Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...290..171h&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 290, March 1, 1985, p. 171-184.
Astronomy and Astrophysics
Astronomy
61
Astronomical Spectroscopy, Binary Stars, Galactic Clusters, Globular Clusters, Stellar Luminosity, X Ray Sources, Cataclysmic Variables, Emission Spectra, Heao 1, Heao 2, Sky Surveys (Astronomy), Spaceborne Astronomy, Stellar Mass Accretion, White Dwarf Stars
Scientific paper
An X-ray survey of 134 galactic globular clusters was performed with the Large-Area Sky Survey Experiment aboard HEAO 1. No new globular cluster X-ray sources were discovered, confirming the gap in the luminosity function discussed, obtaining upper limits on X-ray emission from 67 globular clusters. Statistical analyses reveal that the presence of both high-luminosity and low-luminosity globular cluster X-ray sources is correlated with the time scale for binary formation via the tidal capture mechanism within globular clusters. Among other predictions, a turnover in the luminosity function below 10 to the 32nd erg/s is expected. Finally, the implications of the model presented on the evolution of globular cluster X-ray sources and on low-mass X-ray binaries and cataclysmic variables in the galactic plane.
Hertz Paul
Wood Kent S.
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