Possible observational consequences of primordial binaries in globular clusters

Details Possible observational consequences of primordial binaries in globular clusters Possible observational consequences of primordial binaries in globular clusters

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...390..440t&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 390, no. 2, May 10, 1992, p. 440-446.

Astronomy and Astrophysics

Astrophysics

7

Binary Stars, Cataclysmic Variables, Globular Clusters, Novae, Protostars, Stellar Evolution, Stellar Motions, Astronomical Spectroscopy, Celestial Mechanics, Color-Magnitude Diagram

Scientific paper

The paper investigates the observational consequences of the evolution of a primordial binary population in a globular cluster. For those binary systems which begin mass transfer at orbital periods of less than about 1 d, the system is expected to evolve to a contact binary stage and to eventually merge to form a single star. At longer orbital periods, the binary system will enter into a common envelope stage. For periods less than about 10 d, the system is likely to merge, and the outcome of the evolution is a single red giant star. For systems characterized by orbital periods greater than about 15 d, a detached red dwarf-white dwarf binary system is expected to change. As a consequence of the mergers, a range in masses for the red giant stars is possible, leading to a color spread on the RGB of the color magnitude diagram. The luminosity function of stars at high luminosities is expected to steepen as a result of tidal interaction in the binary. It is suggested that the formation of cataclysmic variables via primordial binaries is expected only in loosely bound clusters of low-velocity dispersion.

Affiliated with

Also associated with

No associations

Rating

Possible observational consequences of primordial binaries in globular clusters does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Possible observational consequences of primordial binaries in globular clusters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible observational consequences of primordial binaries in globular clusters will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1514497