Eclipsing Binaries in Galactic Clusters and O-B Associations.
Abstract
Twenty-six eclipsing binaries are found to lie within the limits of galactic clusters; in addition, there ai e 577 such stars in optical coincidence with known 0-B associations. Of the latter, there are 105 stars brighter than M,, = $ 1, with log P < $ 1.4 lying in optical coincidence with the associations I Aur, I Car, I Cru, XI Cyg, I Per, and II Sct. The period-frequency function of this group does not differ significantly from that found for the group of all eclipsing binaries with known spectral types brighter than M = $1 and with log P < $1.4.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- March 1959
- DOI:
- 10.1086/146619
- Bibcode:
- 1959ApJ...129..287K