SIMBAD references

2010A&A...521A..54G - Astronomy and Astrophysics, volume 521, A54-54 (2010/10-1)

Diluting the material forming the second generation stars in globular clusters: the contribution by unevolved stars.

GRATTON R.G. and CARRETTA E.

Abstract (from CDS):

In this short communication we consider the possibility that stars less evolved than the polluters are the source of the dilution needed to explain the observed composition of second-generation globular cluster (GC) stars and the Na-O and Mg-Al anticorrelations. If these stars can lose 0.5-1% of their mass during the relevant epochs, there is enough diluting material to produce the observed anticorrelations. In this case, the original mass of proto-GCs was several tens times higher than the current mass of GCs. While not strictly impossible, this is a stringent hypothesis that needs more support. Should this scenario be found true, then the link between the primordial (first-generation) population in GC and the field population would be very strong.

Abstract Copyright:

Journal keyword(s): stars: abundances - stars: atmospheres - stars: population II - globular clusters: general

Simbad objects: 8

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2010A&A...521A..54G and select 'bookmark this link' or equivalent in the popup menu