SIMBAD references

2007A&A...462..237G - Astronomy and Astrophysics, volume 462, 237-243 (2007/1-4)

The TP-AGB phase. Lifetimes from C and M star counts in Magellanic Cloud clusters.

GIRARDI L. and MARIGO P.

Abstract (from CDS):

Using available data for C and M giants with Mbol←3.6 in Magellanic Cloud clusters, we derive limits to the lifetimes for the corresponding evolutionary phases, as a function of stellar mass. The C-star phase is found to have a duration between 2 and 3Myr for stars in the mass range from ∼1.5 to 2.8M. There is also an indication that the peak of C-star lifetime shifts to lower masses (from slightly above to slightly below 2M) as we move from LMC to SMC metallicities. The M-giant lifetimes also peak at ∼2M in the LMC, with a maximum value of about 4Myr, whereas in the SMC their lifetimes appear much shorter, but, actually, they are poorly constrained by the data. These numbers constitute useful constraints to theoretical models of the TP-AGB phase. We show that several models in the literature underestimate the duration of the C-star phase at LMC metallicities.

Abstract Copyright:

Journal keyword(s): stars: AGB and post-AGB - stars: carbon - galaxies: Magellanic Clouds - galaxies: star clusters

Simbad objects: 34

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2007A&A...462..237G and select 'bookmark this link' or equivalent in the popup menu


2020.09.23-13:18:31

© Université de Strasbourg/CNRS

    • Contact