Paschen-alpha Emission in the Gravitationally Lensed Galaxy SMM J163554.2+661225 (2009)
Papovich, Casey, Rudnick, Gregory, Rigby, Jane, Willmer, Christopher, Finkelstein, Steven, ...
We report the detection of the Paschen-alpha emission line in the z=2.515 galaxy SMM J163554.2+661225 using Spitzer spectroscopy. SMM J163554.2+661225 is a sub-millimeter-selected infrared...
Robaina, Aday R., Bell, Eric F., Skelton, Rosalind E., McIntosh, Daniel H., Somerville, Rachel S., Zheng, Xianzhong, ...
Both observations and simulations show that major tidal interactions or mergers between gas-rich galaxies can lead to intense bursts of starformation. Yet, the average enhancement in star formation...
Mid-IR Luminosities and UV/Optical Star Formation Rates at z < 1.4 (2009)
Salim, Samir, Dickinson, Mark, Rich, R. Michael, Charlot, Stéphane, Lee, Janice C., Schiminovich, David, ...
Ultraviolet (UV) nonionizing continuum and mid-infrared (IR) emission constitute the basis of two widely used star formation (SF) indicators at intermediate and high redshifts. We study 2430 galaxies...
A Plethora of AGN Among Lyman Alpha Galaxies at Low Redshift (2009)
Finkelstein, Steven L., Cohen, Seth H., Malhotra, Sangeeta, Rhoads, James E., Papovich, Casey, Zheng, Zhenya, ...
We investigate the fraction of z ~ 0.3 Lyman alpha emitting galaxies (LAEs) which host active galactic nucleus activity, which is typically from 1 - 5% at 2 < z < 6. Using optical spectroscopy of 23...
Wolf, Christian, Aragón-Salamanca, Alfonso, Balogh, Michael, Barden, Marco, Bell, Eric F., Gray, Meghan E., ...
Galaxies migrate from the blue cloud to the red sequence when their star formation is quenched. Here, we report on galaxies quenched by environmental effects and not by mergers or strong AGN as often...
Turning Back the Clock: Inferring the History of the Eight O'clock Arc (2009)
Finkelstein, Steven L., Papovich, Casey, Rudnick, Gregory, Egami, Eiichi, Floc'h, Emeric Le, Rieke, Marcia J., ...
We present the results from an optical and near-infrared spectroscopic study of the ultraviolet-luminous z = 2.73 galaxy, the 8 o'clock arc. Due to gravitational lensing, this galaxy is magnified by...
Mid-IR Luminosities and UV/Optical Star Formation Rates at z (2009)
Salim, Samir, Dickinson, Mark, Rich, R. Michael, Charlot, Stephane, Lee, Janice C., Schiminovich, David, ...
UV continuum and mid-IR emission constitute two widely used star formation indicators at intermediate and high redshifts. We study 2430 galaxies with z10^11 L_sun, yet with little current star...
Jogee, Shardha, Miller, Sarah H., Penner, Kyle, Skelton, Rosalind E., Conselice, Christopher J., Somerville, Rachel S., ...
We perform a comprehensive estimate of the frequency of galaxy mergers and their impact on star formation over z~0.24--0.80 (lookback time T_b~3--7 Gyr) using 3698 (M*>=1e9 Msun) galaxies with GEMS...
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...
Spitzer 70/160 μm observations of high-redshift ULIRGs and HyLIRSs in the Boötes field (2009)
Tyler, Krystal D., Le Floc'h, Emeric, Rieke, George H., Dey, Arjun, Desai, Vandana, Brand, Kate, ...
We present new 70 and 160 μm observations of a sample of extremely red (R – [24] ≳ 15 mag), mid-infrared bright, high-redshift (1.7 ≾ z ≾ 2.8) galaxies. All targets detected in the...
Bluck, Asa F. L., Conselice, Christopher J., Bouwens, Rychard J., Daddi, Emanuele, Dickinson, Mark, Papovich, Casey, ...
We calculate the major pair fraction and derive the major merger fraction and rate for 82 massive ($M_{*}>10^{11}M_{\odot}$) galaxies at $1.7 < z < 3.0$ utilising deep HST NICMOS data taken in the...
