Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-29T09:29:46.196Z Has data issue: false hasContentIssue false
  • English
  • Français

Ultraviolet Observations of Planetary Nebulae

Published online by Cambridge University Press:  22 September 2016

G.A. Gurzadyan
G.A. Gurzadyan*
Affiliation:
Garny Space Astronomy Laboratory Armenian SSR, USSR

Extract

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.

The ultraviolet spectra of gaseous nebulae have for long been arresting the attention of astrophysicists. The 60's saw the first attempts at plotting the expected spectra of planetary nebulae between 3000 and 912 Å (Code 1960; Aller 1961). This was followed by an examination of the expected forbidden lines (about thirty of them) in the ultraviolet, and of their relation to physical parameters (Gurzadyan 1965; Osterbrock 1963). Even more accurate calculations were made for the intensities of stronger lines in highly excited nebulae (Flower 1968). At the same time preliminary estimates were being made of atomic parameters for various transitions - the collision strengths, the probabilities of forbidden transitions, etc. (Czyzak et al. 1968; Garstang 1968). The computations of various models for planetary nebulae also bear on the above studies (Harrington 1968; Kirkpatrick 1970).

Type
Session II: Observations of Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 76: Planetary Nebulae , 1978 , pp. 79 - 91
Copyright
Copyright © Reidel 1978 

References

Aller, L.H. 1951, Ap.J. 113, 125.CrossRefGoogle Scholar
Aller, L.H. 1961, Mem. Soc. Roy. Sci., Liège, IV.Google Scholar
Aller, L.H., Bowen, I.S. and Minkowski, R. 1955, Ap.J., 122, 62.Google Scholar
Bless, R.C. and Savage, B.D. 1972, Ap.J. 171, 293.CrossRefGoogle Scholar
Bohlin, R.C., Marionni, P.A. and Stecher, T.P. 1975, Ap.J., 202, 415.CrossRefGoogle Scholar
Browen, R.L. and Mathews, W.G. 1970, Ap.J. 160, 939.CrossRefGoogle Scholar
Code, A.D. 1960, Ap.J. 65, 278.Google Scholar
Czyzak, S.J., Krueger, T.K., Martins, P. de A.P., Saraph, H.E., Seaton, M.J., Shemming, J.; 1968, IAU Symposium No. 34, Planetary Nebulae. Ed. Osterbrock, D.E. and O'Dell, C.R., p. 138.Google Scholar
Flower, D.R. 1968, IAU Symposium No. 34, p. 77.Google Scholar
Garstang, R.H. 1968, IAU Symposium No. 34, p. 143.Google Scholar
Gurzadyan, G.A. 1961, Docl. Akad. Nauk SSSR, 141, 1061; Trans. Soviet Phys. Docl. 6, 1031, 1962.Google Scholar
Gurzadyan, G.A. 1965, Astrofizika, 1, 91.Google Scholar
Gurzadyan, G.A. 1969, Planetary Nebulae, Gordon and Breach, NY.Google Scholar
Gurzadyan, G.A. 1975, M.N.R.A.S. 172, 249.Google Scholar
Gurzadyan, G.A., Kashin, A.L., Krmoyan, M.N., and Ohanesyan, J.B. 1974, Astrofizika, 10, 177.Google Scholar
Gurzadyan, G.A., Kashin, A.L., Krmoyan, M.N., Jarakyan, A.L., Loretzyan, G.M., and Ohanesyan, J.B. 1975, Astrophys. Space Sci. 40, 393.Google Scholar
Harrington, J.P. 1968, Ap.J., 152, 943.Google Scholar
Holm, A.V. 1972, Scien. Res. from OAO-2. Ed. Code A. D. p. 229.Google Scholar
Kaler, J.B. 1970, Ap.J. 160, 887.CrossRefGoogle Scholar
Kipper, A. Ya. and Tiit, V.M. 1958, Vop. Kosmogonii 6, 99.Google Scholar
Kirkpatrick, R.C. 1970, Ap.J., 162, 33.Google Scholar
Krueger, T.K., Aller, L.H., Czyzak, S.I. 1970, Ap.J. 160, 921.Google Scholar
Liller, W. and Shao, C. 1968, IAU Symposium No. 34, p. 320.Google Scholar
Mihalas, D. 1965, Ap. J. Suppl. IX, No. 92, 321.Google Scholar
O'Dell, C.R. 1962, Ap.J. 135, 371.Google Scholar
Osterbrock, D.E. 1960, Ap.J. 131, 541.Google Scholar
Seaton, M.L. 1968, IAU Symposium No. 34, p. 129.Google Scholar
Wesselius, P.R., Aalders, J.W.G., Van Borgman, J., Van Duinen, P.J., Koorneef, J., Pottasch, S.R., Vader, J.P. and Wu, C.C. 1975, Proc. Third European Astr. Meeting, Tbilisi, 1–5 July, Ed. Kharadze, E.K., p. 67.Google Scholar