The radio galaxy IC 4296 (PKS 1333 - 33). I - Multifrequency Very Large Array observations

Abstract

The authors present VLA observations of the E1 radio galaxy IC 4296 (PKS 1333-33) at 1.3, 2, 6, and 20 cm, with a best resolution of 3arcsec.2. The source consists of an unresolved core (coincident with the nucleus of IC 4296) from which issue two symmetric, curved jets. Both jets terminate in slightly edge-brightened lobes. The total extent of the source is approximately 35arcmin (360 kpc, for H<SUB>0</SUB> = 100 km s<SUP>-1</SUP> Mpc<SUP>-1</SUP>). Physical characteristics of the jets are derived from the total intensity maps, from spectral index variations and from radio polarization maps. Equipartition parameters are then calculated from these data.