Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-26T18:50:49.139Z Has data issue: false hasContentIssue false
  • English
  • Français

Planetary Nebulae and Seyfert Galaxies - Similarities and Differences

Published online by Cambridge University Press:  18 September 2017

Donald E. Osterbrock
Donald E. Osterbrock*
Affiliation:
Lick Observatory, Board of Studies in Astronomy and Astrophysics, University of California, Santa Cruz

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.

Knowledge gained in the study of planetary nebulae has been, and can be further, transferred to understanding active galactic nuclei. Photoionization is the main energy-input mechanism in the narrow-line regions, and probably although by no means certainly in the broad-line regions as well. There are many detailed differences because of the much “harder” input spectrum in active galactic nuclei, compared with planetary nebulae. A tentative model of the structure of the gas distribution in a Seyfert-galaxy nucleus is presented.

Type
Section VI: Planetary Nebulae in a Galactic and Extragalactic Context
Information
Symposium - International Astronomical Union , Volume 103: Planetary Nebulae , 1983 , pp. 473 - 486
Copyright
Copyright © Reidel 1983 

References

Abell, G. O., Eastmond, T. S. and Jenner, D. C.: 1978, Ap. J. 221, L1.CrossRefGoogle Scholar
Angel, J. R. P., Stockman, H. S., Woolf, N. J., Beaver, E. A. and Martin, P. G.: 1976, Ap. J. 206, L5.CrossRefGoogle Scholar
Baade, W. and Minkowski, R.: 1954, Ap. J. 119, 206.CrossRefGoogle Scholar
Baldwin, J. A.: 1977, M.N.R.A.S. 178, 67P.CrossRefGoogle Scholar
Blumenthal, G. R. and Mathews, W. G.: 1975, Ap. J. 198, 517.CrossRefGoogle Scholar
Capriotti, E., Foltz, C. and Byard, P.: 1979, Ap. J., 230, 681.CrossRefGoogle Scholar
Cohen, R. D.: 1981, .Google Scholar
Cohen, R. D. and Osterbrock, D. E.: 1981, Ap. J. 243, 81.CrossRefGoogle Scholar
Collin-Souffrin, S.: 1978, Physica Scripta 17, 293.CrossRefGoogle Scholar
Collin-Souffrin, S., Dumont, S., Heidmann, N and Joly, M.: 1980, A.A. 83, 190.Google Scholar
Collin-Souffrin, S., Dumont, S. and Tully, J.: 1982, A.A. 106, 362.Google Scholar
Collin-Souffrin, S., Joly, M., Heidmann, N. and Dumont, S.: 1979, A.A. 72, 293.Google Scholar
Costero, R. and Osterbrock, D. E.: 1977, Ap. J. 211, 675.CrossRefGoogle Scholar
Culhane, J. L.: 1978, Q.J.R.A.S. 19, 1.Google Scholar
Davidson, K. and Netzer, H.: 1979, Rev. Mod. Phys. 51, 715.CrossRefGoogle Scholar
Feldman, F. R., Weedman, D. W., Balzano, V. A. and Ramsey, L. W.: 1982, Ap. J. 256, 429.CrossRefGoogle Scholar
Gaskell, C. M., Shields, G. A. and Wampler, E. J.: 1981, Ap. J. 249, 443.CrossRefGoogle Scholar
Grandi, S. A.: 1978, Ap. J. 221, 501.CrossRefGoogle Scholar
Grandi, S. A.: 1981, Ap. J. 251, 451.CrossRefGoogle Scholar
Grandi, S. A. and Osterbrock, D. E.: 1978, Ap. J. 220, 783.CrossRefGoogle Scholar
Heckman, T. M.: 1980, A.A. 87, 152.Google Scholar
Heckman, T. M. and Balick, B.: 1979, A.A. 79, 350.Google Scholar
Heckman, T. M., Miley, G. K., van Bruegel, W. J. M. and Butcher, H. R.: 1981, Ap. J. 247, 403.CrossRefGoogle Scholar
Hubble, E. P.: 1926, Ap. J. 64, 321.CrossRefGoogle Scholar
Keel, W. C.: 1982, .Google Scholar
Khachikian, E. Ye and Weedman, D. W.: 1974, Ap. J. 192, 581.CrossRefGoogle Scholar
Koski, A. T.: 1978, Ap. J. 223, 56.CrossRefGoogle Scholar
