Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...141..189d&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 141, no. 1, Dec. 1984, p. 189-194.
Astronomy and Astrophysics
Astrophysics
9
Angular Distribution, Galactic Nuclei, Galactic Structure, Luminosity, Radio Galaxies, Spectral Correlation, Astronomical Spectroscopy, Cosmic Dust, Distortion, Interstellar Gas, Spectral Resolution
Scientific paper
Two samples of low luminosity B2 radio galaxies have been observed with the VLA at 20 cm. The angular resolution (about 3.5 arcsec) allows the study of distortions of the radio structure well inside the galaxy. The distortion angle χ5 at 5 kpc from the nucleus correlates with both the linear size D and radio power P, but the correlation with P is found to be only apparent, because also D and P are correlated with each other: the correlation between χ5 and D is the fundamental one. Small radio sources are highly distorted at 5 kpc from the nucleus; larger sources are usually very straight inside the parent galaxy. Appreciable distortions occur if the radio source has a size D<35kpc and are correlated with D as χ5αD-1. A possible explanation for the correlation involving interstellar gas/dust clouds is briefly discussed.
de Ruiter Hans R.
Parma Paola
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