Galactic nuclei luminosity: A model of steady spherically-symmetric accretion of optically-thick gas on to Kerr black holes

DOI: 
10.1007/BF00637755
Publication date: 
01/11/1986
Main author: 
Perán C.
IAA authors: 
Perán C.;Battaner E.
Authors: 
Perán C., Battaner E.
Journal: 
Astrophysics and Space Science
Publication type: 
Article
Volume: 
127
Pages: 
1-7
Number: 
Abstract: 
Stationary spherically-symmetric accretion on to Kerr black holes is studied. A theoretical model has been developed in which the relativistic equations of continuity, conservation of four-momentum, local energy balance, and synchrotron radiative transfer have been integrated, by means of a combination of analytical and numerical procedures. A special emphasis has been put on evaluating the outcoming fluxes, as they can be compared with observations. Calculations were performed for masses of black holes in galactic nuclei, 106M⊙ as representative of the hypothetical black hole in the nucleus of the Milky Way and 107M⊙ as representative of a moderate Seyfert nucleus. The emergent spectra differ considerably from observations, as they are severely modified by dust in more external regions. The total frequency-integrated luminosity is, however, in very good agreement with observations. © 1986 D. Reidel Publishing Company.
Database: 
SCOPUS
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/1986Ap&SS.127....1P/abstract
ADS Bibcode: 
1986Ap&SS.127....1P
Keywords: