X-ray Properties of AGNs with Intermediate-mass Black Holes: Part II

Details X-ray Properties of AGNs with Intermediate-mass Black Holes: Part II X-ray Properties of AGNs with Intermediate-mass Black Holes: Part II

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2194h&link_type=abstract

Chandra Proposal ID #08700135

Physics

Chandra Proposal Id #08700135

Scientific paper

Supermassive (10^6-10^9 solar mass) black holes (BHs) are thought to be closely linked with the formation and evolution of large galaxies, especially their bulge component. Can BHs holes form in the absence of a bulge? Does the mass function of BHs extend below 10^6 solar masses? Intermediate-mass BHs (10^4-10^6 solar masses) may offer important clues to the nature of the seeds of supermassive BHs, but while they have been found in a couple of nearby AGNs, their frequency is unknown. We have used the SDSS to identify a sample of 19 AGNs powered by intermediate-mass BHs. This is the first and only sample of its kind, which can be used to explore accretion physics in a new mass regime; we propose to complete our census of the sample's basic X-ray properties.

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