On the Evolution of the Horizontal Branch Stars of Metal-Poor Globular Clusters

Details On the Evolution of the Horizontal Branch Stars of Metal-Poor Globular Clusters On the Evolution of the Horizontal Branch Stars of Metal-Poor Globular Clusters

Nov 1968

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1968ap%26ss...2..310c&link_type=abstract

Astrophysics and Space Science, Volume 2, Issue 3, pp.310-314

Astronomy and Astrophysics

Astrophysics

39

Scientific paper

The actual knowledge on Horizontal Branch stars of the metal-poor Globular Clusters of our Galaxy suggests that these stars evolve along the Horizontal Branch from the very blue stars towards lower effective temperature. From this behaviour it follows that a substantial mass loss occurs at the He-flash. On the basis of a gravitational thermalization of Horizontal Branch stars any recent observational data concerning NGC 7006 are re-examined. It is pointed out that today it is not necessary to leave the hypothesis of a strong correlation between the metal and helium content for our Galaxy.

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