Dynamics of Lyman Break Galaxies and Their Host Halos (2009)
Lowenthal, James D., Koo, David C., Simard, Luc, Van Kampen, Eelco
We present deep two-dimensional spectra of 22 candidate and confirmed Lyman break galaxies (LBGs) at redshifts 2
Galaxies probing galaxies: cool halo gas from a z = 0.47 post-starburst galaxy (2009)
Rubin, Kate H. R., Prochaska, J. Xavier, Koo, David C., Phillips, Andrew C., Weiner, Benjamin J.
We study the cool gas around a galaxy at z = 0.4729 using Keck/LRIS spectroscopy of a bright (B = 21.7) background galaxy at z = 0.6942 at a transverse distance of 16.5/h_70 kpc. The background...
AEGIS: The Clustering of X-ray AGN Relative to Galaxies at z~1 (2009)
Coil, Alison L., Georgakakis, Antonis, Newman, Jeffrey A., Cooper, Michael C., Croton, Darren, Davis, Marc, ...
We measure the clustering of non-quasar X-ray AGN at z=0.7-1.4 in the AEGIS field. Using the cross-correlation of 113 Chandra-selected AGN, with a median log L_X=42.8 erg s^-1, with ~5,000 DEEP2...
AEGIS: the clustering of x-ray active galactic nucleus relative to galaxies at z similar to 1 (2009)
Coil, Alison L., Georgakakis, Antonis, Newman, Jeffrey A., Cooper, Michael C., Croton, Darren, Davis, Marc, ...
We measure the clustering of nonquasar X-ray active galactic nucleus (AGN) at z = 0.7–1.4 in the AEGIS field. Using the cross-correlation of 113 Chandra-selected AGN, with a median log LX =...
Spatially Resolved Stellar Populations of Eight GOODS-South AGN at z~1 (2008)
Ammons, S. Mark, Melbourne, Jason, Max, Claire E., Koo, David C., Rosario, David J. V.
We present a pilot study of the stellar populations of 8 AGN hosts at z~1 and compare to (1) lower redshift samples and (2) a sample of nonactive galaxies of similar redshift. We utilize K' images in...
Inspiralling Supermassive Black Holes: A New Signpost for Galaxy Mergers (2008)
Comerford, Julia M., Gerke, Brian F., Newman, Jeffrey A., Davis, Marc, Yan, Renbin, Cooper, Michael C., ...
Because structure in the Universe is built up through galaxy mergers and nearly all galaxies host a central supermassive black hole (SMBH), some galaxies should possess two SMBHs near their centers...
The DEEP2 Redshift Survey: Lyman Alpha Emitters in the Spectroscopic Database (2008)
Sawicki, Marcin, Lemaux, Brian C., Guhathakurta, Puragra, Kirby, Evan N., Konidaris, Nicholas P., Martin, Crystal L., ...
We present the first results of a search for Lyman-alpha emitters (LAEs) in the DEEP2 spectroscopic database that uses a search technique that is different from but complementary to traditional...
The DEEP2 Galaxy Redshift Survey: Environments of Poststarburst Galaxies at z~0.1 and z~0.8 (2008)
Yan, Renbin, Newman, Jeffrey A., Faber, S. M., Coil, Alison L., Cooper, Michael C., Davis, Marc, ...
Postststarburst (K+A) galaxies are candidates for galaxies in transition from a star-forming phase to a passively-evolving phase. We have spectroscopically identified large samples of K+A galaxies...
Ubiquitous outflows in DEEP2 spectra of star-forming galaxies at z=1.4 (2008)
Weiner, Benjamin J., Coil, Alison L., Prochaska, Jason X., Newman, Jeffrey A., Cooper, Michael C., Bundy, Kevin, ...
Galactic winds are a prime suspect for the metal enrichment of the intergalactic medium and may have a strong influence on the chemical evolution of galaxies and the nature of QSO absorption line...
AEGIS: The Nature of the Host Galaxies of Low-ionization Outflows at z < 0.6 (2008)
Sato, Taro, Martin, Crystal L., Noeske, Kai G., Koo, David C., Lotz, Jennifer M.
We report on a S/N-limited search for low-ionization gas outflows in the spectra of the 0.11 < z < 0.54 objects in the EGS portion of the DEEP2 survey. Doppler shifts from the host galaxy redshifts...
Lin, Lihwai, Patton, David R., Koo, David C., Casteels, Kevin, Conselice, Christopher J., Faber, S. M., ...
