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A Photoelectric Investigation of the Eclipsing Binary V 78 in Omega Centauri (NGC 5139)
Published online by Cambridge University Press: 12 April 2016
Extract
The existence of eclipsing binaries, though extremely rare, in stellar systems like globular clusters, should attract the observers, because one could obtain fundamental data on highly evolved stars. The variable star V 78 in the globular cluster NGC 5139, which was found by BAILEY (1901), is one of these rare cases. MARTIN (1938) derived the period P = 1ḍ168118, and showed by means of an extensive photographic photometry that it is an Algol type eclipsing binary. Recently SISTERO et al. (1968, 1969) rediscussed the observations of MARTIN, and with additional measurements derived the following light elements:
- Type
- IV. Duplicity and its Consequences among the Intrinsic Variable Stars
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- Copyright © Cambridge University Press 1971