VLA observations of 3C 295 - A young radio galaxy?

Details VLA observations of 3C 295 - A young radio galaxy? VLA observations of 3C 295 - A young radio galaxy?

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aj....101.1623p&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 101, May 1991, p. 1623-1631.

Astronomy and Astrophysics

Astronomy

130

Astronomical Spectroscopy, Elliptical Galaxies, Radio Galaxies, Very Large Array (Vla), Faraday Effect, Galactic Evolution, Galactic Rotation, Interstellar Magnetic Fields, Luminosity

Scientific paper

VLA observations of the luminous radio galaxy 3C 295 at 2, 3.6, 6, and 20 cm are presented. The combination of its extreme luminosity with small physical size results in a very high energy density and equipartition magnetic field strengths of about 500 microG. The spectrum is unusually steep for a radio galaxy, and shows curvature at all frequencies. In addition, the largest Faraday rotation measures (RMs) yet measured in an extragalactic source, exceeding 20,000 radians/sq m in places, has been found. These RMs are caused by cluster gas and magnetic fields of strength about 30 microG, and are not produced within the source or at its boundary. This is a young radio galaxy, less than 2 million years old.

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