3C 279 - The case for 'superluminal' expansion

Details 3C 279 - The case for 'superluminal' expansion 3C 279 - The case for 'superluminal' expansion

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...229l.115c&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 229, May 1, 1979, p. L115-L117.

Astronomy and Astrophysics

Astronomy

54

Brightness Temperature, Expansion, Extraterrestrial Radiation, Interferometry, Radio Sources (Astronomy), Variable Stars, Diffraction Patterns, Flux Density

Scientific paper

The compact extragalactic radio source 3C 279 was observed with the Haystack-Goldstone interferometer (wavelength approximately 3.8 cm) during six separate sessions spread between October 1970 and April 1972. The fringe amplitudes from each of these observation sessions were consistent with a two-component model of the brightness distribution of the source. The position angle of the line joining the components remained at 38 + or - 2 deg, while the angular separation between the components increased nearly linearly at the rate of 0.5 + or 0.1 milliarcsec/yr during this period. The corresponding apparent expansion speed is (21 + or - 4)c, for H = 50 km/s per Mpc and q = 0.05

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