Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-16T15:20:58.535Z Has data issue: false hasContentIssue false
  • English
  • Français

Photoionization Models

Published online by Cambridge University Press:  19 July 2016

J. Patrick Harrington
J. Patrick Harrington*
Affiliation:
Astronomy Program, University of Maryland, College Park, Maryland 20742

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

A recent comparison of the photoionization models generated by five independent codes run with the same density and stellar radiation shows substantial agreement. Problems are more likely to arise with the defining parameters: the density distribution should be based on observed images, and the ionizing radiation should be from model atmosphere calculations, which, however, are inadequate for stars with winds. Models can be improved by including dust and by incorporating, self-consistently, radiative transfer in optically thick lines. Future work may extend modeling to axially-symmetric objects, to the interface with the hot, shocked, stellar wind, and to the molecular component present around many nebulae.

Type
II. Nebular Properties
Information
Symposium - International Astronomical Union , Volume 131: Planetary Nebulae , 1989 , pp. 157 - 166
Copyright
Copyright © Kluwer 1989 

References

Adam, J., and Koppen, J. 1985. Astron. Astrophys., 142, 461.Google Scholar
Aller, L.H., Keyes, C.D., Maran, S.P., Gull, T.R., Michalitsianos, A.G., and Stecher, T.P. 1987. Ap. J., 320, 159.Google Scholar
Clegg, R.E.S. 1987. M.N.R.A.S., 229, 31P.Google Scholar
Clegg, R.E.S. and Harrington, J.P. 1988, in preparation.Google Scholar
Clegg, R.E.S., Harrington, J.P., Barlow, M.J., and Walsh, J.R. 1987. Ap. J., 314, 551.Google Scholar
Clegg, R.E.S., Harrington, J.P., and Storey, P.J. 1986. M.N.R.A.S., 221, 61P.CrossRefGoogle Scholar
Clegg, R.E.S. and Middlemass, D. 1987. M.N.R.A.S., 228, 759.CrossRefGoogle Scholar
Clegg, R.E.S., Peimbert, M., and Torres-Peimbert, S. 1987. M.N.R. A.S., 224, 761.CrossRefGoogle Scholar
Clegg, R.E.S., and Walsh, J.R., 1985. M.N.R.A.S., 215, 323.Google Scholar
Ferland, G.J. 1986. Ap. J., 310, L67.Google Scholar
Flower, D.R. 1968. Ap. Letters, 2, 205.Google Scholar
Goodson, W.L. 1967. Z. fur Astrophys., 66, 118.Google Scholar
Harrington, J.P. 1968. Ap. J., 152, 943.CrossRefGoogle Scholar
Harrington, J.P. 1978. I.A.U. Symposium No. 76 “Planetary Nebulae”, ed. Terzian, Y. (D.Reidel; Dordrecht Holland), p. 151.Google Scholar
Harrington, J.P. and Feibelman, W.A. 1983. Ap. J., 265, 258.Google Scholar
Harrington, J.P., Monk, D.J., and Clegg, R.E.S. 1988. M.N.R.A.S., in press.Google Scholar
Henry, R.B.C., and Shipman, H.L. 1986. Ap. J., 311, 774.Google Scholar
Hummer, D.G., and Mihalas, D. 1970. M.N.R.A.S., 147, 339.Google Scholar
Husfeld, R., Kudritzki, R.P., Simon, K.P., and Clegg, R.E.S. 1984. Astron. Astrophys., 134, 139.Google Scholar
Korte, P.A.J. de, Claas, J.J., Jansen, F.A., and McKechnie, S.P. 1985. Advances in Space Research, 5, No. 3, 57.Google Scholar
Mendez, R.H., Kudritzki, R.P., Gruschinske, J., and Simon, K.P. 1981. Astron. Astrophys., 101, 323.Google Scholar
Mihalszki, J.S., and Ferland, G.J. 1983. Pub. Astron. Soc. Pacific, 95, 284.Google Scholar
Olson, G.L., Auer, L.H., and Buchler, J.R. 1986. J. Quant. Spectrosc. Radiat. Transfer, 35, 431.CrossRefGoogle Scholar
Peimbert, M. 1967. Ap. J., 150, 825.Google Scholar
Peimbert, M. and Torres-Peimbert, S. 1987. Rev. Mexicana Astron. Astrofis., in press.Google Scholar
Pequignot, D. 1978. I.A.U. Symposium No. 76 “Planetary Nebulae”, ed. Terzian, Y., (D.Reidel; Dordrecht Holland), p. 162.Google Scholar
Pequignot, D. 1986. “Workshop on Model Nebulae”, p 363, Pub. de l'Observatoire de Paris.Google Scholar
Stasinska, G., and Tylenda, R. 1986. Astron. Astrophys., 155, 137.Google Scholar
Stecher, T.P., Maran, S.P., Gull, T.R., Aller, L.H., and Savedoff, M. 1982. Ap. J. Letters, 262, L41.CrossRefGoogle Scholar
Weymann, R.J., and Williams, R.E. 1969. Ap. J., 157, 1201.Google Scholar
Williams, R.E. 1968. I.A.U. Symposium No. 34 “Planetary Nebulae”, ed. Osterbrock, D.E. and O'Dell, C.R. (D.Reidel; Dordrecht Holland), p. 190.Google Scholar