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Titolo:
CALIBRATION OF STELLAR MODELS
Autore:
CHIEFFI A; STRANIERO O; SALARIS M;
Indirizzi:
CNR,IST ASTROFIS SPAZIALE,CP 67 I-00044 FRASCATI ITALY OSSERVATORIO ASTRON COLLURANIA I-64100 TERAMO ITALY
Titolo Testata:
The Astrophysical journal
fascicolo: 1, volume: 445, anno: 1995,
parte:, 2
pagine: 39 - 42
SICI:
0004-637X(1995)445:1<39:COSM>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPACITIES;
Keywords:
CONVECTION; STARS, EVOLUTION; STARS, LOW-MASS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
A. Chieffi et al., "CALIBRATION OF STELLAR MODELS", The Astrophysical journal, 445(1), 1995, pp. 39-42

Abstract

We discuss the need for a new calibration of the mixing-length parameter owing to the inclusion of updated opacity in the computation of low-mass stellar models. When the contribution to the opacity of molecules is properly taken into account, a significantly larger value of themixing length is required in order to reproduce the observed radii ofthe stars. In addition, at variance with previous claims, we find that different stellar models require different values of l/H-p. In particular we report some evidences of a correlation between mixing length and metallicity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 22:17:58