Black Hole Growth and Host Galaxy Morphology: Two Different Evolutionary Pathways

Details Black Hole Growth and Host Galaxy Morphology: Two Different Evolutionary Pathways Black Hole Growth and Host Galaxy Morphology: Two Different Evolutionary Pathways

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21820604s&link_type=abstract

American Astronomical Society, AAS Meeting #218, #206.04; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Studies of large samples of SDSS galaxies and AGN host galaxies divided by morphology reveal two fundamentally different evolutionary pathways leading to black hole growth in early- and late-type galaxies. In early-type galaxies, it is preferentially the galaxies with the least massive black holes that are growing, while in late-type galaxies, it is preferentially the most massive black holes that are growing. Stellar population studies furthermore reveal that early-type AGN host galaxies are post-starburst systems, while late-type hosts did not experience any recent quenching of star formation.

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