We study the redshift evolution of galaxy pair fractions and merger rates for different types of galaxies using kinematic pairs selected from the DEEP2 Redshift Survey. By parameterizing the...
Pre-DEIMOS Pilot Surveys for DEEP (2008)
DEEP is a multi-institutional program designed to undertake a major spectroscopic survey of 10,000 field galaxies to I 23 with a new instrument (DEIMOS) on the Keck II 10-m telescope. The scientific...
Coil, Alison L., Newman, Jeffrey A., Croton, Darren J., Cooper, Michael C., Davis, Marc, Faber, S. M., ...
We present measurements of the color and luminosity dependence of galaxy clustering at z∼ 1 in the DEEP2 Galaxy Redshift Survey. Using volume-limited subsamples in bins of both color and...
The Halpha-based Star Formation Rate Density of the Universe at z=0.84 (2007)
Villar, Víctor, Gallego, Jesús, Pérez-González, Pablo G., Pascual, Sergio, Noeske, Kai, Koo, David C., ...
We present the results of an Halpha near-infrared narrow-band survey searching for star-forming galaxies at redshift z=0.84. This work is an extension of our previous narrow-band studies in the...
Keck Spectroscopy of Redshift (2007)
Galaxies In The, James D. Lowenthal, David C. Koo, Andrew C. Phillips, S. M. Faber, Nicole P. Vogt, ...
We have obtained spectra with the 10-m Keck telescope of a sample of 24 galaxies having colors consistent with star-forming galaxies at redshifts 2 ! z ! 4:5 in the Hubble Deep Field (HDF). Eleven of...
DISTANT COMPACTNARROW EMISSION LINE GALAXIES AS PROGENITORS OF TODAY'S SPHEROIDAL GALAXIES (2007)
Dwarf galaxies at high redshifts are important to study for a variety of reasons. By dwarf, we mean galaxies with low-mass, though galaxies with low-luminosities or small sizes are also commonly...
DEEP is a multi-institutional program designed to undertake a major new spectroscopic survey of faint field galaxies with the Keck II 10-m telescope. The scientific goals are broad and include...
Photometric Redshifts: A Perspective from an Old-Timer (2007)
I review the early history of photometric redshifts; specify a working de nition that encompasses a broader range of approaches than commonly adopted; discuss the pros and cons of template tting...
Dynamics Of Distant Normal Galaxies (2007)
Masses of galaxies are beginning to be measured systematically at redshifts z > 0:3.
Science with the Hubble Space Telescope -- II (2007)
Space Telescope Science, P. Benvenuti, F. D. Macchetto, E. J. Schreier, David C. Koo
We summarize the new forms of information that HST offers to tackle the nature of faint blue galaxies and the importance of complementary spectra from the Keck Telescope. As an example of the...
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...
The DEEP2 Galaxy Redshift Survey: Color and Luminosity Dependence of Galaxy Clustering at z~1 (2007)
Coil, Alison L., Newman, Jeffrey A., Croton, Darren, Cooper, Michael C., Davis, Marc, Faber, S. M., ...
We present measurements of the color and luminosity dependence of galaxy clustering at z~1 in the DEEP2 Galaxy Redshift Survey. Using volume-limited subsamples in bins of both color and luminosity,...
Cooper, Michael C., Newman, Jeffrey A., Weiner, Benjamin J., Yan, Renbin, Willmer, Christopher N. A., Bundy, Kevin, ...
Using galaxy samples drawn from the Sloan Digital Sky Survey and the DEEP2 Galaxy Redshift Survey, we study the relationship between star formation and environment at z ~ 0.1 and z ~ 1. We estimate...
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...
CATS: CfAO Treasury Survey of distant galaxies, supernovae, and AGN's (2007)
Koo, David C., Melbourne, Jason, Max, Claire, Metevier, Anne, Ammons, Mark, Larkin, James E., ...
The NSF Science and Technology Center for Adaptive Optics (CfAO) is supporting a major scientific legacy project called the CfAO Treasury Survey (CATS). CATS is obtaining near-infrared AO data in...
The Stellar Mass Tully-Fisher Relation to z=1.2 from AEGIS (2007)
Kassin, Susan A., Weiner, Benjamin J., Faber, S. M., Koo, David C., Lotz, Jennifer M., Diemand, Jürg, ...
