X-ray Signatures of Accretion in AGNs with Intermediate-mass Black Holes

Details X-ray Signatures of Accretion in AGNs with Intermediate-mass Black Holes X-ray Signatures of Accretion in AGNs with Intermediate-mass Black Holes

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cxo..prop.2869h&link_type=abstract

Chandra proposal ID #11700259

Computer Science

Scientific paper

Supermassive (10^6-10^9 solar mass) black holes (BHs) are closely linked with the evolution of early-type galaxies. Our group has discovered a new class of AGNs with intermediate-mass (10^4-10^6 solar mass) BHs in late-type galaxies. These objects offer important clues to the nature of the seeds of quasars, and their mergers may produce significant gravity waves. We have started to systematically study their multiwavelength properties. A pilot Chandra program revealed that they are unusually X-ray bright, possibly because their low BH masses and high accretion rates sustain a slim accretion disk. We propose to extend and confirm our preliminary results by performing a comprehensive survey of the X-ray properties of a larger sample of this new class of AGNs.

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