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The Abundances of He, N, Ne, Ar and Cl

Published online by Cambridge University Press:  22 September 2016

James B. Kaler
James B. Kaler*
Affiliation:
University of Illinois Observatory

Extract

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Various abundance problems have been well reviewed by the two previous papers. The study of the compositions of planetary nebulae has been quite fruitful. Nebulae can be used to study elements which are difficult to study in stars. In particular, it has been shown that planetaries can contain matter which has undergone nuclear processing, which in turn can enhance the abundances of some elements, notably He and N. In addition, planetaries can be used to study composition gradients in the galaxy. Of particular relevance to these topics are papers by Peimbert and Torres-Peimbert (1971) (hereafter referred to as PTP) and Boeshaar (1975) on enhancement of N/O; by Kaler (1973) on He/H ratios; by Barker (1976) on He and N; by D'Odorico, Peimbert and Sabbadin (1976), Aller (1976) and Torres-Peimbert and Peimbert (1977) (hereafter referred to as TPP) on abundance gradients.

Type
Session V: Chemical Abundances
Information
Symposium - International Astronomical Union , Volume 76: Planetary Nebulae , 1978 , pp. 235 - 244
Copyright
Copyright © Reidel 1978 

References

Acton, L. W., Catura, R. C. and Joki, E. G. 1975, Astrophys. J. Letters, 195, L93.Google Scholar
Aller, L. H. 1956, Gaseous Nebulae, (New York: Wiley).Google Scholar
Aller, L. H. 1976, Publ. Astron. Soc. Pacific, 88, 574.CrossRefGoogle Scholar
Aller, L. H., Czyzak, S. J., Walker, M. F. and Krueger, T. K., Proc. Nat. Acad. Sci., 66, 1970.CrossRefGoogle Scholar
Barker, T. 1976, Bull. Am. Astron. Soc., 8, 371.Google Scholar
Boeshaar, G. O. 1975, Astrophys. J., 195, 695.Google Scholar
Boeshaar, G. W. and Bond, H. E. 1977, Astrophys. J., 213, 421.Google Scholar
Brocklehurst, M. 1971, Monthly Notices Roy. Ast. Soc., 153, 471.CrossRefGoogle Scholar
Brocklehurst, M. 1972, ibid., 157, 211.Google Scholar
Bruhweiler, F. C. 1977, , Univ. of Texas.Google Scholar
Cox, D. P. and Daltabuit, E. 1971, Astrophys. J., 167, 257.Google Scholar
Czyzak, S. J., Krueger, T. K. and Aller, L. H. 1970, Proc. Nat. Astrophys. Acad. Sci., 66, 282.CrossRefGoogle Scholar
D'Odorico, S., Peimbert, M. and Sabbadin, F. 1976, Astron. Astrophys., 47, 341.Google Scholar
Garstang, R. H. 1968, IAU Symposium No. 34, Planetary Nebulae, ed. Osterbrock, D. E. and O'Dell, C. R. (Dordrecht: Reidel), p. 143.Google Scholar
Harman, R. J. and Seaton, M. J. 1964, Monthly Notices Roy. Ast. Soc., 127, 217.Google Scholar
Kaler, J. B. 1973, 18th Liege Inst. Astrophys. Colloq., Mem. Soc. Roy. Sci. Liege, 6th Ser., 5, 33.Google Scholar
Kaler, J. B. 1976a, Astrophys. J. Suppl., 31, 517.Google Scholar
Kaler, J. B. 1976b, Astrophys. J., 210, 843.CrossRefGoogle Scholar
Lambert, D. L. 1968, Monthly Notices Roy. Ast. Soc., 138, 143.Google Scholar
Lambert, D. L. and Warner, B. 1968, Monthly Notices Roy. Ast. Soc., 138, 213.Google Scholar
Lutz, J. H. 1977, Publ. Astron. Soc. Pacific, 89, 10.Google Scholar
Marti, K., Wilkening, L. L. and Suess, H. E. 1972, Astrophys. J., 173 445.Google Scholar
Nussbaumer, H. 1971, Astrophys. J., 166, 411.Google Scholar
Osterbrock, D. E. 1974, Astrophysics of Gaseous Nebulae (San Francisco: Freeman).Google Scholar
Peimbert, M. and Torres-Peimbert, S. 1971, Astrophys. J., 168, 413.Google Scholar
Saraph, H. E. and Seaton, M. J. 1970, Mon. Not. Roy. Ast. Soc., 148, 367.Google Scholar
Seaton, M. J. 1968, Mon. Not. Roy. Ast. Soc., 139, 129.Google Scholar
Seaton, M. J. 1975, ibid., 170, 475.Google Scholar
Torres-Peimbert, S. and Peimbert, M. 1977, Rev. Mex. de Astron. y Astrofis., in press.Google Scholar
Truran, J. W. and Arnett, W. D. 1970, Astrophys. J., 160, 181.Google Scholar
Woosley, S. E., Arnett, W. D. and Clayton, D. D. 1973, Astrophys. J. Suppl., 26, 231.Google Scholar
Zipoy, D. M., Astrophys. J., 209, 108.Google Scholar