|
If you are seeing this message, you may be experiencing temporary network problems. Please wait a few minutes and refresh the page. If the problem persists, you may wish to report it to your local Network Manager.
It is also possible that your web browser is not configured or not able to display style sheets. In this case, although the visual presentation will be degraded, the site should continue to be functional. We recommend using the latest version of Microsoft or Mozilla web browser to help minimise these problems.
Wiley InterScience | |||
  Monthly Notices of the Royal Astronomical SocietySee Also: Volume 330 Issue 3, Pages 609 - 620 Published Online: 4 Apr 2002 Journal compilation © 2010 RAS A Journal of the Royal Astronomical Society
Abstract | References | Full Text: HTML, PDF (Size: 591K) | Related Articles | Citation Tracking  Jet reorientation in active galactic nuclei: two winged radio galaxies Copyright 2002 Blackwell Science Ltd KEYWORDS ABSTRACTWinged, or X-shaped, radio sources form a small class of morphologically peculiar extragalactic sources. We present multifrequency radio observations of two such sources. We derive maximum ages since any re-injection of fresh particles of 34 and 17 Myr for the wings of 3C 223.1 and 3C 403 respectively, based on the lack of synchrotron and inverse Compton losses. On morphological grounds we favour an explanation in terms of a fast realignment of the jet axis which occurred within a few Myr. There is no evidence for merger activity, and the host galaxies are found to reside in no more than poor cluster environments. A number of puzzling questions remain about those sources: in particular, although the black hole could realign on sufficiently short time-scales, the origin of the realignment is unknown. Accepted 2001 October 25. Received 2001 July 19; in original form 2001 January 22 | 
|
