Tasca, L. A. M., Kneib, J. P., Iovino, A., Fevre, O. Le, Kovac, K., Bolzonella, M., ...
For more than two decades we have known that galaxy morphological segregation is present in the Local Universe. It is important to see how this relation evolves with cosmic time. To investigate how...
Mentuch, E., Abraham, R. G., Glazebrook, K., McCarthy, P. J., Yan, H., O'Donnell, D. 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
Optical selection of faint active galactic nuclei in the COSMOS field (2008)
Casey, C. M., Impey, C. D., Trump, J. R., Gabor, J., Abraham, R. G., Capak, P., ...
We outline a strategy to select faint (i_(AB)
Optical Selection of Faint AGN in the COSMOS Field (2008)
Casey, C. M., Impey, C. D., Trump, J. R., Gabor, J., Abraham, R. G., Capak, P., ...
We outline a strategy to select faint (i
Optical selection of faint active galactic nuclei in the COSMOS field (2008)
Casey, C. M., Impey, C. D., Trump, J. R., Gabor, J., Abraham, R. G., Capak, P., ...
Optical selection of faint active galactic nuclei in the COSMOS field (2008)
Casey, C. M., Impey, C. D., Trump, J. R., Gabor, J., Abraham, R. G., Capak, P., ...
We outline a strategy to select faint (iAB
Hardy Jones, L R Jones, M R Merrifield, K O Mason, A M Newsam, R G Abraham, ...
We present the results of the deepest optically identified X-ray survey yet made. The X-ray survey was made with the ROSAT PSPC and reaches a flux limit of 1:6 \Theta 10 \Gamma15 erg cm \Gamma2 s...
Galaxy Evolution in the z=0.4274 Cluster MS1621.5+2640 (2007)
Simon Morris, J. B. Hutchings, R. G. Carlberg, Erica Ellingson, Mike L. Balogh, ...
We discuss the galaxy population of the rich cluster MS1621.5+2640 at z=0.4274, based on spectra and imaging in a field of size 9 arcmin by 23 arcmin (¸2 by 5 h \Gamma1 Mpc). The sample comprises...
X-ray QSO evolution from a very deep ROSAT survey (2007)
Jones Hardy, M R Merrifield, K O Mason, P J Smith, R G Abraham, A M Newsam, ...
In the deepest optically identified X-ray survey yet performed, we have identified 32 X-ray selected QSOs to a flux limit of 2 \Theta 10 \Gamma15 erg cm \Gamma2 s \Gamma1 (0.5-2 keV). The survey,...
The effects of environment on morphological evolution between 0 (2007)
Capak, P. L., Abraham, R. G., Ellis, R. S., Mobasher, B., Scoville, N. Z., Sheth, K., ...
We explore the evolution of the morphology density relation using the COSMOS-ACS survey and previous cluster studies. The Gini parameter measured in a Petrosian aperture is found to be an effective...
A Compact Cluster of Massive Red Galaxies at a Redshift of 1.51 (2007)
McCarthy, P. J., Yan, H., Abraham, R. G., Mentuch, E., Glazebrook, K., Yan, L., ...
We describe a compact cluster of massive red galaxies at z=1.51 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep imaging with the Near Infrared Camera and Multi Object...
COSMOS: Hubble space telescope observations (2007)
Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., ...
COSMOS: Hubble Space Telescope observations (2007)
Scoville, N., Abraham, R. G., Aussel, H., Barnes, J. E., Benson, A., Blain, A. W., ...
The Cosmic Evolution Survey (COSMOS) was initiated with an extensive allocation (590 orbits in Cycles 12-13) using the Hubble Space Telescope (HST) for high-resolution imaging. Here we review the...
Optical and Near-Infrared Observations of the Peculiar Type Ia Supernova 1999ac (2006)
Phillips, Mark M., Krisciunas, Kevin, Suntzeff, Nicholas B., Abraham, R. G., Beckett, M. G., Bonati, M., ...
We present 39 nights of optical photometry, 34 nights of infrared photometry, and 4 nights of optical spectroscopy of the Type Ia SN 1999ac. This supernova was discovered two 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...
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...
The mass-metallicity relation at z ~0.7 (2005)
Savaglio, S., Glazebrook, K., Le Borgne, D., Juneau, S., Abraham, R. G., Crampton, D., ...
The ISM metallicity and the stellar mass are examined in a sample of 66 galaxies at 0.4 < z < 1, selected from the Gemini Deep Deep Survey (GDDS) and the Canada-France Redshift Survey (CFRS)....
The mass-metallicity relation at z ~0.7 (2005)
Savaglio, S., Glazebrook, K., Le Borgne, D., Juneau, S., Abraham, R. G., Crampton, D., ...
