The distant radio galaxy B2 0902+343: a powerful obscured active galaxy

Details The distant radio galaxy B2 0902+343: a powerful obscured active galaxy The distant radio galaxy B2 0902+343: a powerful obscured active galaxy

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007xmm..prop..125f&link_type=abstract

XMM-Newton Proposal ID #05541801

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, B2 0902+343, Xmm-Newton Proposal Id #05541801

Scientific paper

We propose to observe the highly X-ray luminous z=3.395 radio galaxy B2 0902+343, detected by us with Chandra in a short 10 ks exposure. The unresolved X-ray source is centred on the active nucleus, the spectrum of which is too flat (photon index 0.68) to be unabsorbed and is consistent with being the most luminous, highly-absorbed source yet reported. A recent, short XMM-pn exposure shows that it has a 2-sigma ionized iron line, possibly related to the AGN-induced end of the early obscured phase of massive young galaxies. We aim to improve the significance of the line to over 4 sigma, making it one of the most distant X-ray lines yet detected.

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