VSOP/global VLBI observations of 2021+614: Detection of hotspot advance

Details VSOP/global VLBI observations of 2021+614: Detection of hotspot advance VSOP/global VLBI observations of 2021+614: Detection of hotspot advance

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999newar..43..681t&link_type=abstract

New Astronomy Reviews, Volume 43, Issue 8-10, p. 681-684.

Astronomy and Astrophysics

Astronomy

5

Scientific paper

We have analysed VSOP and global VLBI data at 5 GHz and VLBA /+ Effelsberg data at 15 GHz for 2021+614. By identifying the core as being between two bright hotspots, we show that 2021+614 is a compact symmetric object of size /~40 pc. From comparison with earlier observations we deduce an apparent age of <~375 yr for 2021+614. This provides additional support for the contention that compact symmetric radio objects associated with galaxies are in fact young radio sources and the possible precursors of the classical FR I or FR II radio galaxies.

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