Massive stars, globular clusters and elliptical galaxies
| dc.creator | Meynet, Georges | |
| dc.creator | Decressin, Thibaut | |
| dc.creator | Charbonnel, Corinne | |
| dc.date | 2008-01-10 | |
| dc.date.accessioned | 2026-07-07T08:53:39Z | |
| dc.date.available | 2026-07-07T08:53:39Z | |
| dc.description | Globular clusters as $ω$ Cen and NGC 2808 appear to have a population of very He-rich stars. From a theoretical point of view, one expects the presence of He-rich stars in all globular clusters showing an oxygen-sodium (O-Na) anticorrelation. In this paper, we briefly recall how fast rotating massive stars could be the main source of the material from which He-rich stars have formed. We speculate that the UV-upturn phenomenon observed in all elliptical galaxies might be due to He-rich stars. If this hypothesis is correct then fast rotating massive stars may have played in the early evolutionary phases of these systems a similar role as the one they played in the nascent globular clusters. | |
| dc.description | 8 pages, 4 figures, "Memorie della Societa' Astronomica Italiana", Vol. 79 No. 2, eds. S. Cassisi & M. Salaris, in press | |
| dc.identifier | https://arxiv.org/abs/0801.1574 | |
| dc.identifier | http://arxiv.org/abs/0801.1574 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/145696 | |
| dc.subject | Astrophysics | |
| dc.title | Massive stars, globular clusters and elliptical galaxies | |
| dc.type | text |