Hostname: page-component-68945f75b7-z7ghp Total loading time: 0 Render date: 2024-08-05T13:45:01.219Z Has data issue: false hasContentIssue false

A Study of the Optical Long-Term Behaviour of Quasars

Published online by Cambridge University Press:  26 July 2016

H. Meusinger
Affiliation:
Thüringer Landessternwarte, Karl-Schwarzschild-Observatorium, D-07778 Tautenburg, Germany
S. Klose
Affiliation:
Thüringer Landessternwarte, Karl-Schwarzschild-Observatorium, D-07778 Tautenburg, Germany
R. Ziener
Affiliation:
Thüringer Landessternwarte, Karl-Schwarzschild-Observatorium, D-07778 Tautenburg, Germany

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.

We report first results of a photometric investigation of the optical long-term behaviour of a sample of quasars. Our study is based on the plate archive of the Tautenburg 134 cm Schmidt telescope which covers a time baseline of over 30 years.

Type
Part Fifteen: Properties and Clustering of Objects at Large Redshifts
Copyright
Copyright © Kluwer 1994 

References

Cimatti, A., Zamorani, G. and Marano, B., 1991. In Proc ‘X-ray emission from active galactic nuclei and the cosmic X-ray background’, eds. Brinkmann, W. and Tümper, J., Garching, FRG.Google Scholar
Evans, N.J. II and Natta, A., 1989. Astrophys. J., 339, 943.CrossRefGoogle Scholar
Fanti, C. et al., 1975. Astron. Astrophys. Suppl. Ser., 19, 143.Google Scholar
Hawkins, M.R.S. and Véron, P., 1993. Mon. Not. R. astron. Soc., 260, 202.CrossRefGoogle Scholar
Johnson, H.L. and Sandage, A., 1956. Astrophys. J., 124, 379.CrossRefGoogle Scholar
Mullikin, T.L. and Miller, H.R., 1977., Publ. Astron. Soc. Pacific, 89, 639.CrossRefGoogle Scholar
Simonetti, J.H., Cordes, J.M. and Heeschen, D.S., 1985. Astrophys. J., 296, 46.CrossRefGoogle Scholar
Zheng, W., Burbidge, E.M. and Smith, H.E., 1990. Publ. Astron. Soc. Pacific, 102, 497.CrossRefGoogle Scholar