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Title: A case for renewed activity in the giant radio galaxy J0116-473
Authors: Saripalli, Lakshmi
Subrahmanyan, Ravi
Udaya Shankar, N.
Keywords: galaxies: individual (J0116-473)
Galaxies: Jets,
Radio Continuum: Galaxies
Issue Date: 20-Jan-2002
Publisher: The University of Chicago Press for the American Astronomical Society
Citation: Astrophysical Journal, 2002, Vol.565, p256-264
Abstract: We present Australia Telescope Compact Array (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 hot spots 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 renewed nuclear activity: J0116-473 appears to be a striking example of a radio galaxy in which a young double source is evolving within older lobe material. We also report the detection of a megaparsec-long linear feature that is oriented perpendicular to the radio axis and has a high fractional polarization.
ISSN: 0004-637X
Alternative Location:
Copyright: (2002) by the American Astronomical Society.
Appears in Collections:Research Papers (A&A)

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