Observations of a z~0.9 cluster of galaxies

Details Observations of a z~0.9 cluster of galaxies Observations of a z~0.9 cluster of galaxies

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248..302u&link_type=abstract

X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer

Astronomy and Astrophysics

Astronomy

Clusters Of Galaxies, Redshift, Interstellar Matter, Galactic Nuclei, Brightness, Galaxy Clusters, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Interstellar Dust Grains, Diffuse Emission, Infrared Cirrus, Galactic Nuclei, Circumnuclear Matter, And Bulges, Magnitudes And Colors, Luminosities

Scientific paper

We present a multi-wavelength study on a z~0.9, Cl 1257+4738. The cluster Cl 1257+4738 was found by comparing a ROSAT image with red ground based images, taken to determine if the red galaxies were young dusty ones or old early type galaxies. This adds another cluster to the handful of clusters with z larger than about 0.9. Each one provides new insights as to the relationship between the evolution of galaxies and the ICM. We acquired Chandra, XMM-Newton, Spitzer IRAC plus MIPS 24 data to study this relationship between galaxies and the ICM. The Chandra plus Spitzer and ground-based data gave us the unique opportunity to find candidate galaxies and AGNs that could be at redshifts from 3 up to as high as 10.

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