The stars of the Galactic center
(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:
https://lup.lub.lu.se/record/245834
- author
- Davies, Melvyn B LU and King, A
- organization
- publishing date
- 2005
- 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
- American Astronomical Society
- 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
- 2016-04-01 15:44:24
- date last changed
- 2024-01-10 19:06:36
@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}}, keywords = {{Galaxy : center; Galaxy : kinematics and dynamics; Galaxy : nucleus}}, language = {{eng}}, number = {{Part 2}}, pages = {{25--27}}, publisher = {{American Astronomical Society}}, series = {{Astrophysical Journal}}, title = {{The stars of the Galactic center}}, url = {{http://dx.doi.org/10.1086/430308}}, doi = {{10.1086/430308}}, volume = {{624}}, year = {{2005}}, }