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Accurate Masses and Radii as Test Data for Stellar Models: Status and Progress on the Copenhagen Project

Published online by Cambridge University Press:  12 April 2016

J. Andersen ,
J.V. Clausen ,
B.E. Helt ,
K.T. Johansen ,
B. Nordström ,
M. García ,
A. Giménez ,
R.P. Stefanik  and
L.P.R. Vaz
J. Andersen
Affiliation:
Copenhagen University Observatory, Denmark
J.V. Clausen
Affiliation:
Copenhagen University Observatory, Denmark
B.E. Helt
Affiliation:
Copenhagen University Observatory, Denmark
K.T. Johansen
Affiliation:
Copenhagen University Observatory, Denmark
B. Nordström
Affiliation:
Copenhagen University Observatory, Denmark
M. García
Affiliation:
Departamento de Física, E.I. Industriales, Madrid, Spain
A. Giménez
Affiliation:
Laboratorio de Física Espacial, INTA, Madrid, Spain
R.P. Stefanik
Affiliation:
Harvard-Smithsonian Center for Astrophysics, U.S.A.
L.P.R. Vaz
Affiliation:
Departamento de Fisica, Univ. Fed. de Minas Gerais, Brazil

Extract

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The most important ingredient of a stellar model is its initial mass. Hence, real stars with known masses are important test objects for stellar models. Initial chemical composition is the other important starting parameter and should therefore also be known (Clausen, 1992). Finally, the most direct indicator of the evolution of a star is its radius. Together, these parameters determine the effective temperature and luminosity of the model, to be tested against a real star.

Type
IV. Input physics and basic stellar data
Information
International Astronomical Union Colloquium , Volume 137: Inside the Stars , 1993 , pp. 361 - 363
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Andersen, J. 1991, Astr. Ap. Rev., 3, 91.Google Scholar
Clausen, J.V. 1992, In inside the Stars, eds. Weiss, W. and Baglin, A..Google Scholar
Claret, A., Giménez, A. 1991, Astr. Ap. Suppl., 87, 507.Google Scholar