We combine newly measured rotation velocities, velocity dispersions, and stellar masses to construct stellar mass Tully-Fisher relations (M*TFRs) for 544 galaxies with strong emission lines at 0.1
DEEP after 15 years: lessons for GTC (2007)
DEEP2 is a major new Keck spectroscopic survey of about 35,000 field galaxies and aims to provide a detailed census and map of the cosmos at redshift z 1. We present an overview of DEEP2 and its...
AEGIS: Chandra observation of DEEP2 galaxy groups and clusters (2007)
Fang, Taotao, Gerke, Brian F., Davis, David S., Newman, Jeffrey A., Davis, Marc, Nandra, Kirpal, ...
We present a 200 ks Chandra observation of seven spectroscopically selected, high-redshift (0.75 < z < 1.03) galaxy groups and clusters discovered by the DEEP2 Galaxy Redshift Survey in the...
The all-wavelength extended groth strip international survey (AEGIS) data sets (2007)
Davis, Michael A., Guhathakurta, Puragra, Konidaris, Nick P., Newman, Jeffrey A., Ashby, Matthew L. N., Biggs, Andrew 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...
The DEEP2 galaxy redshift survey: the evolution of the blue fraction in groups and the field (2007)
Gerke, Brian F., Newman, Jeffrey A., Faber, S. M., Cooper, MIchael C., Croton, Darren J., Davis, Marc, ...
We explore the behaviour of the blue galaxy fraction over the redshift range 0.75 ≤z≤ 1.3 in the DEEP2 Survey, both for field galaxies and for galaxies in groups. The primary aim is to...
AEGIS: the color-magnitude relation for X-ray-selected active galactic nuclei (2007)
Nandra, Kirpal, Georgakakis, Antonis, Willmer, Christopher N., Cooper, Michael C., Croton, D. J., Davis, Michael A., ...
We discuss the relationship between rest-frame color and optical luminosity for X-ray sources in the range 0.6 < z < 1.4 selected from the Chandra survey of the Extended Groth Strip. These...
Cooper, Michael C., Newman, Jeffery A., Coil, Alison L., Croton, Darren J., Gerke, Brian F., Yan, Renbin, ...
Using a sample of 19 464 galaxies drawn from the DEEP2 Galaxy Redshift Survey, we study the relationship between galaxy colour and environment at 0.4 < z < 1.35 . We find that the fraction of...
Conroy, Charlie, Prada, Francisco, Newman, Jeffrey A., Croton, Darren, Coil, Alison L., Conselice, Christopher J., ...
We measure the evolution in the virial mass-to-light ratio (M 200/LB) and virial-to-stellar mass ratio (M 200/M*) for isolated ∼L* galaxies between z ∼ 1 and z ∼ 0 by combining data...
The stellar mass Tully-Fisher relation to z = 1.2 from AEGIS (2007)
Kassin, Susan A., Weiner, Bemjamin J., Faber, S. M., Koo, David C., Lotz, Jennifer M., Diemand, Jorg, ...
We combine newly measured rotation velocities, velocity dispersions, and stellar masses to construct stellar mass Tully-Fisher relations (M*TFRs) for 544 galaxies with strong emission lines at 0.1...
Schiavon, Ricardo P., Faber, S.M., Konidaris, Nicholas, Graves, Genevieve, Willmer, Christopher N.A., Weiner, Benjamin J., ...
The DEEP2 Galaxy Redshift Survey: AEGIS observations of a Dual AGN at z = 0.7 (2006)
Newman, Jeffrey A., Lotz, Jennifer, Yan, Renbin, Barmby, P., Coil, Alison L., ...
The DEEP2 galaxy redshift survey: the evolution of the blue fraction in groups and the field (2006)
Gerke, Brian F., Newman, Jeffrey A., Faber, S. M., Cooper, Michael C., Croton, Darren J., Davis, Marc, ...
We explore the behavior of the blue galaxy fraction over the redshift range 0.75
The DEEP2 Galaxy Redshift Survey: AEGIS Observations of a Dual AGN at z=0.7 (2006)
Gerke, Brian F., Newman, Jeffrey A., Lotz, Jennifer, Yan, Renbin, Barmby, P., Coil, Alison L., ...
We present evidence for a dual Active Galactic Nucleus (AGN) within an early-type galaxy at z=0.709 in the Extended Groth Strip. The galaxy lies on the red sequence, with absolute magnitude M_B=-21.0...
The DEEP2 Galaxy Redshift Survey: Evolution of the Color-Density Relation at 0.4 < z < 1.35 (2006)
Cooper, Michael C., Newman, Jeffrey A., Coil, Alison L., Croton, Darren J., Gerke, Brian F., Yan, Renbin, ...
