PKS 1117+146: a new large compact symmetric object |
| |
| Authors: | M Bondi M A Garrett & L I Gurvits |
| |
| Institution: | Istituto di Radioastronomia, Via Gobetti 101, I-40129, Bologna, Italy,;Nuffield Radio Astronomy Laboratories, Jodrell Bank, Macclesfield, Cheshire SK11 9DL,;Joint Institute for VLBI in Europe, PO Box 2, 7991 PD, Dwingeloo, the Netherlands,;Astro Space Science, P.N. Lebedev Physical Institute, Moscow, 117333, Russia |
| |
| Abstract: | We present 23-GHz MERLIN observations of the high-luminosity radio galaxy PKS 1117+146. The radio image obtained from these data shows, for the first time, a central weak component (designated C) that we identify as the core of the radio galaxy, and two outer components (designated N and S) which are the hotspots of the extended lobes observed at lower frequencies. Extended emission in components C and S is an indication of a possible jet connecting the core to the strongest component. The overall optical and radio properties of PKS 1117+146 are consistent with the source being classified as a compact symmetric object (CSO). We discuss this hypothesis, which would make PKS 1117+146 the largest CSO known so far. |
| |
| Keywords: | galaxies: active galaxies: individual: PKS 1117+146 radio continuum: galaxies |
|
|
