Radio structures of Seyfert galaxies. IV. Jets (. ) in NGC 1068 and NGC 4151

Journal Article · Wed Dec 15 04:00:00 EST 1982 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/160529· OSTI ID:5988307

Wilson, A S; Ulvestad, J S

This paper presents and discusses new radio maps of the Seyfert galaxies NGC 1068 (at 1.4 and 15 GHz) and NGC 4151 (at 15 GHz) from the Very Large Array. The radio emission of NGC 1068 comprises a central component coincident with the optical nucleus and of size 0''.7 x 0''.3 in p.a. 28/sup 0/, a linear structure of extent 13'' in p.a. 33/sup 0/, and large scale emission of size at least 2'. The size and shape of the central component are very similar to those of the resolved optical nucleus, and the linear radio structure is probably related to optical ''flares'' and ''prominences'' which extend from the nucleus in the same direction. Linear polarization of magnitude 13% is detected at 15 GHz in the NE lobe of the linear structure. If Faraday rotation is small, the magnetic field is aligned along the radio source axis. Earlier radio maps of NGC 4151 show a highly elongated source of extent approx.3''.5 in p.a. 77/sup 0/. In the center of this structure is found a double source of separation 0''.45 in p.a. 83/sup 0/. The present observations resolve each component of this double and indicate that the more intense component has a flatter spectrum and is probably associated with the nucleus proper.

• Research Organization: Astronomy Program, University of Maryland
• OSTI ID: 5988307
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 263:2; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUID FLOW
FLUIDS
GALAXIES
GALAXY NUCLEI
GASES
INTERSTELLAR SPACE
JETS
MAPS
MORPHOLOGY
POLARIZATION
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
SEYFERT GALAXIES
SPACE
SUPERNOVA REMNANTS