spectroscopic survey of galaxies in the Coma cluster has been the discovery of a possible bimodal distribution in the metallicities of faint galaxies at $M_B>-17$....
Sullivan, Mark, Treyer, Marie, Ellis, Richard, Mobasher, Bahram
(abridged) We present panoramic u' and optical ground-based imaging observations of a complete sample of low-redshift (0
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,...
Structure and Evolution of Starburst and Normal Galaxies (2003)
Mobasher, Bahram, Jogee, Shardha, Dahlen, Tomas, De Mello, Duilia, Conselice, Christopher, Grogin, Norman, ...
We study the rest-frame morphology and structural properties of optically selected starburst galaxies at redshift z < 1, using multi-waveband (BViz) high resolution images taken by the Advanced...
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...
Observing the Formation of the Hubble Sequence in the Great Observatories Origins Deep Survey (2003)
Conselice, Christopher J., Grogin, Norman A., Jogee, Shardha, Lucas, Ray A., Dahlen, Tomas, De Mello, Duilia, ...
Understanding the physical formation of the Hubble sequence remains one of the most important unsolved astrophysical problems. Searches for proto-disks and proto-ellipticals can now be effectively...
Riess, Adam G., Strolger, Louis-Gregory, Tonry, John, Tsvetanov, Zlatan, Casertano, Stefano, Ferguson, Henry C., ...
We present discoveries of SNe Ia at z > 1 and the photometric diagnostic used to discriminate them from other types of SNe detected during the GOODS Hubble Space Telescope Treasury program with the...
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Mobasher, Bahram, Colless, Matthew, Carter, David, Poggianti, Bianca, Bridges, Terry, Kranz, K., ...
A large spectroscopic survey is constructed of galaxies in the Coma cluster. The survey covers a wide area (1 deg$^2$) to deep magnitudes (R ~ 19.5), covering both the core (high density) and...
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Sullivan, Mark, Treyer, Marie, Ellis, Richard, Mobasher, Bahram
(abridged) We present panoramic u' and optical ground-based imaging observations of a complete sample of low-redshift (0
Sullivan, Mark, Treyer, Marie, Ellis, Richard, Mobasher, Bahram
(abridged) We present panoramic u' and optical ground-based imaging observations of a complete sample of low-redshift (0
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Mobasher, Bahram, Colless, Matthew, Carter, Dave, Poggianti, Bianca M., Bridges, Terry J., Krantz, Kelly, ...
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma cluster: giants versus dwarfs (2002)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
not available
Substructure in the Coma Cluster: Giants vs Dwarfs (2001)
Edwards, Scott A., Colless, Matthew, Bridges, Terry J., Carter, Dave, Mobasher, Bahram, Poggianti, Bianca M.
The processes that form and shape galaxy clusters, such as infall, mergers and dynamical relaxation, tend to generate distinguishable differences between the distributions of a cluster's giant and...
Tracing cosmic evolution with the Coma cluster (2001)
Poggianti, Bianca M., Bridges, Terry J., Mobasher, Bahram, Carter, Dave
We summarize here the first results of a new spectroscopic survey of galaxies in the Coma cluster with -20.5 < M_B < -14. Differences between the last epoch of star formation (SF) activity in S0 and...
Sullivan, Mark, Mobasher, Bahram, Chan, Ben, Cram, Lawrence, Ellis, Richard, Treyer, Marie, ...
We present results from a decimetric radio survey undertaken with the Very Large Array as part of a longer term goal to inter-compare star formation and dust extinction diagnostics, on a galaxy by...
ISO Observations of Star-forming Galaxies (2001)
Mobasher, Bahram, Afonso, Jose, Cram, Lawrence
The Infrared Space Observatory (ISO) is used to carry out mid-IR (7 and 15 micron) and far-IR (90 micron) observations of a sample of star-forming sub-mJy radio sources. By selecting the sample at...
