Ronald O. Marzke

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...

Red nuggets at z simlar to 1.5: compact passive galaxies and the formation of the Kormendy relation (2009)

Damjanov, Ivana, McCarthy, Patrick J., Abraham, Roberto G., Glazebrook, Karl, Yan, Haojing, Mentuch, Erin, ...

We present the results of Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) imaging of a sample of 19 high-mass passively evolving galaxies with 1.2 < z < 2, taken primarily from the...

A near-infrared excess in the continuum of high-redshift galaxies: a tracer of star and planet formation? (2009)

Mentuch, Erin, Abraham, Roberto G., Glazebrook, Karl, McCarthy, Patrick J., Yan, Haojing, O'Donnell, Daniel V., ...

A broad continuum excess in the near-infrared, peaking in the rest frame at 2-5 micron, is detected in a spectroscopic sample of 88 galaxies at 0.5

Red nuggets at z similar to 1.5: compact passive galaxies and the formation of the Kormendy relation (2009)

Damjanov, Ivana, McCarthy, Patrick J., Abraham, Roberto G., Glazebrook, Karl, Yan, Haojing, Mentuch, Erin, ...

We present the results of Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) imaging of a sample of 19 high-mass passively evolving galaxies with 1.2 < z < 2, taken primarily from the Gemini...

A near-infrared excess in the continuum of high-redshift galaxies: a tracer of star and planet formation? (2009)

Mentuch, Erin, Abraham, Roberto G., Glazebrook, Karl, McCarthy, Patrick J., Yan, Haojing, O'Donnell, Daniel V., ...

A broad continuum excess in the near-infrared, peaking in the rest frame at 2-5 micron, is detected in a spectroscopic sample of 88 galaxies at 0.5

A spectroscopic survey of dwarf galaxies in the Coma Cluster: Stellar populations, environment and downsizing (2008)

Smith, Russell J., Lucey, John R., Hudson, Michael J., Allanson, Steven P., Bridges, Terry J., Hornschemeier, Ann E., ...

We investigate the stellar populations in a sample of 89 faint (M*+2 to M*+4) red galaxies in the Coma cluster, using high S/N spectroscopy from the MMT. Our sample is drawn from two 1-degree fields,...

Red Nuggets at z~1.5: Compact passive galaxies and the formation of the Kormendy Relation (2008)

Damjanov, Ivana, McCarthy, Patrick J., Abraham, Roberto G., Glazebrook, Karl, Yan, Haojing, Mentuch, Erin, ...

We present the results of NICMOS imaging of a sample of 16 high mass passively evolving galaxies with 1.32, this is the first time such systems have been detected in a rest-frame optical survey at 1.3

A large population of recently-quenched red-sequence dwarf galaxies in the outskirts of the Coma Cluster (2008)

Smith, Russell J., Marzke, Ronald O., Hornschemeier, Ann E., Bridges, Terry J., Hudson, Michael J., Miller, Neal A., ...

We analyse the stellar populations of 75 red-sequence dwarf galaxies in the Coma cluster, based on high signal-to-noise spectroscopy from the 6.5m MMT. The sample covers a luminosity range 3-4...

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 Hubble Space Telescope Advanced Camera for Surveys 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 Hubble Space Telescope Advanced Camera for Surveys 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...

A compact cluster of massive red galaxies at a redshift of 1.5 (2007)

McCarthy, Patrick J., Yan, Haojing, Abraham, Roberto G., Mentuch, Erin, Glazebrook, Karl, Yan, Lin, ...

We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST)...

The Gemini Deep Deep Survey: VIII. When Did Early-type Galaxies Form? (2007)

Abraham, Roberto G., Nair, Preethi, McCarthy, Patrick J., Glazebrook, Karl, Mentuch, Erin, Yan, Haojing, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys (Ford et al. 2003) to measure the cumulative mass density in morphologically-selected early-type galaxies over the redshift range...

The Gemini Deep Deep Survey VIII : when did early-type galaxies form? (2007)

Abraham, Roberto G., Nair, Preethi, McCarthy, Patrick J., Glazebrook, Karl, Mentuch, Erin, Yan, Haojing, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys (Ford et al. 2003) to measure the cumulative mass density in morphologically selected early-type galaxies over the redshift range...

