Hostname: page-component-6bf8c574d5-gr6zb Total loading time: 0 Render date: 2025-02-21T21:08:03.536Z Has data issue: false hasContentIssue false
  • English
  • Français

Photospheric Abundances in Central Stars of Planetary Nebulae, and Evolutionary Implications

Published online by Cambridge University Press:  19 July 2016

Roberto H. Mendez
Roberto H. Mendez*
Affiliation:
Instituto de Astronomía y Física del Espacio C.C. 67, Suc. 28 1428 Buenos Aires, Argentina

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 available information about spectral characteristics and photospheric abundances of 115 CSPN is presented. About 33% of CSPN in the sample are H-deficient. Many (but not all) H-deficient CSPN show extremely high C abundances. There is also some evidence of a variety of C abundances among H-rich CSPN. The available evidence suggests that most CSPN leaving the AGB with a H-rich photosphere will become DA white dwarfs. The “late He shell flash + fast wind” (born-again) mechanism may offer a satisfactory way of explaining some of the H-deficient CSPN. However, at least in some cases, the complete ejection of the H-rich stellar envelope, and exposure of He-burned matter at the remnant stellar surface, must happen already at the time of departure from the AGB.

Type
The Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 145: Evolution of Stars: The Photospheric Abundance Connection , 1991 , pp. 375 - 386
Copyright
Copyright © Kluwer 1991 

