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Molecular Evolution from AGB Stars to Planetary Nebulae

Published online by Cambridge University Press:  21 December 2011

Sun Kwok
Sun Kwok*
Affiliation:
Faculty of Science, The University of Hong Kong, Hong Kong, China email: [email protected]
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Abstract

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The late stages of stellar evolution from the Asymptotic Giant Branch (AGB) to planetary nebulae represent the most active phase of molecular synthesis in a star's life. Over 60 molecular species, including inorganics, organics, radicals, chains, rings, and molecular ions have been detected in the circumstellar envelopes of evolved stars. Most interestingly, complex organic compounds of aromatic and aliphatic structures are synthesized over very short time intervals after the end of the AGB. Also appeared during the post-AGB evolution are the unidentified 21 and 30 μm emission features, which are believed to originate from carbonaceous compounds.

The circumstellar environment is an ideal laboratory for the testing of theories of chemical synthesis. The distinct spectral behavior among AGB stars, proto-planetary nebulae (PPN), and planetary nebulae (PN) and the short evolutionary time scales that separate these stages pose severe constraints on models. In this paper, we will present an observational summary of the chemical synthesis in the late stages of stellar evolution, discuss chemical and physical processes at work, and speculate on the possible effects these chemical products have on the Galaxy and the Solar System.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S280: The Molecular Universe , June 2011 , pp. 203 - 215
Copyright
Copyright © International Astronomical Union 2011