Wolf, Christian, Aragon-Salamanca, Alfonso, Balogh, Michael, Barden, Marco, Bell, Eric F., Gray, Meghan E., ...
We investigate the properties of optically passive spirals and dusty red galaxies in the A901/2 cluster complex at redshift ~0.17 using restframe near-UV-optical SEDs, 24 micron IR data and HST...
STAGES: the Space Telescope A901/2 Galaxy Evolution Survey (2008)
Gray, M. E., Wolf, Christian, Barden, Marco, Peng, Chien Y., Haeussler, Boris, Bell, Eric F., ...
We present an overview of the Space Telescope A901/2 Galaxy Evolution Survey (STAGES). STAGES is a multiwavelength project designed to probe physical drivers of galaxy evolution across a wide range...
On the Stellar Populations in Faint Red Galaxies in the Hubble Ultra Deep Field (2008)
Stutz, Amelia M., Papovich, Casey, Eisenstein, Daniel J.
We study the nature of faint, red-selected galaxies at z ~ 2-3 using the Hubble Ultra Deep Field (HUDF) and Spitzer IRAC photometry. We detect candidate galaxies to H < 26 mag, probing...
The Angular Clustering of Distant Galaxy Clusters (2007)
We discuss the angular clustering of galaxy clusters at z > 1 selected within 50 sq. deg from the Spitzer Wide-Infrared Extragalactic survey. We employ a simple color selection to identify high...
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...
Spitzer Mid-to-Far-Infrared Flux Densities of Distant Galaxies (2007)
Papovich, Casey, Rudnick, Gregory, Floc'h, Emeric Le, Van Dokkum, Pieter G., Rieke, George H., Taylor, Edward N., ...
We study the infrared (IR) properties of high-redshift galaxies using deep Spitzer 24, 70, and 160 micron data. Our primary interest is to improve the constraints on the total IR luminosities, L(IR),...
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...
Star Formation and the Growth of Stellar Mass (2007)
Bell, Eric F., Zheng, Xian Zhong, Papovich, Casey, Borch, Andrea, Wolf, Christian, Meisenheimer, Klaus
Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z=1, dominated by a steadily increasing number of galaxies with stellar masses M* <...
The dependence of Star Formation on Galaxy Stellar Mass (2007)
Zheng, Xian Zhong, Bell, Eric F., Papovich, Casey, Wolf, Christian, Meisenheimer, Klaus, Rix, Hans-Walter, ...
We combine Spitzer 24micron observations with data from the COMBO-17 survey for ~15,000 0.2
The dependence of star formation on galaxy stellar mass (2007)
Zheng, Xian Zhong, Bell, Eric F., Papovich, Casey, Wolf, Christian, Meisenheimer, Klaus, Rix, Hans-Walter, ...
We combine Spitzer 24 mum observations with data from the COMBO-17 survey for ~15,000 0.2
Star formation and the growth of stellar mass (2007)
Bell, Eric F., Zheng, Xian Zhong, Papovich, Casey, Borch, Andrea, Wolf, Christian, Meisenheimer, Klaus
Recent observations have demonstrated a significant growth in the integrated stellar mass of the red sequence since z=1, dominated by a steadily increasing number of galaxies with stellar masses M* <...
Eight billion years of disk galaxy evolution (2007)
Bell, Eric F., Barden, Marco, Zheng, Xianzhong, Papovich, Casey, Le Floc'h, Emeric, Rieke, George, ...
We present a brief discussion of the evolution of disk galaxy stellar masses, sizes, rotation velocities, and star formation rates over the last eight billion years. Recent observations have failed...
The Star Formation History and Stellar Assembly of High Redshift Galaxies (2006)
I discuss current observational constraints on the star-formation and stellar-assembly histories of galaxies at high redshifts. The data on massive galaxies at z2, and that their morphological...
AEGIS: Extinction and Star Formation Tracers from Line Emission (2006)
Weiner, Benjamin J., Papovich, Casey, Bundy, K., Conselice, C. J., Cooper, M. C., Ellis, R. S., ...
