Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987cha%26a..11..201w&link_type=abstract
Chinese Astronomy and Astrophysics, Volume 11, Issue 3, p. 201-206.
Astronomy and Astrophysics
Astrophysics
1
Quasars, Vlbi Observations, Component Sources
Scientific paper
VLBI observations at wavelengths of 18 and 6 cm with baselines up to 15 and 23 million wavelengths have been made in a search for structures on scales of 10 to 100 milliarcseconds (mas) in the quasar 4C 39.25.
No significant structure on these scales above 5% of the peak brightness was detected. The core itself, however, appears to be extended on a scale of 2 to 4 mas and to have a variable flux.
Pauliny-Toth I. I. K.
Porcas Richard W.
Wu Sheng-Yin
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