Do active galaxies have a massive halo component?

Details Do active galaxies have a massive halo component? Do active galaxies have a massive halo component?

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006newa...12...11p&link_type=abstract

New Astronomy, Volume 12, Issue 1, p. 11-19.

Astronomy and Astrophysics

Astronomy

5

98.54.-H, 98.62.Gq

Scientific paper

We present a dynamical model for an active galaxy. Our model is a mass model with a disk, nucleus, and halo components. Numerical calculations and theoretical evidence show, that for a fixed value of mass of the galaxy the stellar velocities in the central region decrease as the mass of halo increases. Furthermore, the motion tends to be regular while, when the halo component is absent, the majority of orbits are chaotic. The dynamical evolution of the system is also studied when mass is transported from the halo to the disk and the nucleus. Our results are compared to the recently obtained observation data for active galaxies.

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