Using a sample of 19,464 galaxies drawn from the DEEP2 Galaxy Redshift Survey, we study the relationship between galaxy color and environment at 0.4 < z < 1.35. We find that the fraction of galaxies...
Lin, Lihwai, Koo, David C., Weiner, Benjamin J., Chiueh, Tzihong, Coil, Alison L., Lotz, Jennifer, ...
Using data from the DEEP2 Galaxy Redshift Survey and HST/ACS imaging in the Extended Groth Strip, we select nearly 100 interacting galaxy systems including kinematic close pairs and morphologically...
Evolution in the Halo Masses of Isolated Galaxies between z~1 and z~0: From DEEP2 to SDSS (2006)
Conroy, Charlie, Prada, Francisco, Newman, Jeffrey A., Croton, Darren, Coil, Alison L., Conselice, Christopher J., ...
We measure the evolution in the virial mass-to-light ratio (M_{200}/L_B) and virial-to-stellar mass ratio (M_{200}/M_\ast) for isolated ~ L* galaxies between z~1 and z~0 by combining data from the...
The DEEP Groth Strip Survey VI. Spectroscopic, Variability, and X-ray Detection of AGN (2006)
Sarajedini, Vicki L., Koo, David C., Phillips, Andrew C., Kobulnicky, Henry A., Gebhardt, Karl, Willmer, Christopher N. A., ...
We identify active galactic nuclei (AGN) in the Groth-Westphal Survey Strip (GSS) using the independent and complementary selection techniques of optical spectroscopy and photometric variability. We...
Cooper, Michael C., Newman, Jeffrey A., Croton, Darren J., Weiner, Benjamin J., Willmer, Christopher N. A., Gerke, Brian F., ...
We study the mean environment of galaxies in the DEEP2 Galaxy Redshift Survey as a function of rest-frame color, luminosity, and [OII] equivalent width. The local galaxy overdensity for >14,000...
Schiavon, Ricardo P., Faber, S. M., Konidaris, Nicholas, Graves, Genevieve, Willmer, Christopher N. A., Weiner, Benjamin J., ...
As part of the DEEP2 galaxy redshift survey, we analyze absorption line strengths in stacked Keck/DEIMOS spectra of red field galaxies with weak to no emission lines, at redshifts 0.7
The Tully-Fisher Relation in Cluster Cl0024+1654 at z=0.4 (2006)
Metevier, Anne J., Koo, David C., Simard, Luc, Phillips, Andrew C.
Using moderate-resolution Keck spectra, we have examined the velocity profiles of 15 members of cluster Cl0024+1654 at z=0.4. WFPC2 images of the cluster members have been used to determine...
Cooper, Michael C., Newman, Jeffrey A., Croton, Darren J., Weiner, Benjamin J., Willmer, Christopher N. A., Gerke, Brian F., ...
We study the mean environment of galaxies in the DEEP2 Galaxy Redshift Survey as a function of rest-frame colour, luminosity, and [O ii] 3727 Å equivalent width. The local galaxy overdensity...
The DEEP2 Galaxy Redshift Survey: Clustering of Galaxies as a Function of Luminosity at z=1 (2005)
Coil, Alison L., Newman, Jeffrey A., Cooper, Michael C., Davis, Marc, Faber, S. M., Koo, David C., ...
We measure the clustering of DEEP2 galaxies at z=1 as a function of luminosity on scales 0.1 Mpc/h to 20 Mpc/h. Drawing from a parent catalog of 25,000 galaxies at 0.7
Hoyos, Carlos, Koo, David C., Phillips, Andrew C., Willmer, Christopher N. A., Guhathakurta, Puragra
We have discovered a sample of 17 metal-poor, yet luminous, star-forming galaxies at redshifts z~0.7. They were selected from the initial phase of the DEEP2 survey of 3900 galaxies and the Team Keck...
Colors of Luminous Bulges in Cluster MS1054-03 and Field Galaxies at Redshifts z ~ 0.83 (2005)
Koo, David C., Datta, Susmita, Willmer, Christopher N. A., Simard, Luc, Tran, Kim-Vy, Im, Myungshin
Using HST images, we separate the bulge-like (pbulge) and disk-like (pdisk) components of 71 galaxies in the rich cluster MS1054-03 and of 21 in the field. Our key finding is that luminous pbulges...
