Hostname: page-component-745bb68f8f-5r2nc Total loading time: 0 Render date: 2025-01-13T07:38:14.206Z Has data issue: false hasContentIssue false
  • English
  • Français

Composite Optical Spectra of Radio Quasars

Published online by Cambridge University Press:  25 May 2016

Joanne C. Baker  and
Richard W. Hunstead
Joanne C. Baker
Affiliation:
Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Rd, Cambridge CB3 0HE, UK Department of Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia
Richard W. Hunstead
Affiliation:
Mullard Radio Astronomy Observatory, Cavendish Laboratory, Madingley Rd, Cambridge CB3 0HE, UK Department of Astrophysics, School of Physics, University of Sydney, NSW 2006, Australia

Extract

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.

Primarily to illustrate the effects of orientation on the optical properties of radio-loud quasars, we have created a set of composite optical spectra (see also Baker & Hunstead 1995). Optical spectra drawn from the 408-MHz Molonglo Quasar Sample (MQS) have been coadded in four sets according to R, the ratio of radio core-to-lobe flux, which is used as an orientation indicator (eg. Orr & Browne 1982). Compact steep-spectrum (CSS) quasars (see review by Fanti, this volume) have been combined separately, revealing for the first time many distinguishing features in their average spectra.

Type
Unification Issues
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 405 - 406
Copyright
Copyright © Kluwer 1996 

References

1. Antonucci, R.R.J. (1993), ARAA , 31, 473 Google Scholar
2. Baker, J.C. and Hunstead, R.W. (1995), ApJL , 452, L95 Google Scholar
3. Orr, M. and Browne, I.W.A. (1982), MNRAS , 200, 1067 CrossRefGoogle Scholar