Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...344..402n&link_type=abstract
Astronomy and Astrophysics, v.344, p.402-408 (1999)
Astronomy and Astrophysics
Astrophysics
14
Polarization, Galaxies: Jets, Galaxies: Magnetic Fields, Galaxies: Quasars: Individual: 3C 119, Radio Continuum: Galaxies
Scientific paper
We have mapped the distribution of the rotation measure of the CSS source 3C 119 on milliarcsecond scales using VLBA observations obtained at three widely-separated frequencies in the available 8.4-GHz band. The resulting images at frequencies 8.16, 8.52, and 8.86 GHz demonstrate that the material associated with the large integrated rotation measure of the source is concentrated near the brightest jet component C. There is a large, smooth gradient of the rotation measure in this component of 2300 rad/m(2) /mas, with the largest rotation measure at the leading edge. This supports the idea that C is associated with a collision between the VLBI jet and a dense intergalactic cloud. The magnetic field in C is aligned with the flow into C from the northeast, and swings through ~ 45(deg) so that it remains aligned with the inferred flow toward the emission further down the jet, nearly directly to the south.
Gabuzda Denise C.
Inoue Makoto
Kameno Seiji
Nan Rendong
Schilizzi Richard T.
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