The DEEP2 Galaxy Redshift Survey: Clustering of Groups and Group Galaxies at z~1 (2005)
Coil, Alison L., Gerke, Brian F., Newman, Jeffrey A., Ma, Chung-Pei, Yan, Renbin, Cooper, Michael C., ...
We study the clustering properties of groups and of galaxies in groups in the DEEP2 Galaxy Redshift Survey dataset at z~1. Four clustering measures are presented: 1) the group correlation function...
HI Observations of SA 68-6597: the faintest Blue Compact Dwarf Galaxy (2005)
Pisano, D. J., Koo, David C., Willmer, Christopher N. A., Noeske, Kai Gerhard, Phillips, A. C.
Blue compact dwarf galaxies (BCDs) are faint (M(B) < -17 mag) compact (R ~3x10^7 M(sun). The M(HI)/L(B)=1.0+-0.3 M(sun)/L(sun), M(dyn)/L(B) >= 2 M(sun)/L(sun) and M(HI)/M(dyn)
The DEEP Groth Strip Survey. I. The Sample (2005)
Vogt, Nicole P., Koo, David C., Phillips, Andrew C., Wu, Katherine, Faber, S. M., Willmer, Christopher N. A., ...
The Deep Extragalactic Exploratory Probe (DEEP) is a multi-phase research program dedicated to the study of the formation and evolution of galaxies and of large scale structure in the distant...
Are There Local Analogs of Lyman Break Galaxies? (2005)
Lowenthal, James D., Durham, R. Nick, Lyons, Brian J., Bershady, Matthew A., Gallego, Jesus, Guzman, Rafael, ...
To make direct comparisons in the rest-far-ultraviolet between LBGs at z~3 and more local star-forming galaxies, we use HST/STIS to image a set of 12 nearby (z
The DEEP groth strip survey. VIII. The evolution of luminous field bulges at redshift z ~ 1 (2005)
Koo, David C., Simard, Luc, Willmer, Christopher N. A., Gebhardt, Karl, Bouwens, Rychard J., Kauffmann, Guinevere, ...
Nicole P. Vogt, David C. Koo, Andrew C. Phillips, Katherine Wu, S. M. Faber, ...
The Deep Extragalactic Exploratory Probe (DEEP) is a multi-phase research program dedicated to the study of the formation and evolution of galaxies and of large scale structure in the distant...
Koo, David C., Simard, Luc, Willmer, Christopher N. A., Gebhardt, Karl, Bouwens, Rychard J., Kauffmann, Guinevere, ...
We present a sample of over 50 luminous field bulges (including ellipticals) found in the Groth Strip Survey (GSS), with 0.73< z < 1.04 and with bulge magnitudes I
Lin, Lihwai, Koo, David C., Willmer, Christopher N. A., Patton, David R., Conselice, Christopher J., Yan, Renbin, ...
We derive the close, kinematic pair fraction and merger rate up to z ~ 1.2 from the initial data of the DEEP2 Redshift Survey. Assuming a mild luminosity evolution, the number of companions per...
The DEEP2 Galaxy Redshift Survey: First results on galaxy groups (2004)
Gerke, Brian F., Newman, Jeffrey A., Davis, Marc, Marinoni, Christian, Yan, Renbin, Coil, Alison, ...
We use the first 25% of the DEEP2 Galaxy Redshift Survey spectroscopic data to identify groups and clusters of galaxies in redshift space. The data set contains 8370 galaxies with confirmed redshifts...
Conroy, Charlie, Newman, Jeffrey A., Davis, Marc, Coil, Alison L., Yan, Renbin, Cooper, Michael C., ...
Using the first 25% of DEEP2 Redshift Survey data, we probe the line-of-sight velocity dispersion profile for isolated galaxies with absolute B-band magnitude -22
Coil, Alison L., Newman, Jeffrey A., Kaiser, Nick, Davis, Marc, Ma, Chung-Pei, Kocevski, Dale D., ...
When applied to deep photometric catalogs, the two-point angular correlation function, w(theta), is a sensitive probe of the evolution of galaxy clustering properties. Here we present measurements of...
The Team Keck Treasury Redshift Survey of the GOODS-North Field (2004)
Wirth, Gregory D., Willmer, Christopher N. A., Amico, Paola, Chaffee, Frederic H., Goodrich, Robert W., Kwok, Shui, ...
We report the results of an extensive imaging and spectroscopic survey in the GOODS-North field completed using DEIMOS on the Keck II telescope. Observations of 2018 targets in a magnitude-limited...
