Georganopoulos, Markos, Sambruna, Rita M., Kazanas, Demosthenes, Cillis, Analia N., Cheung, Chi C., Perlman, Eric S., ...
We describe a new method for measuring the extragalactic background light (EBL) through the detection of $\gamma$-ray inverse Compton (IC) emission due to scattering of the EBL photons off...
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 Two-dimensional XMM-Newton Group Survey: z (2006)
Finoguenov, Alexis, Davis, David S., Zimer, Marc, Mulchaey, John S.
We present the results of the 2-dimensional XMM-Newton Group Survey (2dXGS), an archival study of nearby galaxy groups. In this paper we consider eleven nearby systems (z
The two-dimensional XMM-Newton group survey: z < 0.012 groups (2006)
Finoguenov, Alexis, Davis, David S., Zimer, Marc, Mulchaey, John S.
Substructure Analysis of Selected Low Richness 2dFGRS Clusters of Galaxies (2004)
Burgett, William S., Vick, Michael M., Davis, David S., Colless, Matthew, De Propris, Roberto, Baldry, Ivan, ...
Complementary one-, two-, and three-dimensional tests for detecting the presence of substructure in clusters of galaxies are applied to recently obtained data from the 2dF Galaxy Redshift Survey. The...
XMM-Newton survey of IGM: news for the modified entropy scaling (2004)
Finoguenov, Alexis, Borgani, Stefano, Davis, David S., Mulchaey, John S., Osmond, John P. F., Ponman, Trevor J., ...
Substructure analysis of selected low-richness 2dFGRS clusters of galaxies (2004)
Burgett, William S., Vick, Michael M., Davis, David S., Colless, Matthew, De Propris, Roberto, Baldry, Ivan, ...
Complementary one-, two- and three-dimensional tests for detecting the presence of substructure in clusters of galaxies are applied to recently obtained data from the 2dF Galaxy Redshift Survey. The...
XMM Observations of an IXO in NGC 2276 (2003)
Davis, David S., Mushotzky, Richard F.
We present the results from a ~53 ksec XMM observation of NGC 2276. This galaxy has an unusual optical morphology with the disk of this spiral appearing to be truncated along the western edge. This...
An X-ray Atlas of Groups of Galaxies (2003)
Mulchaey, John S., Davis, David S., Mushotzky, Richard F., Burstein, David
A search was conducted for a hot intragroup medium in 109 low-redshift galaxy groups observed with the ROSAT PSPC. Evidence for diffuse, extended X-ray emission is found in at least 61 groups....
Matsumoto, Hironori, Tsuru, Takeshi Go, Fukazawa, Yasushi, Hattori, Makoto, Davis, David S.
We have analyzed the ASCA data of 29 nearby clusters of galaxies systematically, and obtained temperatures, iron abundances, and X-ray luminosities of their intracluster medium (ICM). We also...
Reconstructing the Merger History of the A3266 Galaxy Cluster (1999)
Henriksen, Mark, Donnelly, R. Hank, Davis, David S.
A temperature map of the A3266 galaxy cluster has been derived from the ASCA GIS observations. It shows an asymmetric pattern of heating indicative of an ongoing merger between a group sized...
Apparatus for Multiplexed Imaging Using Optically-Generated Kronecker Products. (1998)
A new type of fully multiplexed imaging device is described for use at wavelengths where efficient focal plane array detectors are unavailable. It shares some properties in common with the familiar...
The Enrichment History of Hot Gas in Poor Galaxy Groups (1998)
Davis, David S., Mulchaey, John S., Mushotzky, Richard F.
We have analyzed the ASCA SIS and GIS data for seventeen groups and determined the average temperature and abundance of the hot x-ray emitting gas. For groups with gas temperatures less than 1.5 keV...
An X-Ray Temperature Map of the Merging Cluster Abell 2255 (1997)
Davis, David S., White III, Raymond E.
We present a spatially resolved map of intracluster gas temperatures in the rich cluster Abell 2255, using ROSAT PSPC data. The intracluster gas is strongly non-isothermal and the temperature...
Gravitational Interactions in Poor Galaxy Groups (1997)
Davis, David S., Keel, William C., Mulchaey, John S., Henning, Patricia A.
We report the results of the spatial analysis of deep ROSAT HRI observations, optical imaging and spectroscopy, and high-resolution VLA H I and continuum imaging of NGC 1961 and NGC 2276. These...
ROSAT Temperatures and Abundances for a Complete Sample of Elliptical Galaxies (1996)
Davis, David S., White III, Raymond E.
We determine X-ray temperatures and abundances for elliptical galaxies drawn from a complete, optically selected sample. The optical magnitude-limited sample consists of 43 galaxies, complete to a...
X-Ray Emission from M32: X-Ray Binaries or a micro-AGN? (1996)
Eskridge, Paul B., White III, Raymond E., Davis, David S.
We have analysed archival {\it ROSAT} PSPC data for M32 in order to study the x-ray emission from this nearest elliptical galaxy. We fit spectra from three long exposures with Raymond-Smith, thermal...
X-ray substructure in a flux-limited catalog of clusters of galaxies /--David Samuel Davis. (1994)
"X-ray : 95-10."
Spine title: Relationship of frustration tolerance in paraplegics.