Discovery of supermassive black holes in normal galaxies

Details Discovery of supermassive black holes in normal galaxies Discovery of supermassive black holes in normal galaxies

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1248..241m&link_type=abstract

X-RAY ASTRONOMY 2009; PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES: Proceedings of the International Confer

Astronomy and Astrophysics

Astronomy

Black Holes, X-Ray Sources (Astronomical), Dark Matter, Brightness, Accretion Disks, Black Holes, X-Ray Sources, X-Ray Bursts, Dark Matter, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Accretion And Accretion Disks

Scientific paper

We demonstrate the feasibility of discovering supermassive black hole (SMBHs) in ``normal'' spiral galaxies using a combination of X-ray selection and multi-wavelength follow-up. We carried out a Chandra survey of nearly face-on spiral galaxies and uncovered a population of low-mass SMBHs providing a way to investigate the low-mass end of the local BH mass function. We were sensitive to Eddington luminosity ratios as low as 10-6. Some galaxies with small or no bulges also appear to host SMBHs. This calls into question whether the fundamental property related to a nuclear SMBH is the bulge or the dark matter halo.

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