The DEEP Groth Strip Survey VII: The Metallicity of Field Galaxies at 0.26 (2003)
Kobulnicky, Henry A., Willmer, Christopher N. A., Weiner, Benjamin J., Koo, David C., Phillips, Andrew C., Faber, S. M., ...
Using spectroscopic data from the Deep Extragalactic Evolutionary Probe (DEEP) Groth Strip survey (DGSS), we analyze the gas-phase oxygen abundances in the warm ionized medium for 64 emission-line...
The DEEP Groth Strip Survey IX: Evolution of the Fundamental Plane of Field Galaxies (2003)
Gebhardt, Karl, Faber, S. M., Koo, David C., Im, Myungshin, Simard, Luc, Illingworth, Garth D., ...
Fundamental Plane studies provide an excellent means of understanding the evolutionary history of early-type galaxies. Using the Low Resolution Imaging Spectrograph on the Keck telescope, we obtained...
The DEEP2 Galaxy Redshift Survey: Clustering of Galaxies in Early Data (2003)
Coil, Alison L., Davis, Marc, Madgwick, Darren S., Newman, Jeffrey A., Conselice, Christopher J., Cooper, Michael, ...
We measure the two-point correlation function xi(r) using a sample of 2219 galaxies in an area of 0.32 degrees^2 at z=0.7-1.35 from the first season of the DEEP2 Galaxy Redshift Survey. We find that...
The DEEP2 Galaxy Redshift Survey: Spectral classification of galaxies at z~1 (2003)
Madgwick, Darren S., Coil, Alison L., Conselice, Christopher J., Cooper, Michael C., Davis, Marc, Ellis, Richard S., ...
We present a Principal Component Analysis (PCA)-based spectral classification, eta, for the first 5600 galaxies observed in the DEEP2 Redshift Survey. This parameter provides a very pronounced...
The DEEP Groth Strip Survey XII: The Metallicity of Field Galaxies at 0.26 (2003)
Kobulnicky, Henry A., Willmer, Christopher N. A., Weiner, Benjamin J., Koo, David C., Phillips, Andrew C., Faber, S. M., ...
Using spectroscopic data from the Deep Extragalactic Evolutionary Probe (DEEP) Groth Strip survey (DGSS), we analyze the gas-phase oxygen abundances for 56 emission-line field galaxies in the...
Koo, David C., Astrophysics Conference
Talk Abstract von Kongress: Star and Structure Formation: From First Light to the Milky Way, Astrophysics Conference, August 18-22, 2003, ETH Zurich, Switzerland
Simard, Luc, Willmer, Christopher N. A., Vogt, Nicole P., Sarajedini, Vicki L., Phillips, Andrew C., Weiner, Benjamin J., ...
The quantitative morphological classification of distant galaxies is essential to the understanding of the evolution of galaxies over the history of the Universe. This paper presents Hubble Space...
Kinematics of Distant Galaxies from Keck (2001)
DEEP is a two-phase spectral survey of faint field galaxies with the Keck Telescopes. The goals include exploring galaxy formation and evolution, mapping distant large scale structures, and...
A Pilot Study of the Tully-Fisher Relation in Cl0024+1654 at z=0.4 (2001)
Metevier, Anne J., Koo, David C., Simard, Luc
We present the first determination of the Tully-Fisher relation (TFR) for a distant galaxy cluster. We have measured internal kinematics of seven members of Cl0024+1654 from spatially resolved...
A Deep Keck Spectral Survey of Cl0024+1654 at z=0.4 (2001)
Metevier, Anne J., Koo, David C., Simard, Luc, Wirth, Gregory D.
We have undertaken a Keck spectral survey of galaxies to R~24 near the central region of Cl0024+1654 at z=0.4. The spectral resolution and slits have been selected to yield kinematics such as the...
Are There Blue, Massive E/S0s at z < 1 ?: Kinematics of Blue Spheroidal Galaxy Candidates (2001)
Im, Myungshin, Faber, S. M., Gebhardt, Karl, Koo, David C., Phillips, Andrew C., Schiavon, Ricardo P., ...
Several recent studies find that 10 - 50% of morphologically selected field early-type galaxies at redshifts z
Photometric Redshifts: A Perspective from an Old-Timer on Its Past, Present, and Potential (1999)
I review the early history of photometric redshifts; specify a working definition that encompasses a broader range of approaches than commonly adopted; discuss the pros and cons of template fitting...
