Unequal Massive Black Hole Binaries in Galactic Stellar Cusps: Orbital Decay and Ejection of Hyper-Velocity Stars

Details Unequal Massive Black Hole Binaries in Galactic Stellar Cusps: Orbital Decay and Ejection of Hyper-Velocity Stars Unequal Massive Black Hole Binaries in Galactic Stellar Cusps: Orbital Decay and Ejection of Hyper-Velocity Stars

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confq..59s&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 59-59"

Astronomy and Astrophysics

Astrophysics

Scientific paper

Intermediate MBHs (IMBHs) are becoming of increasing interest in astrophysics. The inspiral of IMBHs onto MBHs in galactic nuclei is a fascinating possibility, carrying a number of interesting observational and theoretical implications. I present a hybrid model for the inspiraling of an IMBH-MBH binary embedded in a power-law stellar cusp. The results concerning the binary shrinking and the cusp evolution are in good agreement with recent N-body simulations. The formalism is finally applied to the inspiral of an IMBH onto SgrA*, in the attempt of explaining the recently observed hyper-velocity stars in the Milky Way halo.

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