학술논문

Extragalactic sources with asymmetric radio structure II. further observations of the quasar B2 1320 + 299
Document Type
Original Paper
Source
Journal of Astrophysics and Astronomy. June 1986 7(2):119-129
Subject
extragalactic radio sources
quasars, radio structure
quasars, linear polarization
Language
English
ISSN
0250-6335
0973-7758
Abstract
We present VLA A-array observations at λ20, 6 and 2 cm and B-array observations at λ20 and 6 cm of the quasar B2 1320 + 299, which has a very unusual radio structure. In addition to a component, A, coincident with the quasar, there are two lobes of radio emission, B and C, on the same side of A. These are located at distances of -25 and 50 arcsec respectively from A. The present observations show that A has a flat-spectrum component coincident with the quasar and a weak outer component at a distance of-4 arcsec along PA - 100°. The morphology of B resembles a head-tail type of structure with its tail towards the north-east. The magnetic field lines in component B appear to follow the bend in the tail. Component C exhibits some extension towards the north-west. We discuss the possible nature of B2 1320 + 299 and suggest that while A appears to be an independent source, the relation between B and C, if they are associated at all, is unclear. Deep optical observations are essential to help clarify the situation.