Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985aj.....90.1989w&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 90, Oct. 1985, p. 1989-1991. NSF-supported research.
Astronomy and Astrophysics
Astronomy
20
Extragalactic Radio Sources, Light Speed, Quasars, Radio Emission, Astronomical Models, Radio Astronomy
Scientific paper
A second epoch (1983.26) map of the milliarcsecond structure of the radio emission from 3C 395 at 5 GHz has been made. The map is similar to one from epoch 1979.93 and is dominated by two components: a compact component and a resolved component separated by 15.6 mas along a position angle of 118°. In addition, a third compact component is detected 3.7±0.8 mas from the core, also at a position angle of 118°. Reanalysis of the 1979.93 data also reveals a third component along position angle 118°, but with a separation of only 1.2±0.3 mas from the core. If these third compact components in the 1979.93 and 1983.26 maps are identified as the same component, then this component is moving toward the stationary resolved component at an apparent speed of approximately 21 c. This result, if confirmed, would make 3C 395 the first source to display superluminal resupply of an apparently stationary hot spot.
Johnston Ken J.
Simon Richard S.
Spencer John H.
Waak John A.
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