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A Search for Main-Sequence Binaries in Globular Clusters
Published online by Cambridge University Press: 14 August 2015
Extract
It is becoming increasingly clear that no (or only one or two) binaries occur among the evolved stars in globular clusters. Therefore, if binaries exist at all in these systems, they must be found on or near the main sequence. I have chosen 6 clusters to search for faint eclipsing binaries by the following criteria:
(1) the apparent visual distance modulus (Harris 1976) (m-M)V ≤ 14.5 mag;
(2) the Peterson and King (1975) concentration class c ≤ 1.5, so that the search can be conducted near or at the cluster center where binaries would most likely be found; and
(3) the galactic latitude is sufficiently large to avoid problems of extreme contamination by field stars.
- Type
- August 29 Open And Globular Clusters
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- Copyright © Reidel 1980
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