Hostname: page-component-84b7d79bbc-dwq4g Total loading time: 0 Render date: 2024-07-25T10:35:13.472Z Has data issue: false hasContentIssue false
  • English
  • Français

The core and halo structure of the quasar 4C18.68

Published online by Cambridge University Press:  19 July 2016

Ann C. Gower  and
J.B. Hutchings
Ann C. Gower
Affiliation:
University of Victoria and Dominion Astrophysical Observatory, Victoria, B.C., Canada
J.B. Hutchings
Affiliation:
University of Victoria and Dominion Astrophysical Observatory, Victoria, B.C., Canada

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 present new VLA observations of this complex low redshift quasar, which was previously modelled as a precessing twin-jet nucleus. A new 2cm map fails to show the predicted curvature near the nucleus. B and C configuration maps have been obtained, to study the halo of the source. These results suggest that the radio source is not very old, and appears to have undergone two major changes of orientation in its < 107 year history.

Type
II. Continuum Emission
Information
Symposium - International Astronomical Union , Volume 119: Quasars , 1986 , pp. 187 - 188
Copyright
Copyright © Reidel 1986 

References

1. Gower, A.C. and Hutchings, J.B. 1982, Ap. J. 253, L1.CrossRefGoogle Scholar
2. Gower, A.C., Gregory, P.C., Hutchings, J.B., Unruh, W.G. 1982, Ap. J. 262, 478.CrossRefGoogle Scholar
3. Hutchings, J.B. et al 1984 Ap. J. Suppl 55, 319.CrossRefGoogle Scholar
4. Shara, M.M., Moffat, A.F.J., Albrecht, R. 1985 Ap. J. 296, 399.CrossRefGoogle Scholar