Strong nebular emission lines are a sensitive probe of star formation and extinction in galaxies, and the [O II] line detects star forming populations out to z>1. However, star formation rates from...
Eight billion years of disk galaxy evolution: no galaxy is an island (2006)
Bell, Eric F., Barden, Marco, Zheng, Xianzhong, Papovich, Casey, Floc'h, Emeric Le, Rieke, George, ...
We present a brief discussion of the evolution of disk galaxy stellar masses, sizes, rotation velocities, and star formation rates over the last eight billion years. Recent observations have failed...
Spitzer Observations of Red Galaxies at High Redshifts (2006)
Papovich, Casey, Teams, MIPS GTO
I discuss constraints on star formation and AGN in massive, red galaxies at z~1-3 using Spitzer observations at 3-24 micron. In particular I focus on a sample of distant red galaxies (DRGs) with J -...
Dole, Herve, Lagache, Guilaine, Puget, Jean-Loup, Caputi, Karina I., Fernandez-Conde, Nestor, Floc'h, Emeric Le, ...
Aims. We quantify the contributions of 24um galaxies to the Far-Infrared (FIR) Background at 70 and 160um. We provide new estimates of the Cosmic Infrared Background (CIB), and compare it with the...
Spectral Energy Distributions and Multiwavelength Selection of Type 1 Quasars (2006)
Richards, Gordon T., Lacy, Mark, Storrie-Lombardi, Lisa J., Hall, Patrick B., Gallagher, S. C., Hines, Dean C., ...
We present an analysis of the mid-infrared (MIR) and optical properties of type 1 (broad-line) quasars detected by the Spitzer Space Telescope. The MIR color-redshift relation is characterized to...
A Spitzer View of Massive Galaxies at z~1-3 (2006)
Papovich, Casey, Teams, MIPS GTO
I discuss constraints on star--formation and AGN activity in massive galaxies at z~1-3 using observations from the Spitzer Space Telescope. In particular I focus on a sample of distant red galaxies...
Detecting faint galaxies by stacking at 24 µm (2006)
Zheng, X. Z., Bell, Eric F., Rix, Hans-Walter, Papovich, Casey, Le Floc'h, Emeric, Rieke, G. H., ...
We stack Spitzer 24 mum images for ~7000 galaxies with 0.1
Spectral energy distributions and multiwavelength selection of type 1 quasars (2006)
Richards, Gordon T., Lacy, Mark, Storrie-Lombardi, Lisa J., Hall, Patrick B., Gallagher, S. C., Hines, Dean C., ...
We present an analysis of the mid-infrared (MIR) and optical properties of type 1 (broad-line) quasars detected by the Spitzer Space Telescope. The MIR color-redshift relation is characterized to...
A MMT/Hectospec Redshift Survey of 24 Micron Sources in the Spitzer First Look Survey (2005)
Papovich, Casey, Cool, Richard, Eisenstein, Daniel, Floc'h, Emeric Le, Fan, Xiaohui, Kennicutt, Robert C., ...
We present a spectroscopic survey using the MMT/Hectospec fiber spectrograph of 24 micron sources selected with the Spitzer Space Telescope in the Spitzer First Look Survey. We report 1296 new...
Spitzer Observations of Red Galaxies: Implication for High-Redshift Star Formation (2005)
Papovich, Casey, GOODS, For The, Teams, MIPS GTO
My colleagues and I identified distant red galaxies (DRGs) with J-K>2.3 mag in the GOODS-S field. These galaxies reside at z~1-3.5, (=2.2) and based on their ACS (0.4-1 micron), ISAAC (1-2.2 micron),...
Spitzer Observations of Massive Red Galaxies at High Redshift (2005)
Papovich, Casey, Moustakas, L. A., Dickinson, M., Floc'h, E. Le, Rieke, G. H., Daddi, E., ...
We investigate the properties of massive galaxies at z=1-3.5 using HST observations, ground-based near-IR imaging, and Spitzer Space Telescope observations at 3-24 micron. We identify 153 distant red...
