Theoretical Zero Age Main Sequences revisited
| dc.creator | Castellani, V. | |
| dc.creator | Innocenti, S. Degl' | |
| dc.creator | Marconi, M. | |
| dc.date | 1999-08-26 | |
| dc.date.accessioned | 2026-07-07T02:32:55Z | |
| dc.date.available | 2026-07-07T02:32:55Z | |
| dc.description | Zero Age Main Sequence (ZAMS) models with updated physical inputs are presented for selected assumptions about the chemical composition, covering the ranges 0.6 < M/Mo < 1.2, 0.0001 < Z < 0.04, 0.23 < Y < 0.34.The HR diagram location of the ZAMS as a function of Y and Z is discussed both in the theoretical and in the observational HR diagrams, showing that the V magnitude presents an increased dependence on Z to be taken into account when discussing observational evidences. Analytical relations quantifying both these dependences are derived. Implications for the galactic helium to heavier elements enrichment are finally discussed. | |
| dc.description | 4 pages, 4 postscript figures, accepted for publication on Astronomy & Astrophysics | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9908291 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9908291 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/14640 | |
| dc.subject | Astrophysics | |
| dc.title | Theoretical Zero Age Main Sequences revisited | |
| dc.type | text |