Modeling Lithium-rich Carbon Stars in the Large Magellanic Cloud: An Independent Distance Indicator? | Zendy

P. Ventura | Zendy; F. D’Antona | Zendy; I. Mazzitelli | Zendy

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Modeling Lithium-rich Carbon Stars in the Large Magellanic Cloud: An Independent Distance Indicator?

Author(s) -

P. Ventura,

F. D’Antona,

I. Mazzitelli

Publication year - 1999

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/312315

Subject(s) - physics , astrophysics , stars , large magellanic cloud , nucleosynthesis , lithium (medication) , asymptotic giant branch , stellar evolution , carbon star , astronomy , medicine , endocrinology

We present the first quantitative results explaining the presence in theLarge Magellanic Cloud of some asymptotic giant branch stars that share theproperties of lithium rich carbon stars. A self-consistent description oftime-dependent mixing, overshooting, and nuclear burning was required. Weidentify a narrow range of masses and luminosities for this peculiar stars.Comparison of these models with the luminosities of the few Li-rich C stars inthe Large Magellanic Cloud provides an independent distance indicator for theLMCComment: 7 pages, 2 figure

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