The core object in Virgo A

Details The core object in Virgo A The core object in Virgo A

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...238...54f&link_type=abstract

Astrophysical Journal, Part 1, vol. 238, May 15, 1980, p. 54-64.

Astronomy and Astrophysics

Astrophysics

12

Astronomical Maps, Galactic Nuclei, Galactic Structure, Radio Galaxies, Astronomical Models, Error Analysis, Interstellar Magnetic Fields, Linear Polarization, Plasma Turbulence

Scientific paper

23 GHz aperture synthesis maps of the core object in Virgo A made with the Hat Creek interferometer are compared with 5 GHz Cambridge maps to obtain distributions of spectral index, depolarization, and rotation angle with a resolution of 6 arc sec x 12 arc sec. A physical model employing a turbulent plasma containing both random and systematic magnetic fields is used to interpret the data. Distributions of spectral index, systematic magnetic field strength and direction, random-to-systematic field ratio, and thermal electron density are derived. Estimates of the average scale size for random magnetic field reversals are also made.

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