1994A&A...292..404H

Query : 1994A&A...292..404H

1994A&A...292..404H - Astronomy and Astrophysics, volume 292404-408 (1994/12-2)

Black-hole stellar accretion in active galactic nuclei.

HAMEURY J.-M., KING A.R., LASOTA J.-P. and AUVERGNE M.

Abstract (from CDS):

We consider the accretion of main sequence or slightly evolved stars by a massive Kerr black hole in an active galactic nucleus (AGN). We show that in many cases the stars are stably accreted via Roche lobe overflow over 104-105yr. If several stars accrete simultaneously, this is sufficient to power typical AGN. Periodic modulations would be rather weak, as each star contributes only a fraction of the luminosity. Long term variability (years) might result from the dynamical instability of mass transfer from one of the stars.

Abstract Copyright: ∼

Journal keyword(s): accretion, accretion discs - galaxies: active - galaxies: nuclei - X-rays: galaxies - black holes

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 V* V1432 Aql CV* 19 40 11.4199326288 -10 25 25.771706256     14.40 15.437   ~ 181 0
2 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 866 0

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