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Models for Vega

Published online by Cambridge University Press:  12 April 2016

Fiorella Castelli  and
Robert L. Kurucz
Fiorella Castelli
Affiliation:
CNR-Gruppo Nazionale Astronomia-Unità di Ricerca di Trieste Via G.B. Tiepolo 11 - 34131 Trieste -Italy
Robert L. Kurucz
Affiliation:
Harvard-Smithsonian Center for Astrophysics 60 Garden Street-Cambridge-Massachusetts 02138

Abstract

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By using the ATLAS9 code which requires the new opacity data from Kurucz (1992), we derived a new atmospheric model for Vega with parameters Teff=9500 K, log g=3.95, [M/H]=−0.5, ξ=2 kms s−1. The model was fixed by comparing observed and computed energy distributions and Balmer profiles.

Type
V. Theory of CP Star Photospheres
Information
International Astronomical Union Colloquium , Volume 138: Peculiar versus Normal Phenomena in A-Type and Related Stars , 1993 , pp. 496 - 501
Copyright
Copyright © Astronomical Society of the Pacific 1993

References

Adelman, S.J. and Gulliver, A.F. 1990, Ap. J., 348, 712.CrossRefGoogle Scholar
Bohlin, R.C., Harris, A.W., Holm, A.V., Gry, C. 1990, Ap. J. Suppl., 73, 413.CrossRefGoogle Scholar
Castelli, F. 1992, The abundances of Vega from the ultraviolet spectrum, to b published in the Proc. of IAU Coll. 137, ed. Weiss, W.W. and Baglin, A..CrossRefGoogle Scholar
Dreiling, L.A. and Bell, R.A. 1980, Ap. J., 241, 736.CrossRefGoogle Scholar
Gigas, D. 1986, Astr. Ap., 165, 170.Google Scholar
Gray, D.F. 1980, Pub. A.S.P, 92, 154.CrossRefGoogle Scholar
Gustafsson, B., Bell, R.A., Eriksson, K., and Nordlund, A. 1975, Astr. Ap., 42, 407.Google Scholar
Hayes, D.S. 1985, Proc. of IAU Symp. No 111, p.225. Google Scholar
Hayes, D.S. and Latham, D.W. 1975, Ap. J., 197, 593.CrossRefGoogle Scholar
Jamar, C., Macau-Hercot, D., Monfils, A., Thompson, G.I., Houziaux, L., and Wilson, R. 1976, UV Bright-Star Spectrophotometric Catalogue.Google Scholar
Kurucz, R.L. 1979, Ap. J. Suppl., 40, 1.CrossRefGoogle Scholar
Kurucz, R.L. 1992, Model Atmospheres for Population Synthesis, to he publisei in the Proc. of IAU Symp. 149, ed. Barbuy, B. and Renzini, A..CrossRefGoogle Scholar
Lane, M.C. and Lester, J.B. 1984, Ap. J., 281, 723.CrossRefGoogle Scholar
Peterson, D.M. 1969, SAO Spec. Rep., 293.Google Scholar
Venn, K.A. and Lambert, D.L. 1990, Ap. J., 263, 234.CrossRefGoogle Scholar