The ISM metallicity and the stellar mass are examined in a sample of 66 galaxies at 0.4 < z < 1, selected from the Gemini Deep Deep Survey (GDDS) and the Canada-France Redshift Survey (CFRS)....
Cosmic Star Formation History and its Dependence on Galaxy Stellar Mass (2004)
Juneau, S., Glazebrook, K., Crampton, D., McCarthy, P. J., Savaglio, S., Abraham, R. G., ...
We examine the cosmic star formation rate (SFR) and its dependence on galaxy stellar mass over the redshift range 0.8 < z < 2 using data from the Gemini Deep Deep Survey (GDDS). The SFR in the most...
H-alpha kinematics of a z ~ 1 disc galaxy from near-IR integral field spectroscopy (2004)
Smith, J. K., Bunker, A. J., Vogt, N. P., Abraham, R. G., Aragon-Salamanca, A., Bower, R. G., ...
In this letter we present the first 3D spectroscopic study of H-alpha emission in a z ~ 1 field galaxy with an integral field unit. Using the CIRPASS spectrograph on Gemini-South we map the spatial...
Three Ly alpha emitters at z ≈ 6: early GMOS/Gemini data from the GLARE project (2004)
Stanway, Elizabeth R., Glazebrook, Karl, Bunker, Andrew J., Abraham, R. G., Hook, Isobel, Rhoads, James, ...
We report spectroscopic detection of three z ∼ 6 Lyα-emitting galaxies, in the vicinity of the Hubble Ultra Deep Field, from the early data of the Gemini Lyman Alpha at Reionisation Era...
Three Ly alpha emitters at z ≈ 6: early GMOS/Gemini data from the GLARE project (2004)
Stanway, Elizabeth R., Glazebrook, Karl, Bunker, Andrew J., Abraham, R. G., Hook, Isobel, Rhoads, James, ...
We report spectroscopic detection of three z ∼ 6 Lyα-emitting galaxies, in the vicinity of the Hubble Ultra Deep Field, from the early data of the Gemini Lyman Alpha at Reionisation Era (GLARE)...
The Gemini Deep Deep Survey: II. Metals in Star-Forming Galaxies at Redshift 1.3 (2003)
Savaglio, S., Glazebrook, K., Abraham, R. G., Crampton, D., Chen, H. W., McCarthy, P. J. P., ...
The goal of the Gemini Deep Deep Survey (GDDS) is to study an unbiased sample of K
Chen, Hsiao-Wen, Marzke, Ronald. O., McCarthy, Patrick. J., Martini, P., Carlberg, R. G., Persson, S. E., ...
(Abridged) We present rest-frame R-band galaxy luminosity function measurements for three different redshift ranges: 0.5
Morphological Classification of the OSU Bright Spiral Galaxy Survey (2002)
Whyte, L. F., Abraham, R. G., Merrifield, M. R., Eskridge, P. B., Frogel, J. A., Pogge, R. W.
To quantify the distribution of bar shapes in spiral galaxies, we have analysed 113 H-band and 89 B-band galaxy images from the Ohio State University Bright Spiral Galaxy Survey. Parameters measuring...
Manufacturing Methods and Engineering for TFT Addressed Display. (2002)
Abraham,R. G., Csakvary,T., Davies,D. H., Green,M., Rogers,W. L.
This is the first quarterly report on manufacturing methods and technology evaluation for the fabrication of a thin film transistor bases solid state display panel. A description is given of the...
The z ~ 1.2 Galaxy Luminosity Function from The LCIR Survey (2001)
McCarthy, P. J., Marzke, R. O., Carlberg, R. G., Firth, A. E., Persson, S. E., ...
We present results from the Las Campanas Infrared Survey, designed to identify a statistically significant sample of z>=1 galaxies using photometric redshift techniques. Here we summarize the design...
Firth, A. E., Somerville, R. S., McMahon, R. G., Lahav, O., Ellis, R. S., Sabbey, C. N., ...
The LCIR Survey, using the Cambridge IR Survey Instrument (CIRSI), reaches H \~ 20-21 over ~1 deg^2. We present results for 744 arcmin^2 in which public UBVRI data exist. We compare optical-IR...
Chen, Hsiao-Wen, McCarthy, P. J., Marzke, R. O., Wilson, J., Carlberg, R. G., Firth, A. E., ...
(Abridged) The Las Campanas Infrared Survey, based on broad-band optical and near-infrared photometry, is designed to robustly identify a statistically significant and representative sample of...
The Las Campanas IR Survey: Early Type Galaxy Progenitors Beyond Redshift One (2001)
McCarthy, P. J., Carlberg, R. G., Marzke, R. O., Firth, A. E., Ellis, R. S., ...
(Abridged) We have identified a population of faint red galaxies from a 0.62 square degree region of the Las Campanas Infrared Survey whose properties are consistent with their being the progenitors...