A compact cluster of massive red galaxies at a redshift of 1.5 (2007)

McCarthy, Patrick J., Yan, Haojing, Abraham, Roberto G., Mentuch, Erin, Glazebrook, Karl, Yan, Lin, ...

We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST)...

The Gemini Deep Deep Survey VIII : when did early-type galaxies form? (2007)

Abraham, Roberto G., Nair, Preethi, McCarthy, Patrick J., Glazebrook, Karl, Mentuch, Erin, Yan, Haojing, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys (Ford et al. 2003) to measure the cumulative mass density in morphologically selected early-type galaxies over the redshift range...

A compact cluster of massive red galaxies at a redshift of 1.5 (2007)

McCarthy, Patrick J., Yan, Haojing, Abraham, Roberto G., Mentuch, Erin, Glazebrook, Karl, Yan, Lin, ...

We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST)...

The Gemini Deep Deep Survey VIII : when did early-type galaxies form? (2007)

Abraham, Roberto G., Nair, Preethi, McCarthy, Patrick J., Glazebrook, Karl, Mentuch, Erin, Yan, Haojing, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys (Ford et al. 2003) to measure the cumulative mass density in morphologically selected early-type galaxies over the redshift range...

A compact cluster of massive red galaxies at a redshift of 1.5 (2007)

McCarthy, Patrick J., Yan, Haojing, Abraham, Roberto G., Mentuch, Erin, Glazebrook, Karl, Yan, Lin, ...

We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST)...

When do early-type galaxies form? (2007)

Abraham, Roberto G., McCarthy, Patrick J., Mentuch, Erin, Glazebrook, Karl, Nair, Preethi, Gauthier, Jean-Ren, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys to measure the mass density function of morphologically-selected early-type galaxies in the Gemini Deep Deep Survey fields, over...

A compact cluster of massive red galaxies at a redshift of 1.5 (2007)

McCarthy, Patrick J., Yan, Haojing, Abraham, Roberto G., Mentuch, Erin, Glazebrook, Karl, Yan, Lin, ...

We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST)...

The Gemini Deep Deep Survey VIII : when did early-type galaxies form? (2007)

Abraham, Roberto G., Nair, Preethi, McCarthy, Patrick J., Glazebrook, Karl, Mentuch, Erin, Yan, Haojing, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys (Ford et al. 2003) to measure the cumulative mass density in morphologically selected early-type galaxies over the redshift range...

When do early-type galaxies form? (2007)

Abraham, Roberto G., McCarthy, Patrick J., Mentuch, Erin, Glazebrook, Karl, Nair, Preethi, Gauthier, Jean-Ren, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys to measure the mass density function of morphologically-selected early-type galaxies in the Gemini Deep Deep Survey fields, over...

When do early-type galaxies form? (2006)

Abraham, Roberto G., McCarthy, Patrick J., Mentuch, Erin, Glazebrook, Karl, Nair, Preethi, Gauthier, Jean-Rene, ...

We have used the Hubble Space Telescope's Advanced Camera for Surveys to measure the mass density function of morphologically selected early-type galaxies in the Gemini Deep Deep Survey fields, over...

Optical and near-infrared observations of the peculiar Type la supernova 1999ac (2006)

Phillips, Mark M., Krisciunas, Kevin, Suntzeff, Nicholas B., Abraham, R. G., Beckett, M. G., Bonati, Marco, ...

We present 39 nights of optical photometry, 34 nights of IR photometry, and 4 nights of optical spectroscopy of the Type la supernova 1999ac. This supernova was discovered 2 weeks before maximum...

Optical and near-infrared observations of the peculiar Type la supernova 1999ac (2006)

Phillips, Mark M., Krisciunas, Kevin, Suntzeff, Nicholas B., Abraham, R. G., Beckett, M. G., Bonati, Marco, ...

We present 39 nights of optical photometry, 34 nights of IR photometry, and 4 nights of optical spectroscopy of the Type la supernova 1999ac. This supernova was discovered 2 weeks before maximum...

Gemini Deep Deep Survey VI: Massive Hdelta-strong galaxies at z=1 (2005)

Borgne, Damien Le, Abraham, Roberto, Daniel, Kathryne, McCarthy, Patrick, Glazebrook, Karl, Savaglio, Sandra, ...