References

Alexander, C. M. O. D. 2011, these proceedingsGoogle Scholar
Alexander, C. M. O. D., Fogel, M., Yabuta, H., & Cody, G. D. 2007, Geochimica et Cosmochimica Acta, 71, 4380CrossRefGoogle Scholar
Allamandola, L. J., Tielens, A. G. G. M., & Barker, J. R. 1989, ApJS, 71, 733CrossRefGoogle Scholar
Allamandola, L. J., Hudgins, D. M., & Sandford, S. A. 1999, ApJ, 511, L115CrossRefGoogle Scholar
Cami, J. 2011, in PAHs and the Universe, eds. Joblin, C. & Tielens, A. G. G. M., EAS Publications Series, 46, 117Google Scholar
Cataldo, F., Keheyan, Y., & Heymann, D. 2002, Int. J. Astrobiology, 1, 79CrossRefGoogle Scholar
Cataldo, F. & Keheyan, Y. 2003, Int. J. Astrobiology, 2, 41CrossRefGoogle Scholar
Cataldo, F., Keheyan, Y., & Heymann, D. 2004, Origins of Life and Evolution of the Biosphere, 34, 13CrossRefGoogle Scholar
Cernicharo, J., Heras, A. M., Tielens, A. G. G. M., Pardo, J. R., Herpin, F., Gulin, M., & Waters, L. B. F. M. 2001, ApJ, 546, L123CrossRefGoogle Scholar
Clayton, G. C., et al. 2003, ApJ, 592, 947CrossRefGoogle Scholar
Colangeli, L., Mennella, V., Palumbo, P., Rotundi, A., & Bussoletti, E. 1995, A&AS, 113, 561Google Scholar
Derenne, S. & Robert, F. 2010, Meteoritics and Planetary Science, 45, 1461CrossRefGoogle Scholar
Draine, B. T. & Li, A. 2007, ApJ, 657, 810CrossRefGoogle Scholar
Duley, W. W. & Williams, D. A. 1981, MNRAS, 196, 269CrossRefGoogle Scholar
Duley, W. W. & Hu, A. 2009, ApJ, 698, 808CrossRefGoogle Scholar
Evans, A., Tyne, V. H., Smith, O., Geballe, T. R., Rawlings, J. M. C., & Eyres, S. P. S. 2005, MNRAS, 360, 1483CrossRefGoogle Scholar
Flynn, G. J., Keller, L. P., Feser, M., Wirick, S., & Jacobsen, C. 2003, Geochimica et Cosmochimica Acta, 67, 4791CrossRefGoogle Scholar
Geballe, T. R., Tielens, A. G. G. M., Kwok, S., & Hrivnak, B. J. 1992, ApJ, 387, L89CrossRefGoogle Scholar
Guélin, M. 2011, these proceedingsGoogle Scholar
Guillois, O., Nenner, I., Papoular, R., & Reynaud, C. 1996, ApJ, 464, 810CrossRefGoogle Scholar
Hrivnak, B. J., Volk, K., & Kwok, S. 2000, ApJ, 535, 275CrossRefGoogle Scholar
Hrivnak, B. J., Geballe, T. R., & Kwok, S. 2007, ApJ, 662, 1059CrossRefGoogle Scholar
Hrivnak, B. J., Volk, K., & Kwok, S. 2009, ApJ, 694, 1147CrossRefGoogle Scholar
Hudgins, D. M. & Allamandola, L. J., 1999, ApJ, 516, L41CrossRefGoogle Scholar
Jäger, C., Huisken, F., Mutschke, H., Jansa, I. L., & Henning, T. H. 2009, ApJ, 696, 706CrossRefGoogle Scholar
Jones, A. P., Duley, W. W., & Williams, D. A. 1990, Quart. J. Roy. Astr. Soc., 31, 567Google Scholar
Keller, L. P., Messenger, S., Flynn, G. J., Clemett, S., Wirick, S., & Jacobsen, C. 2004, Geochimica et Cosmochimica Acta, 68, 2577CrossRefGoogle Scholar
Kerridge, J. F. 1999, Sp. Sci. Rev., 90, 275CrossRefGoogle Scholar
Knacke, R. F. 1977, Nature, 269, 132CrossRefGoogle Scholar
Kwok, S. 1993, Ann. Rev. Astr. Ap., 31, 63CrossRefGoogle Scholar
Kwok, S. 2000, The Origin and Evolution of Planetary Nebulae, CUPCrossRefGoogle Scholar
Kwok, S. 2004, Nature, 430, 985CrossRefGoogle Scholar
Kwok, S. 2011, Organic Matter in the Universe, WileyCrossRefGoogle Scholar
Kwok, S., Volk, K., & Bidelman, W. P. 1997, ApJS, 112, 557CrossRefGoogle Scholar
Kwok, S., Volk, K. M., & Hrivnak, B. J. 1989, ApJ, 345, L51CrossRefGoogle Scholar
Kwok, S., Volk, K., & Hrivnak, B. J. 1999, A&A, 350, L35Google Scholar
Kwok, S., Volk, K., & Bernath, P. 2001, ApJ, 554, L87CrossRefGoogle Scholar
Papoular, R. 2011, MNRAS, 415, 494CrossRefGoogle Scholar
Papoular, R., Conrad, J., Giuliano, M., Kister, J., & Mille, G. 1989, A&A, 217, 204Google Scholar
Peeters, E., Hony, S., Van Kerckhoven, C., et al. , 2002, A&A 390, 1089Google Scholar
Pilleri, P. et al. 2009, MNRAS, 397, 1053CrossRefGoogle Scholar
Prieto, J. L., Sellgren, K., Thompson, T. A., & Kochanek, C. S. 2009, ApJ, 705, 1425CrossRefGoogle Scholar
Puget, J. L. & Léger, A. 1989, Ann. Rev. Astr. Ap., 27, 161CrossRefGoogle Scholar
Sakata, A., Wada, S., Onaka, T., & Tokunaga, A. T. 1987, ApJ, 320, L63CrossRefGoogle Scholar
Sandford, S. et al. 2006, Science, 314, 1720CrossRefGoogle Scholar
Scott, A. & Duley, W. W. 1996, ApJ, 472, L123CrossRefGoogle Scholar
Uchida, K. I., Sellgren, K., Werner, M. W., & Houdashelt, M. L. 2000, ApJ, 530, 817CrossRefGoogle Scholar
Van Kerckhoven, C., et al. 2000, A&A, 357, 1013Google Scholar
Volk, K., Xiong, G.-Z., & Kwok, S. 2000, ApJ, 530, 408CrossRefGoogle Scholar
Volk, K. et al. 2011, ApJ, 735, 127CrossRefGoogle Scholar
Zhang, C. Y. & Kwok, S. 1991, A&A, 250, 179Google Scholar
Zhang, Y., Kwok, S., & Hrivnak, B. J. 2010, ApJ, 725, 990CrossRefGoogle Scholar
Zinner, E. 1998, Ann. Rev. Earth Planet. Sci., 26, 147CrossRefGoogle Scholar