Blue stragglers as long-lived stars

Details Blue stragglers as long-lived stars Blue stragglers as long-lived stars

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..569w&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 1, 1979, p. 569-578.

Other

96

Main Sequence Stars, Star Clusters, Stellar Evolution, Stellar Magnitude, Open Clusters, Stellar Mass Accretion

Scientific paper

With the assumption that blue stragglers in open clusters evolve as standard main-sequence stars, the mass function and other statistical properties are derived. The mass function is very similar to the present mass function of field stars and is roughly consistent with hypotheses of ongoing star formation, stellar coalescence, and perhaps extended main-sequence lifetimes to explain the nature of blue stragglers. The steep mass function argues against the hypothesis of binary mass transfer. Other features of blue stragglers are inconsistent with noncoeval star formation and stellar coalescence. The notion that some stars undergo a longer-lived quasi-homogeneous evolution is considered and shown to be consistent with many properties of blue stragglers.

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