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Wide Field CAMera survey of M31 globular clusters: low-mass X-ray binaries
- Source :
- Monthly Notices of the Royal Astronomical Society: Letters. 392:L55-L59
- Publication Year :
- 2009
- Publisher :
- Oxford University Press (OUP), 2009.
-
Abstract
- We investigate the relationship between Low Mass X-ray Binaries (LMXBs) and globular clusters (GCs) using UKIRT observations of M31 and existing Chandra, XMM-Newton, and ROSAT catalogues. By fitting King models to these data we have estimated the structural parameters and stellar collision rates of 239 of its GCs. We show a highly significant trend between the presence of a LMXB and the stellar collision rate of a cluster. The stellar collision rate is found to be a stronger predictor of which clusters will host LMXBs than the host cluster mass. We argue that our results show that the stellar collision rate of the clusters is the fundamental parameter related to the production LMXBs. This is consistent with the formation of LMXBs through dynamical interactions with little direct dependence on the neutron star retention fraction or cluster mass.
- Subjects :
- Physics
Astrophysics::High Energy Astrophysical Phenomena
Astronomy and Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
Collision
Neutron star
Space and Planetary Science
Globular cluster
ROSAT
Cluster (physics)
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Earth and Planetary Astrophysics
Low Mass
Astrophysics::Galaxy Astrophysics
Collision rate
Subjects
Details
- ISSN :
- 17453933 and 17453925
- Volume :
- 392
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society: Letters
- Accession number :
- edsair.doi...........ec0f90a305e3c0302c135ee1f7751473