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The 13C Pocket in Low-Mass AGB Stars

Published online by Cambridge University Press:  05 March 2013

O. Straniero ,
S. Cristallo  and
R. Gallino
O. Straniero*
Affiliation:
INAF-Osservatorio Astronomico di Teramo, Via Mentore Maggini s.n.c., 64100 Teramo, Italy
S. Cristallo
Affiliation:
INAF-Osservatorio Astronomico di Teramo, Via Mentore Maggini s.n.c., 64100 Teramo, Italy
R. Gallino
Affiliation:
Dipartimento di Fisica Generale, Universitá di Torino, Via P. Giuria 1, 10125 Torino, Italy
*
CCorresponding author. Email: straniero@oa-teramo.inaf.it
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Abstract

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It is well known that thermally pulsing Asymptotic Giant Branch stars with low mass play a relevant role in the chemical evolution. They have synthesized about 30% of the galactic carbon and provide an important contribution to the nucleosynthesis of heavy elements (A > 80). The relevant nucleosynthesis site is the He-rich intermediate zone (less than 10−2 M⊙), where α(2α,γ)12C reactions and slow neutron captures on seed nuclei (essentially iron) take place. A key ingredient is the interplay between nuclear processes and convective mixing. It is the partial overlap of internal and external convective zones that allows the dredge-up of the material enriched in C and heavy elements. We review the progresses made in the last 50 years in the comprehension of the s process in AGB stars, with special attention to the identification of the main neutron sources and to the particular physical conditions allowing this important nucleosynthesis.

Keywords

nuclear reactions, nucleosynthesis, abundancesstars: AGB and post-AGB
Type
Theory, Evolution and Models
Information
Publications of the Astronomical Society of Australia , Volume 26 , Issue 3 , 2009 , pp. 133 - 138
Copyright
Copyright © Astronomical Society of Australia 2009

