Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events

Details Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events

2012-03-29

arxiv.org/abs/1203.6685v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

ApJ Letters, accepted; 13 pages, including 3 figures

Scientific paper

We examine whether disrupted binary stars can fuel black hole growth. In this mechanism, tidal disruption produces a single hypervelocity star (HVS) ejected at high velocity and a former companion star bound to the black hole. After a cluster of bound stars forms, orbital diffusion allows the black hole to accrete stars by tidal disruption at a rate comparable to the capture rate. In the Milky Way, HVSs and the S star cluster imply similar rates of 10^{-5}--10^{-3} yr^{-1} for binary disruption. These rates are consistent with estimates for the tidal disruption rate in nearby galaxies and imply significant black hole growth from disrupted binaries on 10 Gyr time scales.

Affiliated with

Also associated with

No associations

Rating

Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Binary Disruption by Massive Black Holes: Hypervelocity Stars, S Stars, and Tidal Disruption Events will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-63727