SIMBAD references

2001ApJ...546L..39G - Astrophys. J., 546, L39-L42 (2001/January-1)

The Galactic Center He I stars: remains of a dissolved young cluster?

GERHARD O.

Abstract (from CDS):

A massive young star cluster, initially embedded in its parent molecular cloud, will spiral into the Galactic center from ≲30m1/26 pc during the lifetime of its most massive stars, if the combined total mass is ∼106m6 M. On its way inward, the system loses most of its mass to the strong tidal field, until the dense cluster core of high-mass stars is finally disrupted near the central black hole. A simple model is presented to argue that this scenario may, under plausible conditions, explain the observed location and rotation of the Galactic center He I stars. Accretion of star clusters into the Galactic center could be recurrent and could play an important role in regulating the activity of Sagittarius A*.

Abstract Copyright:

Journal keyword(s): Black Hole Physics - Galaxies: Nuclei - Galaxies: Star Clusters - Galaxy: Center - Galaxy: Evolution - ISM: Clouds

CDS comments: He I cluster = [KGD91] HeI Cluster.

Simbad objects: 5

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