A search for novae in M 31 globular clusters

Details A search for novae in M 31 globular clusters A search for novae in M 31 globular clusters

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990pasp..102.1113c&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 102, Oct. 1990, p. 1113-1119.

Mathematics

Probability

25

Andromeda Galaxy, Binary Stars, Globular Clusters, Neutron Stars, Novae, Red Dwarf Stars, Cataclysmic Variables, H Alpha Line, Light Curve, Stellar Evolution, X Ray Sources

Scientific paper

By combining a local sky-fitting algorithm with a Fourier point-spread-function matching technique, nova outbursts have been searched for inside 54 of the globular clusters contained on the Ciardullo et al. (1987 and 1990) H-alpha survey frames of M 31. Over a mean effective survey time of about 2.0 years, no cluster exhibited a magnitude increase indicative of a nova explosion. If the cataclysmic variables (CVs) contained within globular clusters are similar to those found in the field, then these data imply that the overdensity of CVs within globulars is at least several times less than that of the high-luminosity X-ray sources. If tidal capture is responsible for the high density of hard binaries within globulars, then the probability of capturing condensed objects inside globular clusters may depend strongly on the mass of the remnant.

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