Dynamics of Distant Normal Galaxies (1999)
Masses of galaxies are beginning to be measured systematically at redshifts z > 0.3. Such data provide powerful and unique links and clues to theories, simulations, and our understanding of early...
Pre-DEIMOS Pilot Surveys for DEEP (1998)
DEEP is a multi-institutional program designed to undertake a major spectroscopic survey of 10,000+ field galaxies to I ~ 23 with a new instrument (DEIMOS) on the Keck II 10-m telescope. The...
Near-Infrared Galaxy Counts to J and K ~ 24 as a Function of Image Size (1998)
Bershady, Matthew A., Lowenthal, James D., Koo, David C.
We have used the Keck 10m telescope to count objects as a function of image size in 2 high galactic latitude fields covering 1.5 arcmin^2 and reaching 50% completeness at K=24 and J=24.5 for stellar...
The Luminosity Function for L>L* Galaxies at z > 3 (1997)
Bershady, Matthew A., Majewski, Steven R., Koo, David C., Kron, Richard G., Munn, Jeffrey A.
Through use of multiband (U, B, R, I) photometry we have isolated high redshift (3.0
Optical Rotation Curves of Distant Field Galaxies: Sub-L* Systems (1997)
Vogt, Nicole P., Phillips, Andrew C., Faber, S. M., Gallego, Jesus, Gronwall, Caryl, Guzman, R., ...
Moderate-resolution spectroscopic observations from the Keck 10m telescope are used to derive internal kinematics for eight faint disk galaxies in the fields flanking the Hubble Deep Field. The...
Koo, David C., Guzman, Rafael, Gallego, Jesus, Wirth, Greg D.
We present new size, line ratio, and velocity width measurements for six strong emission-line galaxies in the galaxy cluster, Cl 0024+1654, at redshift z~0.4. The velocity widths from Keck spectra...
The Nature Of Compact Galaxies In The Hubble Deep Field. - I. Global Properties (1997)
Andrew C. Phillips, Rafael Guzmán, Jesús Gallego, David C. Koo, James D. Lowenthal, Nicole P. Vogt, ...
We present 10 m Keck spectroscopy and photometry for a sample of 61 small faint (r 1@2 0A. 5), highsurface brightness mag arcsec~2) galaxies in elds anking the Hubble (I 814 23.74), (k I814 \ 22.2...
Keck Spectroscopy of Redshift z~3 Galaxies in the Hubble Deep Field (1996)
Lowenthal, James D., Koo, David C., Guzman, Rafael, Gallego, Jesus, Phillips, Andrew C., Faber, S. M., ...
We have obtained spectra with the 10-m Keck telescope of a sample of 24 galaxies having colors consistent with star-forming galaxies at redshifts 22.5^-4 h50^3 Mpc^-3 for q0=0.05, or n>1.2^-3 h50^3...
Optical Rotation Curves of Distant Field Galaxies I : Keck Results at Redshifts to z ~ 1 (1996)
Vogt, Nicole P., Forbes, Duncan A., Phillips, Andrew C., Gronwall, Caryl, Faber, S. M., Illingworth, Garth D., ...
Spatially resolved velocity profiles are presented for nine faint field galaxies in the redshift range 0.1 < z < 1, based on moderate-resolution spectroscopy obtained with the Keck 10 m telescope....
Redshift z ~ 1 Field Galaxies Observed with the Keck Telescope and the HST (1996)
Koo, David C., Vogt, Nicole P., Phillips, Andrew C., Guzman, Rafael, Wu, K. L., Faber, S. M., ...
We report results based on 35 new spectroscopic redshifts obtained with the Keck Telescope for field galaxies that also have photometry and morphology from survey images taken by the refurbished HST....
Keck spectroscopy and Hubble Space Telescope imaging of field galaxies at moderate redshift (1996)
Forbes, Duncan A., Phillips, Andrew C., Koo, David C., Illingworth, Garth D.
We present 18 spectra, obtained with the Keck 10 m telescope, of faint field galaxies (19 <I < 22, 0.2 < z < 0.84) previously imaged by the Hubble Space Telescope (HST) Wide Field and...
Redshift z~1 field galaxies observed with the Keck Telescope and the Hubble Space Telescope (1996)
Koo, David C., Vogt, Nicole P., Phillips, Andrew C., Guzman, Rafael, Wu, K. L., Faber, S. M., ...
