Quiescent Supermassive Black Holes

Details Quiescent Supermassive Black Holes Quiescent Supermassive Black Holes

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1272f&link_type=abstract

Chandra Proposal ID #04700486

Physics

Chandra Proposal Id #04700486

Scientific paper

We propose to observe 5 elliptical galaxies with ACIS-S to study the lowest levels of nuclear activity. These galaxies all have measurements of nuclear black hole masses (ranging from 5E7 to 6E8 M-sun) but no evidence of radio or optical nuclear activity. The observations will be sensitive to nuclear emission down to 2E38 erg/s, which is of order 1E-8 L-Edd in our targets, and estimate the Bondi luminosity down to of order 1E-4 L-Edd. These results will provide tight constraints on the feeding and energy balance of supermassive black holes. We will combine these results with archival Chandra data to check the Ho and Peng radio-loudness/activity relation.

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