Massive perturbers in the galactic center

Details Massive perturbers in the galactic center Massive perturbers in the galactic center

2006-12-21

arxiv.org/abs/astro-ph/0612640v1

J.Phys.Conf.Ser.54:293-300,2006

Astronomy and Astrophysics

Astrophysics

To appear in the Proceeding of the Galactic Cenetr Workshop 2006, see astro-ph/0606443 for the full and extended paper

Scientific paper

10.1088/1742-6596/54/1/046

We investigate the role of massive perturbers, such as giant molecular clouds or stellar clusters, in supplying low-angular momentum stars that pass very close to the central massive black hole (MBH) or fall into it. We show that massive pe rturbers can play an important role in supplying both binaries and single stars to the vicinity of the MBH. We discuss possible implications for the ejection of high velocity stars; for the capture of stars on tight orbits around the MBH; for the emission of gravitational waves from low-eccentricity inspiraling stars; and for the origin of the young main sequence B stars observed very near the Gal actic MBH. Massive perturbers may also enhance the the growth rate of MBHs, and may accelerate the dynamical orbital decay of coalescing binary MBHs.

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