High-resolution observations of the nucleus of 3C 390.3

Details High-resolution observations of the nucleus of 3C 390.3 High-resolution observations of the nucleus of 3C 390.3

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...240l...7p&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 240, Aug. 15, 1980, p. L7-L10.

Astronomy and Astrophysics

Astronomy

13

Galactic Nuclei, High Resolution, Radio Galaxies, Very Long Base Interferometry, Astronomical Maps, Brightness Temperature, Radio Astronomy, Radio Spectra, Spectral Resolution

Scientific paper

The nucleus of the radio galaxy 3C 390.3 (z equals 0.0569) has been observed with a three-element VLB interferometer system at 5 GHz (6 cm). The radio core appears to be an asymmetric core-jet oriented in position angle 143 deg + or - 5 deg, which is the same as the axis of the 300 kpc double source. About 40% of the flux of the core at 6 cm comes from an unresolved component with diameter of not greater than 0.4 milli-arcsec, or 0.6 pc. Comparison of the data from two epochs indicates that there is structural variability on the pc scale, but any relative apparent motion is with a velocity of less than 0.5 c

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