Two-frequency high resolution observations of 3C 382 and 3C 386

Details Two-frequency high resolution observations of 3C 382 and 3C 386 Two-frequency high resolution observations of 3C 382 and 3C 386

Aug 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....68..367s&link_type=abstract

Astronomy and Astrophysics, vol. 68, no. 3, Aug. 1978, p. 367-379.

Astronomy and Astrophysics

Astrophysics

36

Astronomical Maps, Galactic Rotation, Linear Polarization, Radio Galaxies, Galactic Radiation, Graphs (Charts), Magnetic Field Configurations, Radiant Flux Density

Scientific paper

Aperture-synthesis maps of the radio galaxies 3C 382 and 3C 386 have been made at wavelengths of 21 cm and 6 cm. The observations show that each source has double structure on a scale of 3 arcmin and a compact central component which coincides with the optical galaxy. There is evidence that the flux density of the central component of 3C 382 changed by 25% before 1974, and it is suggested that the galaxy may be associated with the X-ray source 4U 1825+33. Both 3C 382 and 3C 386 exhibit strong linear polarization at the two wavelengths, and this has been used to derive the distributions of rotation measure, depolarization, and magnetic-field direction. These and other parameters are discussed in terms of physical processes and the source environment.

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