3C 274.1


Basic Data
S178 Alpha FR Class ID Spectrum Best z mag. LAS lg P178 D
18.00.87IIR?+HB Gal0.422R(c) = 19.5* 164.7026.74 724.6


Size: 256.0 × 256.0 arcsec²
LUT: Logarithmic
Beam: 4.5 arcsec
Frequency: 1652 MHz
Method: CLEAN ՘>4.5
Telescope: VLA B+C
Credits: Leahy, Pooley & Riley (1986)

The HST image of the host galaxy (de Koff et al. 1996) shows distorted isophotes, suggesting a possible dust lane. (The galaxy location is marked in our picture by a small red cross). Yates, Miller & Peacock (1989) give a larger-scale optical image which shows a number of companion galaxies, although, contrary to a note by de Koff et al, the local galaxy density is probably not high enough to qualify as a cluster. Consistent with this, there is no sign of Faraday rotation from any intra-cluster gas (Leahy et al. 1986).

This giant radio galaxy has been classified as R?+HB because the peak at the end of the south-western lobe appears to be too large to count as a genuine hotspot, thus the SW lobe is apparently relaxed. However, it is possible that a higher-resolution image would reveal a marginal hotspot (hence the question mark).

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Page created: 2009 Apr 2 14:16:43
J. P. Leahy