An indicator of galactic violence

Details An indicator of galactic violence An indicator of galactic violence

Oct 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986ap%26ss.126..255b&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 126, no. 2, Oct. 1986, p. 255-267.

Astronomy and Astrophysics

Astronomy

2

Astronomical Models, Galactic Evolution, Mass Distribution, Radii, Rims, Angular Momentum, Black Holes (Astronomy), Galactic Mass, Quasars

Scientific paper

An indicator of galactic violence is proposed, nominally equal to the total galactic mass divided by the rim radius. Four models of galaxy formation are outlined; and for each, the dependence of the rim radius on the galactic mass and the source of angular momentum is examined. If the violence indicator is small, then a normal galaxy results. If the violence indicator is large, then a galaxy with a very massive central black hole is produced (possibly a quasar). A rim radius of zero would indicate the ultimate violence and would lead directly to a non-rotating black hole of galactic mass.

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