Demographics of black holes in the local Universe.

Details Demographics of black holes in the local Universe. Demographics of black holes in the local Universe.

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2212m&link_type=abstract

Chandra Proposal ID #08700652

Computer Science

Chandra Proposal Id #08700652

Scientific paper

Recent observations imply that at redshift zero, most of the nuclear activity must reside in low mass galaxies, preferentially late-type spirals and dwarf ellipticals. We propose to search for low-level nuclear activity in a representative sample of low-mass galaxies within 20Mpc. This study will allow us to set lower limits to the number of galaxies which host low-mass supermassive black holes (SBH) (<10^7 M_sun, pushing the limit of known SBHs down to 10^4 M_sun), and explore the correlation between low level X-ray activity and galaxy morphology. In particular, we will be able to determine to what extent the presence/morphology of a bulge component influences SBH formation. These issues have important consequences toward understanding the formation and co-evolution of SBHs and galaxies.

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