Blue stragglers in M67

Details Blue stragglers in M67 Blue stragglers in M67

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247..503e&link_type=abstract

Astrophysical Journal, Part 1, vol. 247, July 15, 1981, p. 503-506.

Astronomy and Astrophysics

Astrophysics

26

Blue Stars, Main Sequence Stars, Star Clusters, Stellar Luminosity, H Beta Line, Pleiades Cluster, Red Shift, Stellar Evolution, Stellar Mass, Stellar Spectrophotometry

Scientific paper

Intermediate band and H beta observations of blue stragglers in M67 are used to derive the reddening and modulus (9.3 + or -0.2 sigma mag) of the cluster. A modulus as large as 9.9 mag is considered unlikely, and luminosity functions of Pleiades, Hyades and M67 are compared. Results indicate that if mass transfer operated, it did not seriously affect the integrated properties observed by the photometric system. There appears to be as many blue stragglers with mass twice the solar value as there were original main-sequence stars of this mass, which raises the possibility of red strategies.

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