Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-26T17:56:51.319Z Has data issue: false hasContentIssue false
  • English
  • Français

Emission Components in Seyfert Galaxies and Quasars

Published online by Cambridge University Press:  19 July 2016

Thierry J.-L. Courvoisier
Thierry J.-L. Courvoisier*
Affiliation:
Observatoire de Genève CH-1290 Sauverny Switzerland

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.

The continuum emission components of Seyfert galaxies and quasars are reviewed with a particular emphasis on the correlations observed between these components. It is shown that the blue bump emission which is observed in Seyfert galaxies and quasars and not in BL Lac type objects is not hidden in the latter objects by a strong beaming of the jet emission. The shape of the blue bump is described and some consequences of these observations for the interpretation of this component are given. The relationship between the X-ray emission of quasars and the radio beaming properties of the object should be re-visited when the shape of the soft excess emission can be better established.

Type
Correlations between Emission Components
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 203 - 212
Copyright
Copyright © Kluwer 1994 

References

Antonucci, R. and Miller, J., 1985, Ap. J. 297, 621 Google Scholar
Barvainis, R. 1994, this volume Google Scholar
Browne, I.W.A. and Jackson, N., 1992, in Physics of Active Galactic Nuclei, Eds Duschl, W.J. and Wagner, S.J. Springer, p. 618 Google Scholar
Bühler, P., Courvoisier, T.J.-L. and Staubert, R., 1994, submitted Google Scholar
Courvoisier, T.J.-L., 1992, in Variability of Blazars, Eds Valtaoja, E. and Valtonen, M., p. 399 Google Scholar
Courvoisier, T.J.-L. et al., 1990, A&A 234, 73 Google Scholar
Courvoisier, T.J.-L. and Clavel, J., 1991, A&A 248, 389.Google Scholar
Courvoisier, T.J.-L. and Paltani, S., 1992, ESA SP 1153 volumes A and BGoogle Scholar
Ghisellini, G., Padovani, P., Celotti, A. and Maraschi, L., 1993, Ap. J. in press Google Scholar
Jackson, N., Browne, I.W.A. and Warwick, R.S., 1993, A+A 274, 79 Google Scholar
Mewe, R. et al., 1986, A&A Suppl. Ser. 65, 511 Google Scholar
Orr, A. et al., 1994, this volume Google Scholar
Paltani, S. and Courvoisier, T.J.-L., 1994, this volume.Google Scholar
Paltani, S., Courvoisier, T.J.-L., Bouchet, P., Robson, E.I., Staubert, R., Tornikoski, M., Ulrich, M.-H., Valtaoja, E. and Wamsteker, W., 1993, in “The multi wavelength approach to gamma ray astronomy”, submitted to Ap. J. Supp.Google Scholar
Pounds, K.A., Nandra, K. and Stewart, G.C., 1992, in Physics of Active Galactic Nuclei, Eds Duschl, W.J. and Wagner, S.J. Springer, p. 32 Google Scholar
Shields, G.A., 1978, Nature 272, 706 Google Scholar
Tornikoski, M. et al., 1994, this volume Google Scholar
Véron-Cetty, M.-P. and Véron, P., 1991, ESO Scientific Report No. 10 Google Scholar
Walter, R. and Fink, H.H., 1993, A+A 274, 105 Google Scholar
Walter, R., Orr, A., Courvoisier, T.J.-L., Fink, H.H., Makino, F., Otani, C., and Wamsteker, W., 1994, submitted.Google Scholar
Woltjer, L., 1990, in Active Galactic Nuclei, Eds Courvoisier, T.J.-L. and Mayor, M. Springer p. 1.Google Scholar
Zensus, A.J., Unwin, S.C., Cohen, M.H. and Biretta, J.A., 1990, Astron. J. 100, 1777 Tsvetanov, Z. et al., 1994, this volume Google Scholar