CENTRAL ACTIVITY IN THE BARRED GALAXY NGC-3367

Citation
Ja. Garciabarreto et al., CENTRAL ACTIVITY IN THE BARRED GALAXY NGC-3367, The Astronomical journal (New York), 116(1), 1998, pp. 111-118
Citations number
54
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
00046256
Volume
116
Issue
1
Year of publication
1998
Pages
111 - 118
Database
ISI
SICI code
0004-6256(1998)116:1<111:CAITBG>2.0.ZU;2-I
Abstract
We report the radio continuum structure of the barred galaxy NGC 3367 with an angular resolution of similar to 4.'' 5. The radio structure i ndicates emission from the disk and from a triple source consisting of the nucleus straddled by two extended sources (the lobes). The triple source shows an excess of radio continuum emission compared with the emission expected from the total radio-H alpha correlation, suggesting a nonthermal origin probably related to activity of an active galacti c nucleus (AGN) and not to star formation processes. The triple source is approximately 12 kpc in extent at P.A. approximate to 40 degrees, close to (but not aligned with) that of the stellar bar, P.A. approxim ate to 65 degrees. Only the southwest lobe is polarized, The polarizat ion asymmetry between the two lobes suggests that the triple-source ax is is slightly out of the plane. If the origin of the emission is an o utflow of plasma from an AGN, as seen in weak radio galaxies and NGC 1 068, then NGC 3367 provides an excellent laboratory object to study a possible interaction of the ejected material and the barred galaxy.