NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-19 T02:07:08 PDT
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For refcode 1991AJ....101.1623P:
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Copyright by American Astronomical Society. Reproduced by permission
1991AJ....101.1623P VLA OBSERVATIONS OF 3C 295 - A YOUNG RADIO GALAXY? R. A. PERLEY National Radio Astronomy Observatory, Socorro, New Mexico 878011 G. B. TAYLOR National Radio Astronomy Observatory, Socorro, New Mexico 878011 and University of California, Los Angeles, California 90024 Received 24 October 1990; revised 20 December 1990 ABSTRACT We present VLA observations of the luminous radio galaxy 3C 295 at 2, 3.6, 6, and 20 cm. The combination of its extreme luminosity with small physical size results in a very high energy density and equipartition magnetic field strengths of ~500 {mu}G. The spectrum is unusually steep for a radio galaxy, and shows curvature at all frequencies. In addition, we find the largest Faraday rotation measures (RMs) yet measured in an extragalactic source, exceeding 20,000 radians m^-2^ in places. We believe these RMs are caused by cluster gas and magnetic fields of strength ~30{mu}G, and are not produced within the source or at its boundary. We suggest that this is a young radio galaxy, less than 2 million years old.
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