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The stars of the Galactic center

Davies, Melvyn B LU and King, A (2005) In Astrophysical Journal 624(Part 2). p.25-27
Abstract
We consider the origin of the so-called S stars orbiting the supermassive black hole at the very center of the Galaxy. These are usually assumed to be massive main-sequence stars. We argue instead that they are the remnants of low-to-intermediate mass red giants that have been scattered into near-radial orbits and tidally stripped as they approach the central black hole. Such stars retain only low-mass envelopes and thus have high effective temperatures. Our picture simultaneously explains why S stars have tightly bound orbits and the observed depletion of red giants in the very center of the Galaxy.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Galaxy : center, Galaxy : kinematics and dynamics, Galaxy : nucleus
in
Astrophysical Journal
volume
624
issue
Part 2
pages
25 - 27
publisher
University of Chicago Press
external identifiers
  • wos:000228554300007
  • scopus:20344362151
ISSN
0004-637X
DOI
10.1086/430308
language
English
LU publication?
yes
id
94115cf0-4ff3-4901-95b1-1a6bf2d84fb5 (old id 245834)
date added to LUP
2007-09-21 11:21:33
date last changed
2017-10-22 04:32:55
@article{94115cf0-4ff3-4901-95b1-1a6bf2d84fb5,
  abstract     = {We consider the origin of the so-called S stars orbiting the supermassive black hole at the very center of the Galaxy. These are usually assumed to be massive main-sequence stars. We argue instead that they are the remnants of low-to-intermediate mass red giants that have been scattered into near-radial orbits and tidally stripped as they approach the central black hole. Such stars retain only low-mass envelopes and thus have high effective temperatures. Our picture simultaneously explains why S stars have tightly bound orbits and the observed depletion of red giants in the very center of the Galaxy.},
  author       = {Davies, Melvyn B and King, A},
  issn         = {0004-637X},
  keyword      = {Galaxy : center,Galaxy : kinematics and dynamics,Galaxy : nucleus},
  language     = {eng},
  number       = {Part 2},
  pages        = {25--27},
  publisher    = {University of Chicago Press},
  series       = {Astrophysical Journal},
  title        = {The stars of the Galactic center},
  url          = {http://dx.doi.org/10.1086/430308},
  volume       = {624},
  year         = {2005},
}