We show that there has been a dramatic decline in the abundance of massive galaxies with strong Hdelta stellar absorption lines from z=1.2 to the present. These ``Hdelta-strong'', or HDS, galaxies...

The Gemini Deep Deep Survey, VII: the redshift evolution of the mass-metallicity relation (2005)

Savaglio, Sandra, Glazebrook, Karl, Le Borgne, Damien, Juneau, Stephanie, Abraham, Roberto G., Chen, Hsiao Wen, ...

We have investigated the mass-metallicity (M-Z) relation using galaxies at 0.4 < z <1.0 from the Gemini Deep Deep Survey (GDDS) and Canada-France Redshift Survey (CFRS). Deep K- and z-band...

The Gemini Deep Deep Survey, VII: the redshift evolution of the mass-metallicity relation (2005)

Savaglio, Sandra, Glazebrook, Karl, Le Borgne, Damien, Juneau, Stephanie, Abraham, Roberto G., Chen, Hsiao Wen, ...

We have investigated the mass-metallicity (M-Z) relation using galaxies at 0.4 < z <1.0 from the Gemini Deep Deep Survey (GDDS) and Canada-France Redshift Survey (CFRS). Deep K- and z-band...

The Gemini Deep Deep Survey, VII: the redshift evolution of the mass-metallicity relation (2005)

Savaglio, Sandra, Glazebrook, Karl, Le Borgne, Damien, Juneau, Stephanie, Abraham, Roberto G., Chen, Hsiao Wen, ...

We have investigated the mass-metallicity (M-Z) relation using galaxies at 0.4 < z <1.0 from the Gemini Deep Deep Survey (GDDS) and Canada-France Redshift Survey (CFRS). Deep K- and z-band...

Reconstructing Galaxy Histories from Globular Clusters (2004)

West, Michael J., Cote, Patrick, Marzke, Ronald O., Jordan, Andres

Nearly a century after the true nature of galaxies as distant "island universes" was established, their origin and evolution remain great unsolved problems of modern astrophysics. One of the most...

The Gemini Deep Deep Survey I: introduction to the survey, catalogs, and composite spectra (2004)

Abraham, Roberto G., Glazebrook, Karl, McCarthy, Patrick J., Crampton, David, Murowinski, Richard, Jorgensen, Inger, ...

The Gemini Deep Deep Survey (GDDS) is an ultradeep (K < 20.6 mag, I < 24.5 mag) redshift survey targeting galaxies in the "redshift desert" between z = 1 and z = 2. The primary goal of the...

The Gemini Deep Deep Survey II: metals in star-forming galaxies at redshift 1.3 less than z less than 2 (2004)

Savaglio, Sandra, Glazebrook, Karl, Abraham, Roberto G., Crampton, David, Chen, Hsiao-Wen, McCarthy, Patrick J., ...

The goal of the Gemini Deep Deep Survey (GDDS) is to study an unbiased sample of K < 20.6 galaxies in the redshift range 0.8 < z < 2.0. Here we determine the statistical properties of the...

Evolved galaxies at z greater than 1.5 from the Gemini Deep Deep survey: the formation epoch of massive stellar systems (2004)

McCarthy, Patrick J., Le Borgne, Damien, Crampton, David, Chen, Hsiao-Wen, Abraham, Roberto G., Glazebrook, Karl, ...

We present spectroscopic evidence from the Gemini Deep Deep Survey for a significant population of color-selected red galaxies at 1.3 < z, < 2.2 whose integrated light is dominated by evolved...

A high abundance of massive galaxies 3-6 billion years after the Big Bang (2004)

Glazebrook, Karl, Abraham, Roberto G., McCarthy, Patrick J., Savaglio, Sandra, Chen, Hsiao-Wen, Crampton, David, ...

Hierarchical galaxy formation is the model whereby massive galaxies form from an assembly of smaller units. The most massive objects therefore form last. The model succeeds in describing the...

The Gemini Deep Deep Survey I: introduction to the survey, catalogs, and composite spectra (2004)

Abraham, Roberto G., Glazebrook, Karl, McCarthy, Patrick J., Crampton, David, Murowinski, Richard, Jorgensen, Inger, ...

The Gemini Deep Deep Survey (GDDS) is an ultradeep (K < 20.6 mag, I < 24.5 mag) redshift survey targeting galaxies in the "redshift desert" between z = 1 and z = 2. The primary goal of the...

