Optical Variability in Quasars

  • S. Cristiani
Part of the Astrophysics and Space Science Library book series (ASSL, volume 121)


Since the early days, variability represented one of the most important tools for the understanding of the physical processes involved in Active Galactic Nuclei.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Andrew, B. H., Macleod, J. M., Harvey, G. A., Medd, W. J., 1978: Astron. J. 83, 863.ADSCrossRefGoogle Scholar
  2. Barbieri, C., Cristiani, S., Nardon, G., Romano, G., 1983: XXIV Liege Astrophysical Colloquium, p. 443.Google Scholar
  3. Barbieri, C., Cristiani, S., Omizzolo, A., Mardon, G., Romano, G., 1985: Astron. Astrophys. 142, 316.ADSGoogle Scholar
  4. Barbieri, C., Romano, G., di Serego, S., Zambon, M., 1977: Astron. Astrophys. 59, 419.ADSGoogle Scholar
  5. Bonoli, F., Braccesi, A., Federici, L., Zitelli, V., Formiggini, L., 1979: Astron. Astrophys. Suppl. 35, 391.ADSGoogle Scholar
  6. Burbidge, G. R., 1958: Paris Symposium of Radio Astronomy, ed. R. N. Bracewell (Stanford Univ. Press), p. 541.Google Scholar
  7. Cavaliere, A., 1981: Plasma Astrophysics, Course and Workshop held in Varenna, p. 97.Google Scholar
  8. Cohen, M. H., Unwin, S. C., 1982: Extragalactic Radio Sources, IAU Symposium no. 97, p. 345.Google Scholar
  9. Fanti, C., Fanti, R., Mantovani, F., Padrielli, L., Weiler, K. V., 1981: Astron. Astrophys. Suppl. 45, 61.ADSGoogle Scholar
  10. Fanti, R., Salvati, M., 1980: Proc. European Regional Meeting in Astronomy, Variability in Stars and Galaxies, p. C.3.1.Google Scholar
  11. Maraschi, L., Schwartz, D. A., Tanzi, E. G., Treves, A., 1985: Astrophys. J. in press.Google Scholar
  12. Medd, W. J., Andrew, B. H., Harvey, G. A., Locke, J. L., 1972: Mem. R. astr. Soc. 177, 109.ADSGoogle Scholar
  13. Miller, J. S., French, H. B., 1978: Pittsburgh Conference on BL Lac Objects, ed. A. M. Wolfe, p. 228.Google Scholar
  14. Metzer, H., Sheffer, Y., 1983: Mon. Not. R. Astron. Soc. 203, 935.ADSGoogle Scholar
  15. Penston, M. V., Cannon, R. D., 1968: Royal Obs. Bull. 159, 85.Google Scholar
  16. Peterson, B. A., Jauncey, D. L., Wrisht, A. F., Condon, J. J., 1976: Astrophys. J. 207, L5.ADSCrossRefGoogle Scholar
  17. Pica, A. J., Smith, A. G., 1983: Astrophys. J. 272, 11.ADSCrossRefGoogle Scholar
  18. Salpeter, E. E., 1964: Astrophys. J. 140, 796.ADSCrossRefGoogle Scholar
  19. Scheuer, P. A. G., 1984: IAU Symp. no. 110, p. 197.Google Scholar
  20. Schmidt, M., 1963: Nature 197, 1040.ADSCrossRefGoogle Scholar
  21. Seyfert, C. K., 1943: Astrophys. J. 97, 28.ADSCrossRefGoogle Scholar
  22. Stockman, H. S., Angel, R. P., 1978: Astrophys. J. 210, L67.ADSCrossRefGoogle Scholar
  23. Tanzi, E. G., Barr, P., Bouchet, P., Chiappetti, L., Cristiani, S., Danziger, J., Gionni, P., Maraschi, L., Treves, A., Wamsteker, W. in prep.Google Scholar
  24. Wilkes, B. J., Wright, A. E., Jauncey, D. L., Peterson, B. A., 1983: Proc. Astron. Soc. Austr. 5, 2.ADSGoogle Scholar
  25. Zamorani, G., Gionni, P., Maccacaro, T., Tananbaum, H., 1984: Astrophys. J. 278, 28.ADSCrossRefGoogle Scholar
  26. Zeldovich, Y. B., Novikov, I. D., 1964: Dokl. Acad. Nauk. 155, 1033.Google Scholar

Copyright information

© Springer Science+Business Media Dordrecht 1986

Authors and Affiliations

  • S. Cristiani
    • 1
  1. 1.European Southern ObservatoryCasilla, Santiago 19Chile

Personalised recommendations