VLBI observations of 4C 39.25 at 18 and 6 CM waves

Details VLBI observations of 4C 39.25 at 18 and 6 CM waves VLBI observations of 4C 39.25 at 18 and 6 CM waves

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987acaps...7..113w&link_type=abstract

(Acta Astrophysica Sinica, vol. 7, 1987, p. 113-119) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 11, Sept. 1987, p

Astronomy and Astrophysics

Astronomy

Astronomical Spectroscopy, Centimeter Waves, Quasars, Radio Sources (Astronomy), Very Long Base Interferometry, Astronomical Maps, Brightness Distribution, Radiant Flux Density, Spectrum Analysis, Telescopes

Scientific paper

VLBI observations at wavelengths of 18 and 6 cm with European baseline of lengths up to 15 and 23 million wavelengths respectively, have been used to search for structure of the quasar 4C39.25 on scales of 10 to 100 milliarcsec. No significant structure on these scales brighter than 5 percent of the peak brightness has been detected. The core itself, however, appears to be extended on a scale of 2 to 4 milliarcsec and to be variable in flux density.

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