Models of M 67

Details Models of M 67 Models of M 67

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14..442h&link_type=abstract

Highlights of Astronomy, Volume 14, p. 442-443

Astronomy and Astrophysics

Astronomy

Stellar Dynamics, Methods: N-Body Simulations, Binaries: Close, Blue Stragglers

Scientific paper

The old open cluster M 67 is an ideal test case for current star cluster evolution models because of its dynamically evolved structure and rich stellar populations that show clear signs of interaction between stellar, binary and cluster evolution. Here we discuss a direct N-body model of M 67. This model of 12,000 single stars and 12,000 binaries is evolved from zero-age and takes full account of cluster dynamics as well as stellar and binary evolution. At an age of 4 Gyr the model cluster matches the mass and structure of M 67 as constrained by observations. We discuss the role of the primordial binary population and the cluster environment in shaping the nature of the stellar populations of M 67, with a focus on X-ray binaries and blue stragglers.

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