Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21840805t&link_type=abstract
American Astronomical Society, AAS Meeting #218, #408.05; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
Combination of X-ray with sub-mm observations provides the most robust constraints on the star-formation of AGN to test competing models for the interplay between galaxy formation and black hole growth. The Herschel Multi-tiered Extragalactic Survey (HerMES), the largest project that will ever be performed with Herschel, is ideally suited to studying star formation over the z=1-3 epoch. Here we will present the X-ray/sub-mm properties of the HerMES/Lockman sources detected by Chandra. Less than 25% of the X-ray sources have a 250µm counterpart. The majority of the latter (>50%) are AGN dominated in X-rays. A key finding is that the hardness ratio distributions of the 250µm detected and undetected sources imply a strong connection between X-ray absorption and rapid star-formation in AGN. The prevalence of X-ray absorption in star-forming AGN suggests an alternative source of absorbing material, perhaps related to the gas which is fuelling the star- formation or to outowing material from the early stages of AGN feedback.
Herschel Multi-Tiered Extragalactic Survey
Page Mat
Trichas Markos
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