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A Case for Renewed Activity in the Giant Radio Galaxy J0116-473 | | Lakshmi Saripalli
; Ravi Subrahmanyan
; N. Udaya Shankar
; | | Date: |
27 Sep 2002 | | Journal: | Astrophys.J. 565 (2002) 256 | | Subject: | astro-ph | | Affiliation: | Australia Telescope National Facility, CSIRO, Australia, Raman Research Institute, India | | Abstract: | We present ATCA radio observations of the giant radio galaxy J0116-473 at 12 and 22 cm wavelengths in total intensity and polarization. The images clearly reveal a bright inner-double structure within more extended edge-brightened lobe emission. The lack of hotspots at the ends of the outer lobes, the strong core and the inner-double structure with its edge-brightened morphology lead us to suggest that this giant radio galaxy is undergoing a renewed nuclear activity: J0116-473 appears to be a striking example of a radio galaxy where a young double source is evolving within older lobe material. We also report the detection of a Mpc-long linear feature which is oriented perpendicular to the radio axis and has a high fractional polarization. | | Source: | arXiv, astro-ph/0209570 | | Services: | Forum | Review | PDF | Favorites | |
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