B2 1637+29, a massive radio galaxy probing a poor but gas-rich group

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/166372· OSTI ID:7137702

De Ruiter, H R; Parma, P; Fanti, R; Ekers, R D

New VLA and CCD observations of the radio source B2 1637+29, a member of the faint B2 sample of low-luminosity radio galaxies, are reported. The environment of the galaxy is discussed, and a description of the radio source morphology is given. The CCD image reveals that the optical counterpart is a double galaxy with radio jets emanating from the nucleus of the brighter of the two galaxies. It is shown that the galaxy is the dominant member of a poor group of galaxies, and it is argued that it moves with an average velocity of a few hundred km/s with respect to an intergalactic gas cloud with mass of 10 to the 13th solar or more. The relevance of the enviroment of the radio galaxy to the source morphology is discussed, and an explanation for the highly peculiar features, such as the undulation in the radio tail and the difference in both length and brightness of the main and counter jet, is proposed. 32 references.

• Research Organization: CNR, Istituto di Radioastronomia, Bologna (Italy); National Radio Astronomy Observatory, Socorro, NM (USA)
• OSTI ID: 7137702
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 329; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GASES
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
FLUIDS
GALAXIES
GALAXY CLUSTERS
GALAXY NUCLEI
GASES
IMAGES
INTERGALACTIC SPACE
INTERSTELLAR SPACE
MASS
MORPHOLOGY
PLASMA JETS
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
SPACE