4C 35.40


Basic Data
S178 Alpha FR Class ID Spectrum Best z mag. LAS lg P178 D
11.70.76IWP+HP Gal0.0301B = 14.9* 890.0024.21 492.9


Size: 1536.0 × 1536.0 arcsec²
LUT: Logarithmic
Beam: 13.2 arcsec
Frequency: 1442 MHz
Method: CLEAN ՘>13.2
Telescope: VLA CS
Credits: Chris Yates / this Atlas

Identified with the elliptical galaxy NGC 6109 in the double cluster Zw 1615.8+3505. The extended source at the bottom of our image is NGC 6107, the central galaxy in the other clump of the cluster. X-ray emission from the cluster has been mapped by Feretti et al. (1995).

At higher resolution (O'Dea & Owen 1985) a well collimated jet points along the tail, while there is a discrete blob on the opposite side of the core. In our image all these structure form the elongated peak at the south end of the source. The situation is very similar to that in the head of 4C11.71. The most likely explanation is that the galaxy is travelling through the cluster roughly in the direction of one of the jets, which is stalled to create the upstream blob, while the other jet survives as it flows downstream.

Note that several unrelated background sources are seen through the extended radio tail. Also, the noise is worse in the corners of this image because of the fall-off of sensitivity at the edges of the VLA primary beam.

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