Quantifying Morphological Evolution from Low to High Redshifts (2000)
Establishing the morphological history of ordinary galaxies was one of the original goals for the Hubble Space Telescope, and remarkable progress toward achieving this this goal has been made. How...
Mapping the gas kinematics and ionization structure of four ultraluminous IRAS galaxies (1999)
Wilman, R. J., Crawford, C. S., Abraham, R. G.
(Abridged) We analyse the morphology, kinematics and ionization structure of the extended emission-line regions in four ULIRGs at 0.118
Emission line galaxies at 1 less than z less than 1.5 (1999)
Glazebrook, Karl, Abraham, R. G., Blake, C. A.
Abstract not available.
Emission line galaxies at 1 less than z less than 1.5 (1999)
Glazebrook, Karl, Abraham, R. G., Blake, C. A.
Abstract not available.
Menanteau, F., Ellis, R. S., Abraham, R. G., Barger, A. J., Cowie, L. L.
In hierarchical models, where spheroidals are primarily produced via the merger of disk galaxies, the number of intrinsically red systems at faint limits will be substantially lower than that...
The Evolution of Barred Spiral Galaxies in the Hubble Deep Fields North and South (1998)
Abraham, R. G., Merrifield, M. R., Ellis, R. S., Tanvir, N., Brinchmann, J.
The frequency of barred spiral galaxies as a function of redshift contains important information on the gravitational influence of stellar disks in their dark matter halos and also may distinguish...
Perspectives in Physical Morphology (1998)
In the first section of these lectures I outline the classical framework of the Hubble classification system. Because of space limitations I will focus on points of controversy concerning the...
Abraham, R. G., Ellis, R. S., Fabian, A. C., Tanvir, N. R., Glazebrook, K.
We analyse the spatially resolved colours of distant galaxies of known redshift in the Hubble Deep Field, using a new technique based on matching resolved four-band internal colour data to the...
Galaxy Evolution in the z=0.4274 Cluster MS1621.5+2640 (1998)
Morris, S. L., Hutchings, J. B., Carlberg, R. G., Yee, H. K. C., Ellingson, E., Balogh, M. L., ...
We discuss the galaxy population of the rich cluster MS1621.5+2640 at z=0.4274, based on spectra and imaging in a field of size 9 arcmin by 23 arcmin (~2 by 5 h**-1 Mpc). The sample comprises 277...
A Review of High Redshift Merger Observations (1998)
Evolution in the merger rate as a function of redshift is in principle the key observable testing hierarchical models for the formation and evolution of galaxies. However, in practice, direct...
Quantitative Morphology at High Redshifts (1998)
The current evidence for morphologically peculiar galaxy populations at high-redshifts is outlined. After describing various techniques which can be used to quantify the importance of ``morphological...
McHardy, I. M., Jones, L. R., Merrifield, M. R., Mason, K. O., Abraham, R. G., Newsam, A. M., ...
We present the results of the deepest optically identified X-ray survey yet made. The X-ray survey was made with the ROSAT PSPC and reaches a flux limit of 1.6x10^-15 erg cm^-2 s^-1 (0.5--2.0 keV)....
X-ray QSO evolution from a very deep ROSAT survey (1996)
Jones, L. R., McHardy, I. M., Merrifield, M. R., Mason, K. O., Smith, P. J., Abraham, R. G., ...
In the deepest optically identified X-ray survey yet performed, we have identified 32 X-ray selected QSOs to a flux limit of 2x10^{-15} erg cm^{-2} s^{-1} (0.5-2 keV). The survey, performed with the...
Galaxy Evolution in Abell 2390 (1996)
Abraham, R. G., Smecker-Hane, T. A., Hutchings, J. B., Carlberg, R. G., Yee, H. K. C., Ellingson, E., ...
The galaxy population in the intermediate-redshift ($z=0.228$) rich cluster Abell 2390 is investigated. We present velocities, colors, and morphological information for an exceptionally large sample...
Galaxy morphology to I=25 mag in the Hubble Deep Field (1996)
Abraham, R. G., Tanvir, N. R., Santiago, B. X., Ellis, R. S., Glazebrook, K., Bergh, S. Van Den
The morphological properties of galaxies between $21 {\rm~mag} < I < 25 {\rm~mag}$ in the {\em Hubble Deep Field} are investigated using a quantitative classification system based on measurements of...
A Supernova at z = 0.458 and Implications for Measuring the Cosmological Deceleration (1995)
Perlmutter, S., Pennypacker, C. R., Goldhaber, G., Goobar, A., Muller, R. A., Newberg, H. J. M., ...
We have begun a program to discover high-redshift supernovae ($z \approx$ 0.25--0.5), and study them with follow-up photometry and spectroscopy. We report here our first discovery, a supernova at $z...