The Gemini Deep Deep Survey II: metals in star-forming galaxies at redshift 1.3 less than z less than 2 (2004)

Savaglio, Sandra, Glazebrook, Karl, Abraham, Roberto G., Crampton, David, Chen, Hsiao-Wen, McCarthy, Patrick J., ...

The goal of the Gemini Deep Deep Survey (GDDS) is to study an unbiased sample of K < 20.6 galaxies in the redshift range 0.8 < z < 2.0. Here we determine the statistical properties of the...

Evolved galaxies at z greater than 1.5 from the Gemini Deep Deep survey: the formation epoch of massive stellar systems (2004)

McCarthy, Patrick J., Le Borgne, Damien, Crampton, David, Chen, Hsiao-Wen, Abraham, Roberto G., Glazebrook, Karl, ...

We present spectroscopic evidence from the Gemini Deep Deep Survey for a significant population of color-selected red galaxies at 1.3 < z, < 2.2 whose integrated light is dominated by evolved...

A high abundance of massive galaxies 3-6 billion years after the Big Bang (2004)

Glazebrook, Karl, Abraham, Roberto G., McCarthy, Patrick J., Savaglio, Sandra, Chen, Hsiao-Wen, Crampton, David, ...

Hierarchical galaxy formation is the model whereby massive galaxies form from an assembly of smaller units. The most massive objects therefore form last. The model succeeds in describing the...

Hubble Space Telescope Observations of cD Galaxies and their Globular Cluster Systems (2003)

Jordan, Andres, Cote, Patrick, West, Michael J., Marzke, Ronald O., Minniti, Dante, Rejkuba, Marina

We have used WFPC2 on the Hubble Space Telescope to obtain F450W and F814W images of four cD galaxies (NGC 541 in Abell 194, NGC 2832 in Abell 779, NGC 4839 in Abell 1656 and NGC 7768 in Abell 2666)...

Intergalactic Globular Clusters (2003)

West, Michael J., Cote, Patrick, Ferguson, Henry C., Gregg, Michael D., Jordan, Andres, Marzke, Ronald O., ...

We confirm and extend our previous detection of a population of intergalactic globular clusters in Abell 1185, and report the first discovery of an intergalactic globular cluster in the nearby Virgo...

A Point Source Excess in Abell 1185: Intergalactic Globular Clusters? (2003)

Jordan, Andres, West, Michael J., Cote, Patrick, Marzke, Ronald O.

Deep imaging with WFPC2 and the Hubble Space Telescope has been used to search for a population of intergalactic globular clusters (GCs) belonging to Abell 1185, a richness I cluster at cz = 9800...

Evidence for the Hierarchical Formation of the Galactic Spheroid (1999)

Cote, Patrick, Marzke, Ronald O., West, Michael J., Minitti, Dante

The possibility that the Galactic spheroid was assembled from numerous chemically-distinct, proto-Galactic fragments is investigated using a Monte-Carlo technique designed to simulate the chemical...

The Formation of Giant Elliptical Galaxies and Their Globular Cluster Systems (1998)

Cote, Patrick, Marzke, Ronald O., West, Michael J.

The bimodal globular cluster (GC) metallicity distributions of many giant elliptical galaxies are often cited as evidence for the formation of such galaxies through mergers involving gas-rich...

An Einstein X-ray Survey of Optically-Selected Galaxies: I. Data (1996)

Burstein, David, Jones, Christine, Forman, William, Marston, Anthony P., Marzke, Ronald O.

We present the results of a complete Einstein Imaging Proportional Counter (IPC) X-ray survey of optically-selected galaxies from Shapley-Ames Catalog, Uppsala General Catalog and the European...

Compact Group Selection From Redshift Surveys (1996)

Barton, Elizabeth, Geller, Margaret J., Ramella, Massimo, Marzke, Ronald O., Da Costa, L. Nicolaci

For the first time, we construct a catalog of compact groups selected from a complete, magnitude-limited redshift survey. We select groups with $N \geq 3$ members based on projected separation and...

Intracluster Globular Clusters (1995)

West, Michael J., Cote, Patrick, Jones, Christine, Forman, William, Marzke, Ronald O.

Globular cluster populations of supergiant elliptical galaxies are known to vary widely, from extremely populous systems like that of UGC 9799, the centrally dominant galaxy in Abell 2052, to...