510 citations · 3.9k across the 72 of their papers we have counts for
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STAGES: the Space Telescope A901/2 Galaxy Evolution Survey
M. E. Gray, Christian Wolf, Marco Barden +26
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 ac…
The STAGES view of red spirals and dusty red galaxies: Mass-dependent quenching of star-formation in cluster infall
Christian Wolf, Alfonso Aragon-Salamanca, Michael Balogh +22
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…
Near-Infrared spectral diagnostics for unresolved stellar population galaxies
M. Cesetti, V. D. Ivanov, L. Morelli
We want to develop spectral diagnostics of stellar populations in the near-infrared (NIR), for unresolved stellar populations. We created a semi-empirical population model and we c…
Obscured star formation in intermediate-density environments: A Spitzer study of the Abell 901/902 supercluster
A. Gallazzi, E. F. Bell, C. Wolf +23
We explore the amount of obscured star-formation as a function of environment in the A901/902 supercluster at z=0.165 in conjunction with a field sample drawn from the A901 and CDF…
Characterizing Barred Galaxies in the Abell 901/902 Supercluster
I. Marinova, S. Jogee, D. Bacon +22
In dense clusters, higher densities at early epochs as well as physical processes, such as ram pressure stripping and tidal interactions become important, and can have direct conse…
Morphological Transformations of Galaxies in the A901/02 Supercluster from STAGES
A. L. Heiderman, S. Jogee, D. J. Bacon +23
We present a study of galaxies in the Abell 901/902 Supercluster at z~0.165, based on HST ACS F606W, COMBO-17, Spitzer 24um, XMM-Newton X-ray, and gravitational lensing maps, as pa…
The dark matter environment of the Abell 901/902 supercluster: a weak lensing analysis of the HST STAGES survey
Catherine Heymans, Meghan E. Gray, Chien Y. Peng +21
We present a high resolution dark matter reconstruction of the z=0.165 Abell 901/902 supercluster from a weak lensing analysis of the HST STAGES survey. We detect the four main str…
Environmental dependence of AGN activity in the supercluster A901/2
R. Gilmour, M. E. Gray, O. Almaini +5
We present XMM data for the supercluster A901/2, at z ~ 0.17, which is combined with deep imaging and 17-band photometric redshifts (from the COMBO-17 survey), 2dF spectra and Spit…
Galaxy morphologies and environment in the Abell 901/902 supercluster from COMBO-17
K. P. Lane, M. E. Gray, A. Aragon-Salamanca +2
We present a morphological study of galaxies in the A901/902 supercluster from the COMBO-17 survey. A total of 570 galaxies with photometric redshifts in the range 0.155 < z_phot <…
Morphology-dependent trends of galaxy age with environment in Abell 901/902 seen with COMBO-17
C. Wolf, M. E. Gray, A. Aragon-Salamanca +2
We investigate correlations between galaxy age and environment in the Abell 901/2 supercluster for separate morphologies. Using COMBO-17 data, we define a sample of 530 galaxies, c…
Cosmological constraints from COMBO-17 using 3D weak lensing
T. D. Kitching, A. F. Heavens, A. N. Taylor +5
We present the first application of the 3D cosmic shear method developed in Heavens et al. (2006) and the geometric shear-ratio analysis developed in Taylor et al. (2006), to the C…
Red-sequence galaxies with young stars and dust: The cluster Abell 901/902 seen with COMBO-17
C. Wolf, M. E. Gray, K. Meisenheimer
We report the discovery of a rich component of dusty star-forming galaxies contaminating the red-sequence in the supercluster system comprising Abell 901a, 901b and A902 at redshif…
The Shear TEsting Programme 1: Weak lensing analysis of simulated ground-based observations
Catherine Heymans, Ludovic Van Waerbeke, David Bacon +22
The Shear TEsting Programme, STEP, is a collaborative project to improve the accuracy and reliability of all weak lensing measurements in preparation for the next generation of wid…
A catalogue of the Chandra Deep Field South with multi-colour classification and photometric redshifts from COMBO-17
C. Wolf, K. Meisenheimer, M. Kleinheinrich +9
We present the COMBO-17 object catalogue of the Chandra Deep Field South for public use, covering a field which is 31.5' x 30' in size. This catalogue lists astrometry, photometry…
Evolution of the Dark Matter Distribution with 3-D Weak Lensing
D. J. Bacon, A. N. Taylor, M. L. Brown +7
We present a direct detection of the growth of large-scale structure, using weak gravitational lensing and photometric redshift data from the COMBO-17 survey. We use deep R-band im…
Mapping the 3-D dark matter with weak lensing in COMBO-17
A. N. Taylor, D. J. Bacon, M. E. Gray +7
We present a 3-dimensional lensing analysis of the z=0.16 supercluster A901/2, resulting in a 3-D map of the dark matter distribution within a 3 X 10^{5} [Mpc]^3 volume from the CO…
Linking star-formation and enivronment in the A901/902 supercluster
M. E. Gray, C. Wolf, K. Meisenheimer +4
We investigate correlations between the location of galaxies in dense environments and their degree of star-formation activity. Using photometric redshifts and spectral classificat…
The shear power spectrum from the COMBO-17 survey
M. L. Brown, A. N. Taylor, D. J. Bacon +4
We perform a cosmic shear analysis of the COMBO-17 survey -- a unique dataset with shear quality R-band imaging and accurate photometric redshift estimates (dz=0.05) for ~90% of ga…
Infrared constraints on the dark mass concentration observed in the cluster Abell 1942
Meghan E. Gray, Richard S. Ellis, James R. Lewis +2
We present a deep H-band image of the region in the vicinity of the cluster Abell 1942 containing the puzzling dark matter concentration detected in an optical weak lensing study b…
Infrared observations of gravitational lensing in Abell 2219 with CIRSI
Meghan E. Gray, Richard S. Ellis, Alexandre Refregier +5
We present the first detection of a gravitational depletion signal at near-infrared wavelengths, based on deep panoramic images of the cluster Abell 2219 (z=0.22) taken with the Ca…
Strong and weak lensing analysis of cluster Abell 2219 based on optical and near infrared data
J. Bezecourt, H. Hoekstra, M. E. Gray +3
We present a gravitational lensing study of the massive galaxy cluster A2219 (redshift 0.22). This investigation is based on multicolour images from U through H, which allows photo…
GHRS Monitoring of the Outflowing Material in NGC 4151
Ray J. Weymann, Simon L. Morris, Meghan E. Gray +1
We present the results of a GHRS program to monitor the absorption lines in the spectrum of the Seyfert 1 galaxy NGC 4151 caused by outflowing gas from the nucleus. Although we see…