Building Galaxies with Simulations (2005)
Davé, Romeel, Finlator, Kristian, Hernquist, Lars, Katz, Neal, Kereš, Dušan, Papovich, Casey, ...
We present an overview of some of the issues surrounding current models of galaxy formation, highlighting recent insights obtained from cosmological hydrodynamic simulations. Detailed examination of...
Brown, Michael J. I., Brand, Kate, Dey, Arjun, Jannuzi, Buell T., Cool, Richard, Floc'h, Emeric Le, ...
We determine the rest-frame 8 micron luminosity function of type I quasars over the redshift range 1
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....
Spitzer view on the evolution of star-forming galaxies from z=0 to z~3 (2005)
Perez-Gonzalez, Pablo G., Rieke, George H., Egami, Eiichi, Alonso-Herrero, Almudena, Dole, Herve, Papovich, Casey, ...
We use a 24 micron selected sample containing more than 8,000 sources to study the evolution of star-forming galaxies in the redshift range from z=0 to z~3. We obtain photometric redshifts for most...
Towards an understanding of the rapid decline of the cosmic star formation rate (2005)
Bell, Eric F., Papovich, Casey, Wolf, Christian, Floc'h, Emeric Le, Caldwell, John A. R., Barden, Marco, ...
We present a first analysis of deep 24 micron observations with the Spitzer Space Telescope of a sample of nearly 1500 galaxies in a thin redshift slice, 0.65
Papovich, Casey, Dickinson, Mark, Giavalisco, Mauro, Conselice, Christopher J., Ferguson, Henry C.
We have studied the evolution in the morphologies, sizes, stellar-masses, colors, and internal color dispersion (ICD) of galaxies at z=1 and 2.3, using a near-IR, flux-limited catalog for the HDF-N....
Toward an understanding of the rapid decline of the cosmic star formation rate (2005)
Bell, Eric F., Papovich, Casey, Wolf, Christian, Le Floc'h, Emeric, Caldwell, John A. R., Barden, Marco, ...
We present a first analysis of deep 24 mum observations with the Spitzer Space Telescope of a sample of nearly 1500 galaxies in a thin redshift slice, 0.65
Le Floc'h, Emeric, Papovich, Casey, Dole, Hervé, Bell, Eric F., Lagache, Guilaine, Rieke, George H., ...
We analyze a sample of ~2600 Spitzer MIPS 24 mum sources brighter than ~80 muJy and located in the Chandra Deep Field-South to characterize the evolution of the comoving infrared (IR) energy density...
Studying Distant Infrared-Luminous Galaxies with Spitzer and Hubble (2004)
Papovich, Casey, Egami, Eiichi, Floc'h, Emeric Le, Perez-Gonzalez, Pablo, Rieke, George, Rigby, Jane, ...
New surveys with the Spitzer space telescope identify distant star-forming and active galaxies by their strong emission at far-infrared wavelengths, which provides strong constraints on these...
The 24 Micron Source Counts in Deep Spitzer Surveys (2004)
Papovich, Casey, Dole, H., Egami, E., Floc'h, E. Le, Perez-Gonzalez, P. G., Alonso-Herrero, A., ...
Galaxy source counts in the infrared provide strong constraints on the evolution of the bolometric energy output from distant galaxy populations. We present the results from deep 24 micron imaging...
Conselice, Christopher J., Blackburne, Jeffrey A., Papovich, Casey
The evolution of rest-frame B-band luminosities, stellar masses, and number densities of field galaxies in the Hubble Deep Field North and South are studied as a function of rest-frame B-band...
Searching for star formation beyond reionization (2004)
Davé, Romeel, Smith, John-David T., Papovich, Casey, Hernquist, Lars, Springel, Volker
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...
Searching for Star Formation Beyond Reionization (2003)
Barton, Elizabeth J., Dav'e, Romeel, Smith, John-David T., Papovich, Casey, Hernquist, Lars, Springel, Volker
The goal of searching back in cosmic time to find star formation during the epoch of reionization will soon be within reach. We assess the detectability of high-redshift galaxies by combining...
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,...
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...
