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Properties and Evolution of White Dwarf Stars

Published online by Cambridge University Press:  19 July 2016

Harry L. Shipman
Harry L. Shipman*
Affiliation:
Physics and Astronomy Department, University of Delaware

Abstract

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This paper reviews the properties and evolutionary status of white dwarf stars, focusing most closely on those aspects which are likely to be of significance to understanding the ultimate fate of planetary nebulae and their central stars. White dwarf stars show a broad variety of chemical compositions. Broadly speaking, they are divided into the DA stars (with H-rich photospheres) and the non-DA stars (with He-rich photospheres), though there are a fairly large number of subtypes. The mass distribution of white dwarf stars is quite narrow, with a mean value near 0.6 and with extremes at 0.43 and 1.05. Different varieties of trace elements (such as C, N, 0, Si, Ca, and Mg) are quite common. I will review several recent proposals for explaining these abundance patterns. A particularly significant question is whether processes operating while the star cools as a white dwarf can account for their variety, or whether at least part of the white dwarf phenomenology is related to events which took place when the object was a planetary nebula or even earlier.

Type
VII. Planetaries and White Dwarfs
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 555 - 566
Copyright
Copyright © Kluwer 1989 

References

Angel, J.R.P., Borra, E.F., and Landstreet, J.D. 1981, Astrophys.J. Suppl. 45, 457.CrossRefGoogle Scholar
Bidelman, W.P. 1986, in IAU Colloquium No. 87. Hydrogen Deficient Stars and Related Objects, Hunger, K., Schonberner, D., and Rao, N.K., eds., (Dordrecht: Reidel), p. 3.Google Scholar
Fontaine, G., Villeneuve, G., Wesemael, F., and Wegner, G. 1984, Astrophys. J. Letters 277, L61.Google Scholar
Greenstein, J.L. 1960, in Stars and Stellar Systems, vol 6: Stellar Atmospheres, Greenstein, J.L., ed., (Chicago: University of Chicago Press), p. 676.Google Scholar
Greenstein, J.L. 1985, Publ. Astron. Soc. Pacific 97, 827.CrossRefGoogle Scholar
Greenstein, J.L. 1986, Astrophys. J., 304, 334.CrossRefGoogle Scholar
Guseinov, O.H., Novruzova, H.I., and Rustamov, Y.S. 1983, Astrophys. Space Sci. 96. 1.CrossRefGoogle Scholar
Guseinov, O.H., Novruzova, H.I., and Rustamov, Y.S. 1984, Astrophys. Space Sci. 97, 305.Google Scholar
Hamada, T., and Salpeter, E.E. 1961, Astrophys.J. 134, 683.Google Scholar
Heber, U. 1986, in Hudrogen Deficient Stars and Related Objects: Proceedings of IAU Colloquium 87, Hunger, K., Schonberner, D., and Kameswara Rao, N., eds., p. 33.Google Scholar
Iben, I. Jr. 1984, Astrophys.J. 277, 333.Google Scholar
Iben, I., and MacDonald, J. 1985, Astrophys.J. 296, 540.Google Scholar
Iben, I., and MacDonald, J. 1986, Astrophys. J. 301. 164.Google Scholar
Iben, I., and Renzini, A. 1983, Ann. Rev. Astron. Astrophys. 21, 271.CrossRefGoogle Scholar
Kapranidis, S., and Liebert, J. 1985, Astrophys.J. 305, 863.Google Scholar
Kenyon, S., Shipman, H.L., Sion, E.M., and Aannestad, P. 1988, Astrophys. J. Letters, submitted.Google Scholar
Koester, D., Schulz, H., and Weidemann, V. 1979, Astr.Astrophys. 76, 262.Google Scholar
Koester, D., Weidemann, V., and Zeidler, K.-T. E.-M. 1984, Astron. Astrophys. 116, 147.Google Scholar
Koester, D. 1984, Astrophys. Space Sci. 100, 471.Google Scholar
Koester, D., and Reimers, D. 1985, Astron. Astrophys. 153, 260.Google Scholar
Luyten, W. J. 1952, Astrophys.J. 116, 283.CrossRefGoogle Scholar
Liebert, J. 1980, Ann. Rev. Astron. Astrophys. 18, 363.Google Scholar
