4C 02.27: a quasar with episodic activity?
Article first published online: 10 SEP 2009
© 2009 The Authors. Journal compilation © 2009 RAS
Monthly Notices of the Royal Astronomical Society: Letters
Volume 399, Issue 1, pages L141–L145, October 2009
How to Cite
Jamrozy, M., Saikia, D. J. and Konar, C. (2009), 4C 02.27: a quasar with episodic activity?. Monthly Notices of the Royal Astronomical Society: Letters, 399: L141–L145. doi: 10.1111/j.1745-3933.2009.00741.x
- Issue published online: 1 OCT 2009
- Article first published online: 10 SEP 2009
- Accepted 2009 August 10. Received 2009 August 5; in original form 2009 June 26
- galaxies: active;
- galaxies: individual: 4C 02.27;
- galaxies: nuclei;
- radio continuum: galaxies
Striking examples of episodic activity in active galactic nuclei are the double–double radio galaxies (DDRGs) with two pairs of oppositely directed radio lobes from two different cycles of activity. Although there are over about a dozen good examples of DDRGs, so far no case of one associated with a quasar has been reported. We present Giant Metrewave Radio Telescope observations of a candidate double–double radio quasar, J0935+0204 (4C 02.27), and suggest that radio jets in this source may also have been intrinsically asymmetric, contributing to the large observed asymmetries in the flux density and location of both pairs of radio lobes.