VLA observations of 3C 295 - A young radio galaxy

Journal Article · Wed May 01 04:00:00 EDT 1991 · Astronomical Journal; (United States)

DOI:https://doi.org/10.1086/115792· OSTI ID:5587638

Perley, R A; Taylor, G B ^[1]

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1. National Radio Astronomy Observatory, Socorro, NM (USA) California, University, Los Angeles (USA)

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. 33 refs.

• OSTI ID: 5587638
• Journal Information: Astronomical Journal; (United States), Journal Name: Astronomical Journal; (United States) Vol. 101; ISSN 0004-6256; ISSN ANJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AGE ESTIMATION
CONFIGURATION
COSMIC RADIO SOURCES
ELECTROMAGNETIC RADIATION
ELLIPTICAL CONFIGURATION
FARADAY EFFECT
GALACTIC EVOLUTION
GALAXIES
INTERSTELLAR MAGNETIC FIELDS
LUMINOSITY
MAGNETIC FIELDS
MOTION
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
RADIO GALAXIES
RADIOWAVE RADIATION
ROTATION
SIZE
SPECTROSCOPY