A&AS Supplement Series, Vol. 125, November I 1997, 453-458
Received November 10, 1996; accepted January 29, 1997
L.B. Bååth
- F. Mantovani
- F.T. Rantakyrö
Send offprint request: F. Mantovani
Centre for Imaging Technologies, Halmstad
University, S-301 18
Halmstad, Sweden
Istituto di Radioastronomia del C.N.
R., Via P. Gobetti, I-40129
Bologna, Italy
We present VLA A-array observations at 8.4 and 15GHz and European VLBI
Network (EVN) observations at 1.6GHz of the radio source 1422+202.
It is suggested that 1422+202 is a Medium-size Object
in the evolutionary sequence from Compact Steep-spectrum Sources to larger
sized radio sources.
The VLBI data were analysed with the phase referencing technique and we show
that the EVN can work as a phase stable instrument for separations between
the calibrator source and the target source up to 
.
With the VLA and VLBI observations we investigate some of the
issues about the nucleus of 1422+202 and we discuss the possible cause
for the low frequency variability detected while monitoring the source.
keywords: galaxies: jets -- quasars: QSO 1422+202 -- radio continuum: galaxies