Liebert, J., Dahn, C.C., and Sion, E.M. 1983, in Proceedings of IAU Colloquium No. 76: the Nearby Stars and the Stellar Luminosity Function , ed. Philip, A.G.D. and Upgren, A., (Schenectady, NY: L. Davis Press, 1983, p. 103.Google Scholar
Liebert, J., Dahn, CO., Gresham, M., and Strittmatter, P.A. 1979, Astrophys.J., 233, 226.CrossRefGoogle Scholar
Liebert, J. 1986, in Hydrogen Deficient Stars and Related Objects: Proceedings of IAU Colloquium 87, Hunger, K., Schonberner, D., and Kameswara Rao, N., eds., p. 367.Google Scholar
Liebert, J., Wesemael, F., Hansen, C.J., Fontaine, G., Shipman, H.L., Sion, E.M., Winget, D.E., and Green, R.F. 1986, Astrophys.J. 309, 241.CrossRefGoogle Scholar
Liebert, J., Fontaine, G., and Wesemael, F. 1987, Memorie Societa Astronomica Italiana 58, 17.Google Scholar
McCook, G., and Sion, E. 1987, Astrophys. J. Suppl., in press.Google Scholar
Mendez, R., Miguel, I., Heber, U., and Kudritzki, R.P. 1987, in Hydrogen Deficient Stars and Related Objects: Proceedings of IAU Colloquium 87, Hunger, K., Schonberner, D., and Kameswara Rao, N., eds.Google Scholar
Michaud, G., Fontaine, G., and Charland, Y. 1984, Astrophys. J., 280, 247.Google Scholar
Nousek, J., Shipman, H., Liebert, J., Holberg, J., Pravdo, S., Giommi, P., and White, N. 1986, Astrophys.J., 309, 230.Google Scholar
Ockham, W. (1488). Summa Totius Logicae (Paris).Google Scholar
Oke, J.B., Weidemann, V., and Koester, D. 1984, Astrophys. J., 281, 276.Google Scholar
Payne, C.H. 1925, Stellar Atmospheres , (Cambridge, Mass.: the Observatory), p. 189.Google Scholar
Pelletier, C., Fontaine, G., Wesemael, F., Michaud, G., and Wegner, G. 1986, Astrophys.J. 307, 242.Google Scholar
Pilachowski, C., and Milkey, R.W. 1987, Publ. Astron. Soc. Pacific 99, 836.Google Scholar
Reimers, D., and Koester, D. 1982, Astron. Astrophys. 116, 341.Google Scholar
Ruiz, M.T., Maza, J., Wischnjewsky, M., and Gonzalez, L.E. 1986, Astrophys.J.(Letters) 304, L25.Google Scholar
Sarton, G. 1947. Introduction to the History of Science, vol. III. Science and Learning in the Fourteenth Century (Baltimore: Williams and Wilkins), pp. 549–557.Google Scholar
Schmidt, G., West, S.C., Liebert, J., Green, R.F., and Stockman, H.S. 1987, Astrophys.J. 309, 218.Google Scholar
Shipman, H.L. 1972, Astrophys. J., 177, 723.CrossRefGoogle Scholar
Shipman, H.L. 1979, Astrophys. J. , 228, 240.Google Scholar
Shipman, H.L., and Sass, C.A. 1980, Astrophys.J. 235, 177.Google Scholar
Shipman, H.L. 1983, in Proceedings of IAU Colloquium No. 76: the Nearby Stars and the Stellar Luminosity Function, ed. Philip, A.G.D. and Upgren, A., (Schenectady, NY: L. Davis Press, 1983, p. 417.Google Scholar
Shipman, H.L. 1987, in Proceedings of IAU Colloquium 95: the Second Conference on Faint Blue Stars, Philip, A.G.D., Hayes, D.S., and Liebert, J., eds., (Schenectady, NY: L.Davis Press), in press.Google Scholar
Shipman, H.L., Liebert, J., and Green, R.F. 1987, Astrophys.J. 315, 239.Google Scholar
Sion, E.M. 1984, Astrophys. J. 282, 612.Google Scholar
Sion, E.M. 1986, Publ. Astron. Soc. Pacific. 98, 821.Google Scholar
Sion, E.M., Greenstein, J.L., Landstreet, J.D., Liebert, J., Shipman, H.L., and Wegner, G. 1983, Astrophys.J. 269, 253.Google Scholar
Wegner, G. and Yackovich, F. 1984, Astrophys.J. 284, 257.CrossRefGoogle Scholar
Weidemann, V. 1984, Astron. Astrophys. 134, L1.Google Scholar
Weidemann, V. 1987, Memorie Societa Astronomica Italiana 58, 33.Google Scholar
Weidemann, V., and Koester, D. 1984, Astron. Astrophys. 132, 195.Google Scholar
Wesemael, F., Henry, R.B.C. and Shipman, H.L. 1984, Astrophys.J., 287, 868 CrossRefGoogle Scholar
Wesemael, F., Green, R.F., and Liebert, J. 1985, Astrophys. J. Suppl., 58, 379.Google Scholar
Winget, D.E., Hansen, C.J., Liebert, J., Van Horn, H.M., Fontaine, G., Nather, R.E., Kepler, S.O., and Lamb, D.Q. 1987, Astrophys.J. (Letters) 315, L77.Google Scholar