Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-11-04
Astronomy and Astrophysics
Astrophysics
5 pages, 2 embedded Postscript figures, uses emulateapj.sty, Astrophysical Journal Letters, in press
Scientific paper
10.1086/311803
We determine the X-ray spectral properties of a sample of low-mass X-ray binaries (LMXBs) which reside in globular clusters of M31, as well as five LMXBs in Galactic globular clusters and in the Large Magellanic Cloud using the ROSAT PSPC. We find a trend in the X-ray properties of the LMXBs as a function of globular cluster metallicity. The spectra of LMXBs become progressively softer as the metallicity of its environment increases. The one M31 globular cluster LMXB in our sample which has a metallicity greater than solar has spectral properties similar to those of LMXBs in the bulge of M31, but markedly different from those which reside in low metallicity globular clusters, both in M31 and the Galaxy. The spectral properties of this high metallicity LMXB is also similar to those of X-ray faint early-type galaxies. This lends support to the claim that a majority of the X-ray emission from these X-ray faint early-type galaxies results from LMXBs and not hot gas, as is the case in their X-ray bright counterparts.
Bregman Joel N.
Irwin Jimmy A.
No associations
LandOfFree
The Dependence of the Soft X-ray Properties of LMXBs on the Metallicity of Their Environment 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 The Dependence of the Soft X-ray Properties of LMXBs on the Metallicity of Their Environment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Dependence of the Soft X-ray Properties of LMXBs on the Metallicity of Their Environment will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-610484