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Wednesday, 03 March 2021 08:06

Radio Observations of the Giant Radio Source NGC 315

Radio Observations of the Giant Radio Source NGC 315

NGC 315 is a Fanaroff–Riley type I (FR I) radio galaxy located in a galaxy cluster in Pisces' constellation. It has an angular size of 0.967 degrees and a linear size of about 1.1 Mpc, making it a Giant Radio Source (GRS). The galaxy itself has a very rare Z-shaped structure, observed in 1976 by Bridle et al.

NGC 315 is associated with a giant elliptical galaxy with two jets on either side (R. Chen et al. 2012). A bright main jet and a short, diffused counterjet were detected by the VLBI (Venturi et al. 1993). The NGC 315 galaxy group consists of about 60 published galaxies with known redshifts, 40 percent of which are concentrated near the NGC 315 radio galaxy. 

 

At SAASST, we report a radio image of the bright galaxy NGC 315 at 1.4 GHz using the Sharjah 5-m radio telescope. The radio map below shows parts of the Z – shaped galaxy, highlighted with contour lines.  This observation was made as a part of our survey of Giant Radio Sources (GRS).

 

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