A counter-jet in the Quasar 1049+616?

Abstract

Multi-frequency and high fidelity radio observations of the quasar 1049 + 616 have been made in the frequency range 1.3 - 8.4 Ghz with the NRAO'S VLA and Jodrell Bank's MERLIN. Our new images reveal a prominent knotty jet and a possible counter-jet with an identifiable knot. The jet-to-counter-jet brightness ratio is ~ 39. In the context of the relativistic beaming hypothesis, this implies a value of bcosq ~ 0.62, which is consistent with its degree of core prominence.

Keywords:Quasars, jets, counter-jets.

Nigerian Journal of Physics Vol. 18 (2) 2006: pp. 181-190