Lawrence, A. and Elvis, M.: 1982, Ap. J. 256, 410.CrossRefGoogle Scholar
Malkan, M. A.: 1982, Ap. J. in press.Google Scholar
Miley, G.: 1980, Ann. Rev. Ast. Ap. 18, 165.CrossRefGoogle Scholar
Maccacaro, T., Perola, G. C. and Elvis, M.: 1982, Ap. J. 257, 47.CrossRefGoogle Scholar
Mitton, S. and Mitton, J.: 1972, M.N.R.A.S. 158, 245.CrossRefGoogle Scholar
Mushotzky, R. F.: 1982, Ap. J. 256, 92.CrossRefGoogle Scholar
Netzer, H.: 1975, M.N.R.A.S. 171, 395.CrossRefGoogle Scholar
Osterbrock, D. E.: 1977, Ap. J. 215, 733.CrossRefGoogle Scholar
Osterbrock, D. E.: 1978, Proc. Nat. Acad. Sci. 75, 540.CrossRefGoogle Scholar
Osterbrock, D. E.: 1979, A. J. 84, 901.CrossRefGoogle Scholar
Osterbrock, D. E.: 1981a, Ap. J. 246, 696.CrossRefGoogle Scholar
Osterbrock, D. E.: 1981b, Ap. J. 249, 42.CrossRefGoogle Scholar
Osterbrock, D. E.: 1982, P.A.S.P., submitted.Google Scholar
Osterbrock, D. E. and Koski, A. T.: 1976, M.N.R.A.S. 1976, 61P.CrossRefGoogle Scholar
Osterbrock, D. E., Koski, A. T. and Phillips, M. M.: 1975, Ap. J. 197, L41.CrossRefGoogle Scholar
Osterbrock, D. E., Koski, A. T. and Phillips, M. M.: 1976, Ap. J. 206, 898.CrossRefGoogle Scholar
Osterbrock, D. E. and Miller, J. S.: 1975, Ap. J. 197, 535.CrossRefGoogle Scholar
Osterbrock, D. E. and Shuder, J. M.: 1982, Ap. J. Supp. 49, 149.CrossRefGoogle Scholar
Phillips, M. M.: 1977, Ap. J. 215, 746.CrossRefGoogle Scholar
Phillips, M. M.: 1978a, Ap. J. Supp. 38, 187.CrossRefGoogle Scholar
Phillips, M. M.: 1978b, Ap. J. 226, 736.CrossRefGoogle Scholar
Raine, D. J. and Smith, A.: 1981, M.N.R.A.S. 197, 339.CrossRefGoogle Scholar
Schmidt, G. D. and Miller, J. S.: 1980, Ap. J. 240, 750.CrossRefGoogle Scholar
Searle, L. and Sargent, W. L. W.: 1968, Ap. J. 153, 1003.CrossRefGoogle Scholar
Seyfert, C. K.: 1943, Ap. J. 97, 23.CrossRefGoogle Scholar
Shields, G. A.: 1975, Ap. J. 195, 475.CrossRefGoogle Scholar
Shields, G. A.: 1977, Ap. Letters, 18, 119.Google Scholar
Shuder, J. M.: 1980, Ap. J. 240, 32.CrossRefGoogle Scholar
Shuder, J. M.: 1981, Ap. J. 244, 12.CrossRefGoogle Scholar
Shuder, J. M. and Osterbrock, D. E.: 1981, Ap. J. 250, 55.CrossRefGoogle Scholar
Soifer, B. T., Neugebauer, G., Oke, J. B. and Matthews, K.: 1981, Ap. J. 243, 369.CrossRefGoogle Scholar
Tohline, J.E. and Osterbrock, D. E.: 1982, Ap. J. 252, L49.CrossRefGoogle Scholar
Ulvestad, J. J., Wilson, A. S. and Sramek, R. A.: 1981, Ap. J. 247, 419.CrossRefGoogle Scholar
Veron, P., Lindblad, P. O., Zuiderwijk, E. J., Veron, M. P. and Adam, G.: 1980, A.A. 87, 245.Google Scholar
Weedman, D. W., Feldman, R. F., Balzano, V. A., Ramsey, L. W., Sramek, R. A. and Wu, C. C.: 1981, Ap. J. 248, 105.CrossRefGoogle Scholar
Weedman, D. W.: 1977, Ann. Rev. Astron. Astrophys. 15, 69.CrossRefGoogle Scholar
Wilson, A. S.: 1979, Q.J.R.A.S. 19, 1.Google Scholar
Wilson, A. S. and Willis, A. G.: 1980, Ap. J. 240, 429.CrossRefGoogle Scholar
Wilson, O. C.: 1948, Ap. J. 108, 201.CrossRefGoogle Scholar
Wills, B. J., Netzer, H. and Wills, D.: 1980, Ap. J. 242, L1.CrossRefGoogle Scholar
Woltjer, L.: 1958, B.A.N. 14, 39.Google Scholar
Wu, C. C., Boggess, A. and Gull, T. R.: 1980, Ap. J. 242, 14.CrossRefGoogle Scholar
Wu, C. C., Boggess, A. and Gull, T. R.: 1982, Ap. J. in press.Google Scholar
Yee, H. K. C.: 1980, Ap. J. 241, 894.CrossRefGoogle Scholar
Yee, H. K. C. and Oke, J. B.: 1978, Ap. J. 226, 753.CrossRefGoogle Scholar