The z ~ 4 Lyman Break Galaxies: Colors and Theoretical Predictions (2003)
Idzi, Rafal, Somerville, Rachel, Papovich, Casey, Ferguson, Henry C., Giavalisco, Mauro, Kretchmer, Claudia, ...
We investigate several fundamental properties of z ~ 4 Lyman-break galaxies by comparing observations with the predictions of a semi-analytic model based on the Cold Dark Matter theory of...
Papovich, Casey, Giavalisco, Mauro, Dickinson, Mark, Conselice, Christopher J., Ferguson, Henry C.
We present a quantitative measure of the internal color dispersion within galaxies, which quantifies differences in morphology as a function of wavelength. We apply this statistic to a local galaxy...
A Direct Measurement of Major Galaxy Mergers at z < 3 (2003)
Conselice, Christopher J., Bershady, Matthew A., Dickinson, Mark, Papovich, Casey
This paper presents direct evidence for hierarchical galaxy assembly out to redshifts z ~ 3. We identify major mergers using the model-independent CAS (concentration, asymmetry, clumpiness) physical...
The Evolution of the Global Stellar Mass Density at 0 < z < 3 (2002)
Dickinson, Mark, Papovich, Casey, Ferguson, Henry C., Budavari, Tamas
The build-up of stellar mass in galaxies is the consequence of their past star formation and merging histories. Here we report measurements of rest-frame optical light and calculations of stellar...
Papovich, Casey, Bell, Eric F.
The Space Infrared Telescope Facility (SIRTF) will revolutionize the study of dust-obscured star formation in distant galaxies. Although deep images from the Multiband Imaging Photometer for SIRTF...
Lyman Break Galaxies and the Reionization of the Intergalactic Medium (2002)
Ferguson, Henry C., Dickinson, Mark, Papovich, Casey
Near-infrared observations of Lyman-break galaxies at redshifts z~3 are beginning to provide constraints on ages, star-formation histories, dust content, metallicities, and stellar masses. At...
Lyman Break Galaxies in the NGST Era (2002)
Ferguson, Henry C., Dickinson, Mark, Papovich, Casey
With SIRTF and NGST in the offing, it is interesting to examine what the stellar populations of z~3 galaxies models imply for the existence and nature of Lyman-break galaxies at higher redshift. To...
Stellar Masses of High-Redshift Galaxies (2002)
Papovich, Casey, Dickinson, Mark, Ferguson, Harry
We present constraints on the stellar-mass distribution of distant galaxies. These stellar-mass estimates derive from fitting population-synthesis models to the galaxies' observed multi-band...
Deep Near-Infrared Imaging Surveys and the Stellar Content of High Redshift Galaxies (2001)
Dickinson, Mark, Papovich, Casey, Ferguson, Henry C.
Deep, near-infrared imaging surveys have been motivated by the desire to study the rest-frame optical properties and stellar content of galaxies at high redshift. Here we briefly review their...
The Stellar Populations and Evolution of Lyman Break Galaxies (2001)
Papovich, Casey, Dickinson, Mark, Ferguson, Henry C.
Using deep near-IR and optical observations of the HDF-N from the HST NICMOS and WFPC2 and from the ground, we examine the spectral energy distributions (SEDs) of Lyman break galaxies (LBGs) at 2.0 <...
Hubble Space Telescope Observations of the Associated Absorption Systems in Q0122+0338 (1999)
Papovich, Casey, Norman, Colin A., Bowen, David V., Heckman, Tim, Savaglio, Sandra, Koekemoer, Anton M., ...
We have studied a spectrum of Q0122+0338 (z = 1.202) obtained by the FOS on board HST. We present the analysis of three associated absorption systems at z = 1.207, 1.199 and 1.166. The most complex...
The Unusual Infrared Object HDF-N J123656.3+621322 (1999)
Dickinson, Mark, Hanley, Christopher, Elston, Richard, Eisenhardt, Peter R., Stanford, S. A., Adelberger, Kurt L., ...
We describe an object in the Hubble Deep Field North with very unusual near-infrared properties. It is readily visible in Hubble Space Telescope NICMOS images at 1.6um and from the ground at 2.2um,...