We report results based on 35 new spectroscopic redshifts obtained with the Keck Telescope for field galaxies that also have photometry and morphology from survey images taken by the refurbished...
Optical rotation curves of distant field galaxies: Keck results at redshifts to z~1 (1996)
Vogt, Nicole P., Forbes, Duncan A., Phillips, Andrew C., Gronwall, Caryl, Faber, S. M., Illingworth, Garth D., ...
Spatially resolved velocity profiles are presented for nine faint field galaxies in the redshift range 0.1 ≤ z ≤ 1, based on moderate-resolution spectroscopy obtained with the Keck 10 m...
Keck spectroscopy and Hubble Space Telescope imaging of field galaxies at moderate redshift (1996)
Forbes, Duncan A., Phillips, Andrew C., Koo, David C., Illingworth, Garth D.
We present 18 spectra, obtained with the Keck 10 m telescope, of faint field galaxies (19 <I < 22, 0.2 < z < 0.84) previously imaged by the Hubble Space Telescope (HST) Wide Field and...
Redshift z~1 field galaxies observed with the Keck Telescope and the Hubble Space Telescope (1996)
Koo, David C., Vogt, Nicole P., Phillips, Andrew C., Guzman, Rafael, Wu, K. L., Faber, S. M., ...
We report results based on 35 new spectroscopic redshifts obtained with the Keck Telescope for field galaxies that also have photometry and morphology from survey images taken by the refurbished...
Optical rotation curves of distant field galaxies: Keck results at redshifts to z~1 (1996)
Vogt, Nicole P., Forbes, Duncan A., Phillips, Andrew C., Gronwall, Caryl, Faber, S. M., Illingworth, Garth D., ...
Spatially resolved velocity profiles are presented for nine faint field galaxies in the redshift range 0.1 ≤ z ≤ 1, based on moderate-resolution spectroscopy obtained with the Keck 10 m...
Strong Angular Clustering of Very Blue Galaxies: Evidence of a Low Redshift Population (1995)
Landy, Stephen D., Szalay, Alexander S., Koo, David C.
We have studied galaxy two-point angular correlations as a function of color using 4-m plate photometry in two independent fields. Each field consists of over 2900 galaxies with magnitudes 20
Keck Spectroscopy and HST Imaging of Field Galaxies at Moderate Redshift (1995)
Forbes, Duncan A., Phillips, Andrew C., Koo, David C., Illingworth, Garth D.
We present 18 spectra, obtained with the Keck 10m telescope, of faint field galaxies (19 $
Resurrection of Traditional Luminosity Evolution Models to Explain Faint Field Galaxies (1994)
Gronwall, Caryl, Koo, David C.
We explore the nature of the evolution of faint field galaxies by assuming that the local luminosity function is not well defined. We use a non-negative least squares technique to derive a near...
Wirth, Gregory D., Koo, David C., Kron, Richard G.
We present HST images of 24 confirmed members of the distant galaxy cluster Cl0016+16 at redshift 0.55. The Balmer-strong (``E+A'') and emission- line galaxies frequently show unusual visual...
Windhorst, Rogier A., Schmidtke, Paul C., Pascarelle, Sebastian M., Gordon, J. M., Griffiths, Richard, Ratnatunga, Kavan U., ...
We present isophotal profiles of six faint field galaxies from some of the first deep images taken for the Hubble Space Telescope (HST) Medium Deep Survey (MDS). These have redshifts in the range...
Griffiths, Richard, Ratnatunga, Kavan U., Neuschaefer, Lyman W., Casertano, Stefano, Im, Myungshin, Wyckoff, Eric W., ...
We present results from the Medium Deep Survey (MDS), a Key Project using the Hubble Space Telescope. Wide Field Camera images of random fields have been taken in "parallel mode" with an effective...
Windhorst, Rogier A., Schmidtke, Paul C., Pascarelle, Sebastian M., Gordon, J. M., Griffiths, Richard, Ratnatunga, Kavan U., ...
We present isophotal profiles of six faint field galaxies from some of the first deep images taken for the Hubble Space Telescope (HST) Medium Deep Survey (MDS). These have redshifts in the range...
Griffiths, Richard, Ratnatunga, Kavan U., Neuschaefer, Lyman W., Casertano, Stefano, Im, Myungshin, Wyckoff, Eric W., ...
We present results from the Medium Deep Survey (MDS), a Key Project using the Hubble Space Telescope. Wide Field Camera images of random fields have been taken in "parallel mode" with an effective...