Hostname: page-component-6bf8c574d5-t27h7 Total loading time: 0 Render date: 2025-02-17T19:02:16.718Z Has data issue: false hasContentIssue false
  • English
  • Français

Extreme Quasars: Observations and Constraints

Published online by Cambridge University Press:  19 July 2016

Martin Elvis
Martin Elvis*
Affiliation:
Harvard-Smithsonian Center for Astrophysics, Cambridge MA 02138 USA

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 range of continuum shape the quasar phenomenon covers is larger than is usually thought, and is limited by observational sensitivity, between 1/3 and 1/2 of all quasars are “extreme” in at least one band. We have embarked on a program of observations to explore extreme spectral shapes, and to push to high redshift/luminosity. This paper presents X-ray and multi-wavelength SEDs for 12 z∼3 quasars.

Type
Multi-wavelength Continuum Emission of AGN
Information
Symposium - International Astronomical Union , Volume 159: Multi-Wavelength Continuum Emission of AGN , 1994 , pp. 25 - 28
Copyright
Copyright © Kluwer 1994 

References

Bechtold, J., et al., 1994, Ap. J., submitted.Google Scholar
Boyle, B., Fong, R., and Shanks, T., 1987, MNRAS, 227, 717.CrossRefGoogle Scholar
Brissenden, R.J.V., 1989, PhD Thesis, Australian National University.Google Scholar
Elvis, M. et al., 1994, Ap. J. Suppl., submitted.Google Scholar
Elvis, M. and Brissenden, R.J.V. 1994, Ap. J., in preparation Google Scholar
Elvis, M., et al., 1986, Ap. J., 310, 291.CrossRefGoogle Scholar
Haehnalt, M.G. and Rees, M.J., 1993, MNRAS, 263, 168.CrossRefGoogle Scholar
Kuhn, O., Bechtold, J., Cutri, R., and Elvis, M., 1994, Ap. J. Letters, submitted.Google Scholar
Neugebauer, G., et al., 1987, Ap. J. Suppl., 63, 615.CrossRefGoogle Scholar
Malkan, M.A., and Sargent, W.L.W., 1982, Ap. J., 254, 22.CrossRefGoogle Scholar
Sanders, D., et al 1989, Ap. J., 347, 29.CrossRefGoogle Scholar
Turner, E.L., 1991, A.J., 101, 5.CrossRefGoogle Scholar
Wilkes, B.J. and Elvis, M., 1987, Ap. J., 323, 243.CrossRefGoogle Scholar
Williams, O.R., et al, 1992, Ap. J., 389, 157.CrossRefGoogle Scholar