Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.5201i&link_type=abstract
American Astronomical Society Meeting 203, #52.01; Bulletin of the American Astronomical Society, Vol. 35, p.1288
Astronomy and Astrophysics
Astronomy
Scientific paper
Recent Chandra observations of nearby early-type galaxies have revealed that a significant fraction (30%--70%) of low-mass X-ray binaries (LMXBs) within these galaxies reside within globular clusters. Yet whether all LMXBs form within globular clusters is still an open question. Using a sample of early-type galaxies observed with Chandra, we address this issue further. For each galaxy, we have determined the total X-ray luminosity, LX, from the sum of the individual LMXBs within each galaxy and compared this value to the number of globular clusters in the galaxy (or more specifically, LX/LB,gal vs. the globular cluster specific frequency, SN). We find a strong correlation between LX/LB,gal and SN, confirming that a significant number of LMXBs are formed within globular clusters. However, the y-intercept of the LX/LB,gal vs. SN relation is not zero, indicating that there is a population of LMXBs that was not formed within globular clusters. We place constraints on the relative importance of the non-globular cluster LMXB population and discuss the implications of our result.
Bregman Joel N.
Irwin Jimmy A.
No associations
LandOfFree
Are All Low-Mass X-ray Binaries Formed Within Globular Clusters? 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 Are All Low-Mass X-ray Binaries Formed Within Globular Clusters?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Are All Low-Mass X-ray Binaries Formed Within Globular Clusters? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1420282