Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002evn..conf..159g&link_type=abstract
6th European VLBI Network Symposium on New Developments in VLBI Science and Technology, held in Bonn, June 25th-28th 2002, proce
Astronomy and Astrophysics
Astronomy
3
Scientific paper
We present the most recent results from the analysis of the radio data on the pc-scale structure of two unique radio galaxies, namely 3C 310 and Hercules A. The radio galaxies were observed at 18 cm by the Global VLBI and the EVN arrays respectively.
Two compact components are detected at the core region of 3C 310 at 4 mas with the global VLBI with angular size ≍ 8 times 7, and ≍ 8.8 times 3.6 mas and position angle ≅14.8 and ≅177 degrees. The corresponding total flux density is 9.5 and 8.8 mJy respectively. A possible misalignment is also found between the pc- and kpc-scale jets.
A faint but compact radio source, was detected by the EVN at the core region of Hercules A at 18 mas resolution. The total flux density of the EVN core is 14.6 mJy. Its angular size is 18 times 7 mas with a position angle of approximately 139 degrees. There is also evidence for extended emission in the NW-SE direction, most probably from the eastern pc-scale jet. If this is true then there is a misalignment between the direction of the pc-eastern and the aligned kpc-scale jets of about 35 degrees.
Garrett Mike A.
Gizani Nectaria A. B.
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