Constraining the third dredge-up via carbon stars in the Magellanic Clouds
| dc.creator | Girardi, L. | |
| dc.creator | Marigo, P. | |
| dc.date | 2003-02-03 | |
| dc.date.accessioned | 2026-07-07T02:07:26Z | |
| dc.date.available | 2026-07-07T02:07:26Z | |
| dc.description | We use the available data for Magellanic Cloud carbon stars to constrain the efficiency of the third dredge-up process in TP-AGB models. We show that star counts in LMC clusters provide quite stringent limits to the lifetime of the C-star phase, with a duration between 2 and 3 Myr for stars in the mass range from 1.5 to 2.8 Msun. Together with the luminosity functions of field C stars, this information allows us to re-calibrate the third dredge-up parameters log T_b_dred and lambda in TP-AGB models that include variable molecular opacities (Marigo 2002). Preliminary results are presented here. | |
| dc.description | in proceedings of the St. Luc conference ``CNO in the Universe'', eds. C. Charbonnel, D. Schaerer, & G. Meynet, ASP Conference Series, in press | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0302020 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0302020 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/5697 | |
| dc.subject | Astrophysics | |
| dc.title | Constraining the third dredge-up via carbon stars in the Magellanic Clouds | |
| dc.type | text |