The helium spread among the stars of 47Tuc

Details The helium spread among the stars of 47Tuc The helium spread among the stars of 47Tuc

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010iaus..268..175d&link_type=abstract

Light Elements in the Universe, Proceedings of the International Astronomical Union, IAU Symposium, Volume 268, p. 175-176

Astronomy and Astrophysics

Astronomy

Globular Clusters: Individual (47 Tuc), Stars: Horizontal-Branch, Evolution, Abundances

Scientific paper

We show that the current data of the HB branch of 47 Tuc show a particular feature that cannot be explained if a single population with an unique mechanism of mass loss is considered. We find that a spread in helium abundance among the stars is necessary, of ~0.02. We indicate that the same variation in helium is present among the sub giant branch stars and suggest that is responsible of the spread in luminosity of the bright sub giant branch, while only a small part of the second generation is characterized by C+N+O increase and gives the faint sub giant branch.

Affiliated with

Also associated with

No associations

Rating

The helium spread among the stars of 47Tuc 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 The helium spread among the stars of 47Tuc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The helium spread among the stars of 47Tuc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1583350