Observing LMXBs in High Globular Cluster Specific Frequency Elliptical Galaxies

Details Observing LMXBs in High Globular Cluster Specific Frequency Elliptical Galaxies Observing LMXBs in High Globular Cluster Specific Frequency Elliptical Galaxies

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003cxo..prop.1494i&link_type=abstract

Chandra Proposal ID #05600843

Physics

Chandra Proposal Id #05600843

Scientific paper

Chandra studies have found that a large fraction of LMXBs within elliptical galaxies reside within globular clusters, prompting claims that all LMXBs are formed within globular clusters. If so, then the total X-ray luminosity emanating from LMXBs should scale directly with the globular cluster specific frequency, S_N. Conversely, if there is a significant field-born population of LMXBs this relation will be flatter. We have begun a program to test this claim, but we need to observe galaxies with high values of S_N to confirm our findings. We propose ACIS-S observations of NGC4278 (S_N=3.6) and NGC1427 (S_N=3.9), the two nearby galaxies with the highest well-constrained values of S_N. These observations will put stringent constraints on the field-born contribution of the LMXB luminosity.

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