Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...191...21f&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 191, no. 1, Feb. 1988, p. 21-28. Research supported by the Ministero della Pub
Astronomy and Astrophysics
Astronomy
5
Astronomical Maps, Elliptical Galaxies, Galactic Clusters, Polarization Characteristics, Radio Galaxies, Calibrating, Hubble Constant, Radio Sources (Astronomy), Spiral Galaxies
Scientific paper
VLA observations are presented for the radio source associated with NGC 6047, one of the brightest elliptical galaxies in the center of Hercules cluster A 2151. This galaxy is optically peculiar. The radio morphology consists of a compact core, two symmetric jets and low brightness lobes. The radio structure is imbedded within the optical galaxy. The polarization data suggest the existence of a foreground depolarizing medium (which could be the interstellar medium), with irregularities on the kpc scale. The jets are likely to be confined by the galactic atmosphere, which follows the profile of a King (1966) model with core radius of about 2.1 arcsec. The low brightness features are likely to be shaped by a jet precession coupled with a motion of the galaxy in a direction almost parallel to the source major axis.
Feretti Luigina
Giovannini Gabriele
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