References

Aller, L.H. 1968, in IAU Symp. 34 (Planetary Nebulae), p. 339.Google Scholar
Aller, L.H. 1977, R.A.S.C. Journal 71, 67.Google Scholar
Aller, L.H., Keyes, C.D. 1985, P.A.S.P. 97, 1142.CrossRefGoogle Scholar
Barlow, M.J. 1989, in IAU Symp. 131 (Planetary Nebulae), p. 319.Google Scholar
Chromey, F.R. 1980, Astron. J. 85, 853.CrossRefGoogle Scholar
Cohen, M., Hudson, H.S., O'Dell, S.L., Stein, W.A. 1977, M.N.R.A.S. 181, 233.CrossRefGoogle Scholar
Cohen, M., Jones, B.F. 1987, Astrophys. J. 321, L151.CrossRefGoogle Scholar
Dahari, O., Osterbrock, D.E. 1984, Astrophys. J. 277, 648.CrossRefGoogle Scholar
Downes, R.A. 1984, P.A.S.P. 96, 807.CrossRefGoogle Scholar
Drilling, J.S. 1985, Astrophys. J. 294, L107.CrossRefGoogle Scholar
Feibelman, W.A., Bruhweiler, F.C. 1990, Astrophys. J. 357, 548.CrossRefGoogle Scholar
Fontaine, G., Wesemael, F. 1987, in IAU Coll. 95 (The Second Conference on Faint Blue Stars), eds. Davis Philip, A.G. et al., L. Davis Press, Schenectady, New York, p. 319.Google Scholar
Gabler, R., Gabler, A., Kudritzki, R.P., Puls, J., Pauldrach, A. 1989, Astron. Astrophys. 226, 162.Google Scholar
Goodrich, R.W., Dahari, O. 1985, Astrophys. J. 289, 342.CrossRefGoogle Scholar
Grauer, A.D., Bond, H.E. 1984, Astrophys. J. 277, 211.CrossRefGoogle Scholar
Green, R.F., Liebert, J., Wesemael, F. 1984, Astrophys. J. 280, 177.CrossRefGoogle Scholar
Greenstein, J.L., Minkowski, R. 1964, Astrophys. J. 140, 1601.CrossRefGoogle Scholar
Hamann, W.R., Wessolowski, U., Schwarz, E., Dünnebeil, G., Schmutz, W. 1990, in Properties of Hot Luminous Stars (Boulder-Munich Workshop), ed. Garmany, C.D., A.S.P. Conference Series 7, p. 259.Google Scholar
Hartl, H., Weinberger, R. 1987, Astron. Astrophys. Suppl. 69, 519.Google Scholar
Heap, S.R. 1975, Astrophys. J. 196, 195.CrossRefGoogle Scholar
Heap, S.R. 1977, Astrophys. J. 215, 609.CrossRefGoogle Scholar
Heap, S.R. 1982, in IAU Symp. 99 (Wolf-Rayet Stars), p. 423.Google Scholar
Heber, U., Werner, K., Drilling, J.S. 1988, Astron. Astrophys. 194, 223.Google Scholar
Herrero, A., Méndez, R.H., Manchado, A. 1990, in press.Google Scholar
Hillier, D.J. 1989, Astrophys. J. 347, 392.CrossRefGoogle Scholar
Hillier, D.J. 1990, in Properties of Hot Luminous Stars (Boulder-Munich Workshop), ed. Garmany, C.D., A.S.P. Conference Series 7, p. 340.Google Scholar
Hu, J.Y., Bibo, E.A. 1990, Astron. Astrophys. 234, 435.Google Scholar
van der Hucht, K.A., Conti, P.S., Lundström, I., Stenholm, B. 1981, Sp. Sci. Rev. 28, 227.CrossRefGoogle Scholar
van der Hucht, K.A., Williams, P.M. 1987, The Observatory 107, 270.Google Scholar
Husfeld, D. 1987, in IAU Coll. 95 (The Second Conference on Faint Blue Stars), eds. Davis Philip, A.G. et al., L. Davis Press, Schenectady, New York, p. 237.Google Scholar
Iben, I. 1984, Astrophys. J. 277, 333.CrossRefGoogle Scholar
Iben, I. 1989, in IAU Coll. 106 (Evolution of Peculiar Red Giant Stars), eds. Johnson, H. R. and Zuckerman, B., Cambridge Univ. Press, p. 205.Google Scholar
Kaler, J.B. 1985, Astrophys. J. 290, 531.CrossRefGoogle Scholar
Kaler, J.B., Shaw, R.A. 1984, Astrophys. J. 278, 195.CrossRefGoogle Scholar
Kaler, J.B., Shaw, R.A., Feibelman, W.A., Lutz, J.H. 1989, Astrophys. J. Suppl. 70, 213.CrossRefGoogle Scholar
Koester, D., Schönberner, D. 1986, Astron. Astrophys. 154, 125.Google Scholar
Kudritzki, R.P., Méndez, R.H. 1989, in IAU Symp. 131 (Planetary Nebulae), p. 273.Google Scholar
Liebert, J., Fleming, T.A., Green, R.F., Grauer, A.D. 1988, P.A.S.P. 100, 187.CrossRefGoogle Scholar
Liebert, J., Green, R., Bond, H.E., Holberg, J.B., Wesemael, F., Fleming, T.A., Kidder, K. 1989, Astrophys. J. 346, 251.CrossRefGoogle Scholar
Lundström, I., Stenholm, B. 1984, Astron. Astrophys. Suppl. 56, 43.Google Scholar
Lutz, J.H. 1977, Astrophys. J. 211, 469.CrossRefGoogle Scholar
Manchado, A., García Lario, P., Pottasch, S.R. 1989, Astron. Astrophys. 218, 267.Google Scholar
Masson, C.R. 1989, Astrophys. J. 346, 243.CrossRefGoogle Scholar
McCarthy, J.K. 1988, Ph.D. Thesis, Caltech.Google Scholar
McCarthy, J.K., Mould, J.R., Méndez, R.H., Kudritzki, R.P., Husfeld, D., Herrero, A., Groth, H.G. 1990, Astrophys. J. 351, 230.CrossRefGoogle Scholar
McCarthy, J.K., Rich, R.M., Becker, S.R., Butler, K., Husfeld, D., Groth, H.G. 1991, preprint.Google Scholar
Méndez, R.H., Groth, H.G., Husfeld, D., Kudritzki, R.P., Herrero, A. 1988b, Astron. Astrophys. 197, L25.Google Scholar
Méndez, R.H., Herrero, A., Manchado, A. 1990, Astron. Astrophys. 229, 152.Google Scholar
Méndez, R.H., Kudritzki, R.P., Gruschinske, J., Simon, K.P. 1981, Astron. Astrophys. 101, 323.Google Scholar
Méndez, R.H., Kudritzki, R.P., Herrero, A., Husfeld, D., Groth, H.G. 1988a, Astron. Astrophys. 190, 113.Google Scholar
Méndez, R.H., Kudritzki, R.P., Simon, K.P. 1985, Astron. Astrophys. 142, 289.Google Scholar
Méndez, R.H., Miguel, C.H., Heber, U., Kudritzki, R.P. 1986, in IAU Coll. 87 (H-deficient Stars and Related Objects), eds. Hunger, K. et al., Reidel, Ap. Sp. Sc. Lib. 128, 323.CrossRefGoogle Scholar
Méndez, R.H., Niemela, V.S. 1982, in IAU Symp. 99 (Wolf-Rayet Stars), p. 457.Google Scholar
Paczynski, B. 1971, Acta Astron. 21, 417.Google Scholar
Peña, M., Ruiz, M.T., Torres-Peimbert, S., Maza, J. 1990, preprint.Google Scholar
Pollacco, D.L., Tadhunter, C.N., Hill, P.W. 1990, M.N.R.A.S. 245, 204.CrossRefGoogle Scholar
Pottasch, S.R. 1989, in IAU Symp. 131 (Planetary Nebulae), p. 481.Google Scholar
Pritchet, C. 1984, Astron. Astrophys. 139, 230.Google Scholar
Rauch, T., Heber, U., Hunger, K., Werner, K., Neckel, T. 1990, Astron. Astrophys., in press.Google Scholar
Renzini, A. 1989, in IAU Symp. 131 (Planetary Nebulae), p. 391.Google Scholar
Sanduleak, N. 1983, P.A.S.P. 95, 619.CrossRefGoogle Scholar
Schmutz, W., Hamann, W.R., Wessolowski, U. 1989, Astron. Astrophys. 210, 236.Google Scholar
Schönberner, D. 1989, in IAU Symp. 131 (Planetary Nebulae), p. 463.Google Scholar
Schönberner, D., Drilling, J.S. 1985, Astrophys. J. 290, L49.CrossRefGoogle Scholar
Schönberner, D., Napiwotzki, R. 1990, Astron. Astrophys. 231, L33.Google Scholar
Seitter, W.C. 1987, The ESO Messenger, No. 50, p. 14.Google Scholar
Smith, L.F., Aller, L.H. 1969, Astrophys. J. 157, 1245.CrossRefGoogle Scholar
Thackeray, A.D. 1977, The Observatory 97, 165.Google Scholar
Torres-Peimbert, S., Peimbert, M., Peña, M. 1990, Astron. Astrophys. 233, 540.Google Scholar
Webster, B.L. 1975, M.N.R.A.S. 173, 437.CrossRefGoogle Scholar
Webster, B.L., Glass, LS. 1974, M.N.R.A.S. 166, 491.CrossRefGoogle Scholar
Weinberger, R. 1977, Astron. Astrophys. Suppl. 30, 343.Google Scholar
Weinberger, R., Dengel, J., Hartl, H., Sabbadin, F. 1983, Astrophys. J. 265, 249.CrossRefGoogle Scholar
Werner, K., Heber, U., Hunger, K. 1990, Astron. Astrophys., submitted.Google Scholar
Wood, P.R., Faulkner, D.J. 1986, Astrophys. J. 307, 659.CrossRefGoogle Scholar