Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-01-07T15:13:01.486Z Has data issue: false hasContentIssue false
  • English
  • Français

H- and He-burning Central Stars and the Evolution to White Dwarfs

Published online by Cambridge University Press:  26 May 2016

T. Blöcker
T. Blöcker*
Affiliation:
Max–Planck–Institut für Radioastronomie, 53121 Bonn, Germany

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The structure and evolution of central stars of planetary nebulae (CSPNe) is reviewed. CSPNe represent the rapid transitional stage between the Asymptotic Giant Branch (AGB) and the white-dwarf domain. It is shown that the whole evolution off the AGB through the central-star regime depends on the evolutionary history. The detailed evolution into a white dwarf is controlled by the internal stellar structure which, in turn, is determined by the duration of the preceding AGB evolution and therefore by the AGB mass-loss history. The evolution of hydrogen-deficient central stars has been a matter of debate since many years. Convective overshoot appears to be a key ingredient to model these objects. Various thermal-pulse scenarios with inclusion of overshoot are discussed, leading to surface abundances in general agreement with those observed for Wolf-Rayet central stars.

Type
Part III: Planetary Nebulae in the Scheme of Stellar Evolution
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 101 - 108
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Blöcker, T., 1995a, A&A 297, 727 Google Scholar
Blöcker, T., 1995b, A&A 299, 755 Google Scholar
Blöcker, T., 2001, Ap&SS 275, 1 Google Scholar
Blöcker, T., Schönberner, D., 1990, A&A 240, L11 Google Scholar
Blöcker, T., Schönberner, D., 1997, A&A 324, 991 Google Scholar
Cohen, M., Barlow, M.J., Sylvester, R.J., Liu, X.-W., Cox, P., Lim, T., Schmitt, B., Speck, A.K., 1999, ApJ 513, L135 Google Scholar
Dreizler, S. & Heber, U., 1998, A&A 334, 618.Google Scholar
Freytag, B., Ludwig, H.-G., Steffen, M. (1996), A&A 313, 497 Google Scholar
Fujimoto, M.Y., 1977, PASJ 29, 331 Google Scholar
Habing, H.J., 1996, A&AR 7, 97 Google Scholar
Herwig, F., 2001a, Ap&SS 275, 15 Google Scholar
Herwig, F., 2001b, ApJ 554, L71 Google Scholar
Herwig, F., Blöcker, T., Schönberner, D., El Eid, M., 1997, A&A 324, L81 Google Scholar
Herwig, F., Blöcker, T., Langer, N., Driebe, T., 1999, A&A 349, L5 Google Scholar
Iben, I. Jr., 1984, ApJ 277, 333 Google Scholar
Iben, I. Jr., 1995, Physics Reports 250, 1 Google Scholar
Iben, I. Jr. & MacDonald, J., 1995, White dwarfs, Lecture Notes in Physics 443, Koester, D., Werner, K. (eds.), Springer, p. 48 Google Scholar
Koesterke, L. & Hamann, W.R., 1997, A&A 320, 91 Google Scholar
Mendez, R.H., 1991, Evolution of Stars: The Photospheric Abundance Connection, IAU Symp. 145, Michaud, G., Tutokov, A. (eds.), Kluwer, p. 375 CrossRefGoogle Scholar
Paczyński, B., 1970, Acta Astron. 20, 47 Google Scholar
Paczyński, B., 1971, Acta Astron. 21, 417 Google Scholar
Pauldrach, A., Puls, J., Kudritzki, R.P., Méndez, R., Heap, S.R.: 1988, A&A 207, 123 Google Scholar
Perinotto, M.: 1989, Planetary Nebulae, IAU Symp. 131, Torres-Peimbert, S., Ed., Kluwer, p. 293 Google Scholar
Schönberner, D., 1979, A&A 79, 108 Google Scholar
Schönberner, D., 1983, ApJ 272, 708 Google Scholar
Schönberner, D., 1997, Planetary Nebulae, IAU Symp. 180, Habing, H.J. & Lamers, H.J.G.L.M. (eds.), Kluwer, p. 379 Google Scholar
Schwarzschild, M. & Härm, R., 1965, ApJ 142 855.Google Scholar
Tylenda, R, 1996, H-deficient stars, Jefferey, C. S. & Heber, U. (eds.), ASP Conf. Ser. 96, 267 Google Scholar
Vassiliadis, E. & Wood, P.R., 1993, ApJ 413, 641 Google Scholar
Vassiliadis, E. & Wood, P.R., 1994, ApJS 92, 125 CrossRefGoogle Scholar
Waters, L.B.F.M., Beintema, D.A., Zijlstra, A.A., de Koter, A., Molster, F.J., Bouwman, J., de Jong, T., Pottasch, S.R., de Graauw, T., 1998, A&A 331, L61.Google Scholar
Weigert, A., 1966, Z. Astrophys. 64, 395 Google Scholar
Wood, P.R., 1997, Planetary Nebulae, IAU Symp. 180, Habing, H.J. & Lamers, H.J.G.L.M. (eds.), Kluwer, p. 297 CrossRefGoogle Scholar
Wood, P.R. & Faulkner, D.J., 1986, ApJ 307, 659 CrossRefGoogle Scholar