Shaping the relation between the mass of supermassive black holes and the velocity dispersion of galactic bulges

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Abstract

I use the fact that the radiation emitted by the accretion disk of supermassive black hole can heat up the surrounding gas in the protogalaxy to achieve hydrostatic equilibrium during the galaxy formation. The correlation between the black hole mass M BH and velocity dispersion σ thus naturally arises. The result generally agrees with empirical fittings from observational data, even with M BH ≤106 M ⊙. This model provides a clear picture on how the properties of the galactic supermassive black holes are connected with the kinetic properties of the galactic bulges. Copyright © 2013 Springer Science+Business Media Dordrecht.
Original languageEnglish
Pages (from-to)195-198
JournalAstrophysics and Space Science
Volume345
Issue number1
Early online dateJan 2013
DOIs
Publication statusPublished - May 2013

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galactic bulge
hydrostatics
accretion
kinetics
gas
protogalaxies
galactic evolution
accretion disks
heat
radiation
gases
science

Citation

Chan, M. H. (2013). Shaping the relation between the mass of supermassive black holes and the velocity dispersion of galactic bulges. Astrophysics and Space Science, 345(1), 195-198. doi: 10.1007/s10509-013-1373-x

Keywords

  • Galaxies
  • Galactic center
  • Supermassive blackholes
  • Velocity dispersion