Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...20112902h&link_type=abstract
American Astronomical Society, 201st AAS Meeting, #129.02; Bulletin of the American Astronomical Society, Vol. 34, p.1313
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We present Chandra ACIS-I observations of the accreting binary populations in the rich globular clusters Terzan 5 and M80. We detect nine low-luminosity X-ray sources in Terzan 5 besides the known bright low-mass X-ray binary (LMXB), which entered a rare high state during the observation. Of these, four are likely quiescent LMXBs containing neutron stars, and five are probable cataclysmic variables (CVs), on the basis of X-ray colors, luminosities, and simple spectral fitting. We detect >16 faint X-ray sources in M80, of which two are probable quiescent LMXBs and most of the rest probable CVs. The identified probable quiescent LMXB population in globular clusters is now 20, large enough to study their luminosity function and distribution within the Galactic globular cluster system, and for simple comparative spectral analysis. This work was supported in part by Chandra grant GO0-1034A.
Cohn Haldan N.
Edmonds Peter D.
Grindlay Jonathon E.
Heinke Craig O.
Lloyd Don Anthony
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