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Particle Transport in Non-Magnetic Stars

Published online by Cambridge University Press:  12 April 2016

G. Michaud
G. Michaud*
Affiliation:
Département de Physique, Université de MontréalC.P. 6128, Suce. A, Montréal CANADA H3C 3J7

Abstract

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The observations of AmFm, λ Booti, HgMn and He rich stars that are explained without any arbitrary parameter by diffusion are briefly reviewed, followed by those observations that are not explained by this simple model. Mass loss is then shown to explain a large fraction of the observations that are not explained in the parameter free model. It seems to play a role in the λ Booti, AmFm, He rich and the hot horizontal branch stars. It is only of about 10−15 to 10−13 Mo/yr. Abundance anomalies then help to determine stellar hydrodynamics. It is finally suggested that recent observations of Li underabundances in F stars of the Hyades represent an extension of the AmFm star phenomenon.

Type
Section IV - Non-Magnetic CP and Related Stars
Information
International Astronomical Union Colloquium , Volume 90: Upper Main Sequence Stars with Anomalous Abundances , 1986 , pp. 459 - 472
Copyright
Copyright © Reidel 1986

References

Alecian, G., and Michaud, G. 1981, Ap. J., 245, 226.Google Scholar
Alecian, G., and Vauclair, S. 1981, Astr. Ap., 101, 16.Google Scholar
Alecian, G., and Vauclair, S. 1983, Fundamentals Cosmic Phys., 8, 369.Google Scholar
Baglin, A. 1972, Astr. Ap., 19, 45.Google Scholar
Baschek, B., Kudritzki, R.P., Scholz, M., and Simon, K. Р. 1982, Astr. Ap., 108, 387.Google Scholar
Borsenberger, J., Michaud, G., and Prederie, F. 1979, Astr. Ap., 76, 287.Google Scholar
Borsenberger, J., Michaud, G., and Prederie, F. 1981a, Ap. J., 243, 533.Google Scholar
Borsenberger, J., Michaud, G., and Prederie, F. 1984, Astr. Ap., 139, 147.Google Scholar
Borsenberger, J., Radiman, I., Michaud, G., and Praderie, F. 1981b, in Les étoiles de composition chimique anormale du début de la séquence principale. (Liège: Université de Liège), p. 389.Google Scholar
Cowley, C. R., Sears, R.L., Aikman, G.C.L., and Sadakane, K. 1982, Ap. J., 254, 191.Google Scholar
Heber, U., Hamann, W.-R., Hunger, K., Kudritsky, R.P., Simon, K.P., and Méndez, R.H. 1984, Astr. Ap., 136, 331.Google Scholar
Kurtz, D.W. 1976, Ap. J. Suppl., 32, 651.Google Scholar
Lamontagne, R., Wesemael, F., Fontaine, G., and Sion, E.M. 1985, preprint.Google Scholar
Latour, J., Toomre, J., and Zahn, J.-P. 1981, Ap. J., 248. 1081.Google Scholar
Leckrone, D.S., 1981, Ap. J., 250, 687.CrossRefGoogle Scholar
Michaud, G. 1970, Ap. J., 160, 641.Google Scholar
Michaud, G. 1976, in Physics of Ap Stars. IAU Colloquium No. 32. ed. Weiss., W.W., Jenkner, H., and Wood, H.J. (Universitatsternwarte Wien, Vienna), p. 351.Google Scholar
Michaud, G. 1980, A. J., 85, 589.Google Scholar
Michaud, G. 1981, in Les étoiles de composition chimique anormale du début de la séquence principale (Liège: Université de Liège), p. 355.Google Scholar
Michaud, G. 1982, Ap. J., 258, 349.Google Scholar
Michaud, G., Bergeron, P., Wesemael, F., and Fontaine, G. 1985, Ap. J., in press.Google Scholar
Michaud, G., Charland, Y., Vauclair, S., and Vauclair, G. 1976, Ap. J., 210, 447.CrossRefGoogle Scholar
Michaud, G., Fontaine, G., and Beaudet, G. 1984, Ap. J., 282, 206.Google Scholar
Michaud, G., Megessier, C., and Charland, Y. 1981, Astr. Ap., 103, 244.Google Scholar
Michaud, G., Montmerle, T., Cox, A.N., Magee, N.H., Hodson, S.W., and Martel, A. 1979, Ap. J., 234, 206.Google Scholar
Michaud, G., Tarasick, D., Charland, Y., and Pelletier, C. 1983, Ap. J., 269, 239.CrossRefGoogle Scholar
Osmer, P.S., and Peterson, D. 1974, Ap. J., 187, 117.Google Scholar
Preston, G. 1974, Ann. Rev. Astr. Ap., 12, 257.Google Scholar
Sadakane, K., and Jugaku, J. 1981, Pub. Astr. Soc. Pac., 93, 60.Google Scholar
Tassoul, J.-L., and Tassoul, M. 1982, Ap. J. Suppl., 49, 317.Google Scholar
Vauclair, G., Vauclair, S., and Michaud, G. 1978, Ap. J., 223, 920.Google Scholar
Vauclair, G., Vauclair, S., and Pamjatnikh, A. 1974, Astr. Ap., 31, 63.Google Scholar
Vauclair, S. 1975, Astr. Ap., 45, 233.Google Scholar
Vauclair, S., and Reeves, H. 1972, Astr. Ap., 18, 215.Google Scholar
Vauclair, S., and Vauclair, G. 1982, Ann. Rev. Astr. Ap., 20, 37.Google Scholar
Watson, W.D., 1971, Astr. Ap., 13, 263.Google Scholar