The Evolution of Radio Galaxies and X-ray Point Sources in Coma Cluster Progenitors Since z~1.2

Details The Evolution of Radio Galaxies and X-ray Point Sources in Coma Cluster Progenitors Since z~1.2 The Evolution of Radio Galaxies and X-ray Point Sources in Coma Cluster Progenitors Since z~1.2

2011-07-10

arxiv.org/abs/1107.1867v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

30 pages; 10 figures; 11 tables; Accepted for publication in ApJ

Scientific paper

Using Chandra imaging spectroscopy and Very Large Array (VLA) L-band radio maps, we have identified radio sources at P_{1.4GHz} >=5x10^{23} W Hz^{-1} and X-ray point sources (XPSs) at L_{0.3-8keV}>=5x10^{42} erg s^{-1} in L>L* galaxies in 12 high-redshift (0.40.4 cluster fields, the increased numbers and luminosities of the CRS radio galaxies and XPSs suggest a substantial (9-10 fold) increase in the heat injected into high redshift clusters by AGN compared to the present epoch.

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