VLBI MERLIN and VLA Observations of the Blazar 1156+295 - a Bending Relativistic Jet

Details VLBI MERLIN and VLA Observations of the Blazar 1156+295 - a Bending Relativistic Jet VLBI MERLIN and VLA Observations of the Blazar 1156+295 - a Bending Relativistic Jet

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990mnras.246..305m&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 246, NO.2/SEP15, P. 305, 1990

Astronomy and Astrophysics

Astronomy

23

Scientific paper

We present VLBI maps at 18, 6, 2.8 and 1.35 cm of the blazar 1156 + 295 which show a jet emerging from the core along position angle (PA) ~20^deg^ and bending to larger PA further out. Maps at 6 cm from 1987 May and 1988 November show different structure, indicating the probable movement from the core of a component with a very high apparent transverse velocity (~15 h^-1^ c where H_0_ = 100 h km s^-1^ Mpc^-1^ and q_0_ = 0.5). The 2.8- and 1.35-cm maps are consistent with this hypothesis. We also present MERLIN and VLA total intensity and polarization maps at 18, 6 and 2 cm which show a 2-arcsec jet emerging from the core in PA - 19^deg^. We show how a bending relativistic jet can also explain the variability seen in this source.

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