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The s-process in Post-AGB Stars

Published online by Cambridge University Press:  26 May 2016

Hans Van Winckel
Hans Van Winckel*
Affiliation:
Instituut voor Sterrenkunde, K.U. Leuven, Celestijnenlaan 200B, 3001 Heverlee, Belgium

Abstract

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In this contribution an overview is given of recent accurate chemical abundance studies in post-AGB stars. The intrinsic nature of the enrichement and the spread in metallicity together with the absence of strong molecular veiling make post-AGB stars very useful to constrain AGB (chemical) evolutionary models. S-process enrichment is, however, not a general characteristic of post-AGB stars and a photospheric chemical study is not always a good tracer for the evolved status of an object.

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. 91 - 98
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Abia, C., & Wallerstein, G. 1998, MNRAS, 293, 89 CrossRefGoogle Scholar
Abia, C., & Isern, J. 2000, ApJ, 536, 438 CrossRefGoogle Scholar
Abia, C., Busso, M., Gallino, R., Dominguez, I., Straniero, O., & Isern, J. 2001, ApJ, 559, 1117 Google Scholar
Bakker, E.J., van Dishoeck, E.F., Waters, L.B.F.M., & Schoenmaker, T. 1997, A&A, 323, 469 Google Scholar
Bakker, E.J., Lambert, D.L. 1998, ApJ, 508, 387 CrossRefGoogle Scholar
Busso, M., Lambert, D.L., Beglio, L., et al. 1995, ApJ, 446, 775 Google Scholar
Busso, M., Gallino, R., & Wasserburg, G.J., 1999, ARA&A, 37, 239 Google Scholar
Busso, M., Galino, R, Lambert, D.L., Travaglio, C., & Smith, V.V. 2001, ApJ, 557, 802 CrossRefGoogle Scholar
Decin, L., Van Winckel, H., Waelkens, C., Bakker, E.J., 1998, A&A, 332, 928 Google Scholar
Dinerstein, H.L. 2001, ApJ, 550, L223 CrossRefGoogle Scholar
Goriely, S., & Mowlavi, N. 2000, A&A, 362, 559 Google Scholar
Kipper, T. 1998, Baltic Astron., 7, 435 Google Scholar
Klochkova, V.G., 1995, MNRAS, 272, 710 Google Scholar
Merrill, P.W. 1952, Science, 115, 484 Google Scholar
Reddy, B.E., Parthasarathy, M., Gonzalez, G., Bakker, E.J., 1997, A&A 328, 331 Google Scholar
Reddy, B.E., Bakker, E.J., & Hrivnak, B.J. 1999, ApJ, 524, 831 Google Scholar
Reddy, B.E., Lambert, D.L., Gonzalez, G., & Yong, D. 2002, ApJ, 564, 482 Google Scholar
Smith, V.V., & Lambert, D.L., 1990, ApJS, 72, 387 Google Scholar
Utsumi, K. 1985, in Cool Stars with Excesses of Heavy Elements, ed. Jashek, M. & Keenan, P.L., Reidel, Dordrecht, 243 CrossRefGoogle Scholar
Van Eck, S., Goriely, S., Jorissen, A., & Plez, B., 2001, Nature, 412, 793 Google Scholar
Van Winckel, H., & Reyniers, M. 2000, A&A, 354, 135 Google Scholar
Van Winckel, H., Waelkens, C., Waters, L.B.F.M. 1996, A&A, 306, L37 Google Scholar
Van Winckel, H., & Reyniers, M., 2001, Torun workshop, Post-AGB objects as a phase of stellar evolution, ed. Szcerba, R. & Gorny, S.K., Kluwer, 257 CrossRefGoogle Scholar
Začs, L., Klochkova, V.G., & Panchuk, V.E. 1995, MNRAS, 275, 764 Google Scholar
Zinner, E., Amari, S., 1999, in IAU Symp. 191, Asymptotic Giant Branch Stars, ed. Le Bertre, T., Lèbre, A. & Waelkens, C., 59 Google Scholar