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Photochemistry and Molecular Formation in Planetary Nebulae

Published online by Cambridge University Press:  26 May 2016

Tatsuhiko I. Hasegawa
Tatsuhiko I. Hasegawa*
Affiliation:
University of Calgary, Department of Physics and Astronomy, Calgary, AB T2N 1N4, Canada

Abstract

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Photo-chemical processes in hot neutral gas are summarized that are likely responsible for the destruction and formation of observed molecules in planetary nebulae. According to the hot gas scenario, detected simple molecules such as CN, HCN, C2H, and HCO+ are destroyed in a matter of a week, but are constantly and quickly re-formed.

Type
Part V: Dust and Molecules in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 249 - 256
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

Ali, A., Shalabiea, O. M., El-Naraway, M. S., & Millar, T. J. 2001, MNRAS, 325, 881 Google Scholar
Bachiller, R., Forveille, T., Huggins, P. J., & Cox, P. 1997, A&A, 324, 1123 Google Scholar
Bachiller, R., Planesas, P., Martin-Pintado, J., Bujarrabal, V., & Tafalla, M. 1989, A&A, 210, 366 Google Scholar
Black, J. H. 1978, ApJ, 222, 125 Google Scholar
Black, J. H. 1983, in IAU Symp. Planetary Nebulae, ed. Flower, D. R. (Dordrecht, Reidel), 91 CrossRefGoogle Scholar
Cernicharo, J., et al. 1997, ApJ, 483, L65 Google Scholar
Cox, P., et al. 1997, A&A, 321, 907 Google Scholar
Cox, P., Gusten, R., & Henkel, C. 1987, A&A, 181, L19 Google Scholar
Cox, P., Omont, A., Huggins, P. J., Bachiller, R., & Forveille, T. 1992, A&A, 266, 420 Google Scholar
Deguchi, S., et al. 1990, ApJ, 351, 522 Google Scholar
Hasegawa, T. I., & Kwok, S. 2001, ApJ, 562, 824 Google Scholar
Hasegawa, T. I., Volk, K, & Kwok, S. 2000, ApJ, 532, 994 Google Scholar
Hollenbach, & Tielens, 1997, ARA&A, 35, 179 Google Scholar
Hora, J. L., Latter, W. B., & Deutsch, L. K. 1999, ApJS, 124, 195 CrossRefGoogle Scholar
Howe, D. A., Hartquist, T. W., & Williams, D. A. 1994, MNRAS, 271, 811 Google Scholar
Howe, D. A., Millar, T. J., & Williams, D. A. 1992, MNRAS, 255, 217 Google Scholar
Howe, D. A., & Williams, D. A. 1998, in The Molecular Astrophysics of Stars and Galaxies , ed. Hartquist, T. W. & Williams, D. A. (London, Oxford University Press), 347 Google Scholar
Huggins, P. J. 1993, in IAU Symp. 155, Planetary Nebulae, ed. Weinberger, R. & Acker, A. (Dordrecht: Kluwer), 147 Google Scholar
Huggins, P. J., Bachiller, R., Cox, P., & Forveille, T. 1996, A&A, 315, 284 Google Scholar
Justtanont, K., et al. 2000, A&A, 360, 1117 Google Scholar
Kastner, J. H., Weintraub, D. A., Gatley, I., Merrill, K. M., & Probst, R. G. 1996, ApJ, 462, 777 Google Scholar
Latter, W. B., Kelly, D. M., Hora, J. K., & Deutsch, L. K. 1995 ApJS, 100, 159 Google Scholar
Latter, W. B., Walker, C. K., & Malony, P. R. 1993, ApJ, 419, L97 Google Scholar
Le Teuff, Y. Y., Millar, T. J., & Markwick, A. J. 2000, A&AS, 148, 157 Google Scholar
Likkel, L., Morris, M., Forveille, T., & Omont, A. 1988, A&A, 198, L1 Google Scholar
Liu, X.-W., et al. 1996, A&A, 315, L257 Google Scholar
Liu, X.-W., et al. 1997, MNRAS, 290, L71 Google Scholar
Mufson, S. L., Lyon, J., & Marionni, P. A. 1975, ApJ, 201, L85 Google Scholar
Natta, A., & Hollenbach, D. 1998, A&A, 337, 517 Google Scholar
Pottasch, S. R., Goss, W. M., Arnal, E. M., & Gathier, R. 1982, A&A, 106, 229 Google Scholar
Sahai, R., Wooten, A., & Clegg, R. E. S. 1992, in IAU Symp. 155, Planetary Nebulae, ed. Weinberger, R. & Acker, A. (Dordrecht: Kluwer), 229 Google Scholar
Sternberg, A., & Dalgarno, A. 1995, ApJS, 99, 565 Google Scholar
Tielens, A. G. G. M. 1993, in IAU Symp. 155, Planetary Nebulae, ed. Weinberger, R. & Acker, A. (Dordrecht: Kluwer), 147 Google Scholar
Tielens, A. G. G. M. & Hollenbach, D. J. 1985, ApJ, 291, 722 Google Scholar
Treffers, R. R., Fink, U., Larson, H. P., & Gautier, T. N. 1976, ApJ, 209, 793 Google Scholar
Volk, K., & Kwok, S. 1997, ApJ, 477, 722 Google Scholar
Woods, P. M., Millar, T. J., Zijlstra, A. A., & Herbst, E. 2002, this Symposium Google Scholar
Yan, M., Federman, S. R., Dalgarno, A., & Bjorkman, J. E. 1999, ApJ, 515, 640 Google Scholar