The Effect of Dust on Photometric Redshift Measurement; A Self-consistent Technique (2000)
Mobasher, Bahram, Mazzei, Paola
A new method is developed for estimating photometric redshifts to galaxies, using realistic template SEDs, extending over four decades in wavelength (i.e. from 0.05 micron to 1 mm). The template SEDs...
HST imaging survey of sub-mJy star-forming galaxies I: morphologies at z ~ 0.2 (2000)
Serjeant, Stephen, Mobasher, Bahram, Gruppioni, Carlotta, Oliver, Seb
We present the first results of our HST WFPC2 F814W snapshot imaging survey, targeting virtually all sub-mJy decimetric radio-selected star-forming galaxies. The radio selection at ~1 GHz is free...
The Behind The Plane Survey - source selection, identifications and completeness (2000)
Saunders, Will, D'Mellow, Kenton, Tully, Brent, Carrasco, Esperanza, Mobasher, Bahram, Maddox, Steve, ...
We present details of the Behind The Plane survey of IRAS galaxies, which extends the PSCz survey to cover the 93% of the sky with complete and reliable IRAS data from the Point Source Catalog. At...
The IRAS view of the Local Universe (2000)
Saunders, Will, D'Mellow, Kenton, Valentine, Helen, Tully, Brent, Carrasco, Esperanza, Mobasher, Bahram, ...
We summarise results for the predicted density and peculiar velocity fields from the PSCz survey. We have used a generalisation of the Path Interchange Zeldovich Approximation to determine the...
Mobasher, Bahram, James, Phil. A.
Near-IR spectra for a sample of 31 elliptical galaxies in the Coma cluster are obtained. The galaxies are selected to be ellipticals (no lenticulars), with a large spatial distribution, covering both...
A near infrared photometric plane for ellipticals and bulges of spirals (2000)
Khosroshahi, Habib G., Wadadekar, Yogesh, Kembhavi, Ajit, Mobasher, Bahram
We report the existence of a single plane in the space of global photometric parameters describing elliptical galaxies and the bulges of early type spiral galaxies. The three parameters which define...
The Behind The Plane Survey (1999)
Saunders, Will, D'Mellow, Kenton, Tully, Brent, Mobasher, Bahram, Maddox, Steve, Sutherland, Will, ...
We have extended the PSCz to cover 93% of the sky, the practical limit for any catalogue based on the Point Source Catalog. The galaxy identifications are complete, and the core of the Great...
James, Philip, Mobasher, Bahram
Near-infrared spectra of 50 elliptical galaxies in the Pisces, A2199 and A2634 clusters, and in the general field, have been obtained. The strength of the CO (2.3 micron) absorption feature in these...
Galaxy Clustering at z ~ 2 and Halo Radii (1999)
Roukema, Boudewijn F., Valls-Gabaud, David, Mobasher, Bahram, Bajtlik, Stanislaw
The amplitude of the angular two-point galaxy correlation function w(\theta) for galaxies at z~2 is estimated for galaxies in the Hubble Deep Field by using a U < 27 complete sub-sample. (i) It is...
Evolution of the near-infrared luminosity function in rich galaxy clusters (1998)
Trentham, Neil, Mobasher, Bahram
We present the K-band (2.2 microns) luminosity functions of the X-ray luminous clusters MS1054-0321 (z=0.82), MS0451-0305 (z=0.55), Abell 963 (z=0.206), Abell 665 (z=0.182) and Abell 1795 (z=0.063)...
The discovery of a giant debris arc in the Coma Cluster (1997)
Trentham, Neil, Mobasher, Bahram
We present the discovery a giant low surface-brightness arc, of length luminous matrix with surface-brightness mu_B < 26.5 mag arcsec^{-2} and a number of embedded condensations. It is not associated...
Near-infrared luminosity function and colours of dwarf galaxies in the Coma Cluster (1997)
Mobasher, Bahram, Trentham, Neil
We present K-band observations of the low-luminosity galaxies in the Coma cluster, which are responsible for the steep upturn in the optical luminosity function at M_R ~ -16, discovered recently. The...