References

Abia, C., Busso, M., Gallino, R., Domínguez, I., Straniero, O. & Isern, J., 2001, ApJ, 559, 1117 Google Scholar
Abia, C. et al., 2002, ApJ, 579, 817 Google Scholar
Arlandini, C., Käppeler, F., Wisshak, K., Gallino, R., Lugaro, M., Busso, M. & Straniero, O., 1999, ApJ, 525, 886 Google Scholar
Bazan, G. & Lattanzio, J. C., 1993, ApJ, 409, 762 Google Scholar
Becker, S. A. & Iben, I. J., 1979, ApJ, 232, 831 Google Scholar
Bidelman, W. P. & Keenan, P. C., 1951, ApJ, 114, 473 Google Scholar
Bao, Z. Y. & Käppeler, F., 1987, ADNDT, 36, 411 CrossRefGoogle Scholar
Busso, M., Picchio, G., Gallino, R. & Chieffi, A., 1988, ApJ, 326, 196 Google Scholar
Busso, M., Lambert, D. L., Beglio, L., Gallino, R., Raiteri, C. M. & Smith, V. V., 1995, ApJ, 446, 775 Google Scholar
Busso, M., Gallino, R. & Wasserburg, G. J., 1999, ARA&A, 37, 239 Google Scholar
Cameron, A. G. W., 1955, ApJ, 121, 144 Google Scholar
Cameron, A. G. W., 1957a, AJ, 62, 138 Google Scholar
Cameron, A. G. W., 1957b, PASP, 69, 408 Google Scholar
Cameron, A. G. W., 1960, AJ, 65, 485 Google Scholar
Castellani, V., Chieffi, A. & Straniero, O., 1991, ApJS, 74, 463 Google Scholar
Clayton, D. D., 1961, AnPhy, 12, 331 Google Scholar
Chieffi, A. & Straniero, O., 1989, ApJS, 71, 47 CrossRefGoogle Scholar
Cristallo, S., Straniero, O., Gallino, R., Piersanti, L., Domínguez, I. & Lederer, M. T., 2009, ApJ, 696, 797 Google Scholar
Denissenkov, P. A. & Tout, C. A., 2003, MNRAS, 340, 722 Google Scholar
Fowler, W. A., Burbidge, G. R. & Burbidge, E. M., 1955, ApJ, 122, 271 Google Scholar
Frost, C. & Lattanzio, J. C., 1996, ApJ, 473, 383 Google Scholar
Gallino, R., Busso, M., Picchio, G., Raiteri, C. M. & Renzini, A., 1988, ApJ, 334, 45 Google Scholar
Gallino, R., Arlandini, C., Busso, M., Lugaro, M., Travaglio, C., Straniero, O., Chieffi, A. & Limongi, M., 1998, ApJ, 497, 388 Google Scholar
Herwig, F., 2000, A&A, 360, 952 Google Scholar
Herwig, F., Bloecker, T., Schoenberner, D. & El Eid, M., 1997, A&A, 324, L81 Google Scholar
Herwig, F., Freytag, B., Hueckstaedt, R. M & Timmes, F. X., 2006, ApJ, 642, 1057 CrossRefGoogle Scholar
Hollowell, D. & Iben, I. J., 1989, ApJ, 340, 966 Google Scholar
Hollowell, D., Iben, I. J. & Fujimoto, M. Y., 1990, ApJ, 351, 245 Google Scholar
Hubner, W. F., Merts, A. L., Magee, N. H. & Argo, M. F., 1977, Los Alamos Sc. Lab. Rept. (LA-6760-M)Google Scholar
Iben, I. J., 1975, ApJ, 196, 525 Google Scholar
Iben, I. J., 1982, ApJ, 260, 821 CrossRefGoogle Scholar
Iben, I. J. & Renzini, A., 1982, ApJ, 263, L23 Google Scholar
Lambert, D. L., Smith, V. V., Busso, M., Gallino, R. & Straniero, O., 1995, ApJ, 450, 302 Google Scholar
Langer, N., Heger, A., Wellstein, S. & Herwig, F., 1999, A&A, 346, L37 Google Scholar
Malaney, R. A., 1987, ApJ, 321, 832 Google Scholar
Malaney, R. A. & Lambert, D. L., 1988, MNRAS, 235, 695 Google Scholar
Marconi, M., Castellani, V. & Straniero, O., 1998, A&A, 160, 340 Google Scholar
Meakin, C. A. & Arnett, D., 2007, ApJ, 667, 448 Google Scholar
Merrill, P. W., 1952, ApJ, 116, 21 CrossRefGoogle Scholar
Picardi, I., Chieffi, A., Limongi, M., Pisanti, O., Miele, G., Mangano, G. & Imbriani, G., 2004, ApJ, 609, 1035 Google Scholar
Sackmann, J., 1980, ApJ, 235, 554 Google Scholar
Salpeter, E. E., 1952, ApJ, 115, 326 Google Scholar
Sandage, A. R. & Schwarzschild, M., 1952, ApJ, 116, 463 Google Scholar
Schwarzschild, M. & Härm, R., 1967, ApJ, 150, 961 Google Scholar
Seeger, P. H., Fowler, W. A. & Clayton, D. D., 1965, ApJS, 11, 121 Google Scholar
Smith, V. V. & Lambert, D. L., 1986, ApJ, 311, 843 Google Scholar
Straniero, O., Gallino, R., Busso, M., Chieffi, A., Raiteri, C. M., Limongi, M. & Salaris, M., 1995, ApJ, 440, L85 Google Scholar
Straniero, O., Chieffi, A., Limongi, M., Busso, M., Gallino, R. & Arlandini, C., 1997, ApJ, 478, 332 Google Scholar
Straniero, O., Gallino, R. & Cristallo, S., 2006, NuPhA, 777, 111 Google Scholar
Sugimoto, D. & Nomoto, K., 1975, PASJ, 27, 197 Google Scholar
Truran, J. & Iben, I. J., 1977, ApJ, 216, 797 Google Scholar
Ulrich, R. K., 1973, in ‘Explosive Nucleosnthesis’ (Austin: University of Texas)Google Scholar
Weigert, A., 1966, ZPhy, 64, 395 Google Scholar