Volume 368, Number 3, March IV 2001
|Page(s)||817 - 823|
|Section||Cosmology (including clusters of galaxies)|
|Published online||15 March 2001|
Variability and polarization in the inner jet of 3C 395
Instituto de Astrofísica de Andalucía (CSIC), Apdo. 3004, 18080 Granada, Spain
2 Departamento de Astronomía, Universitat de Valéncia, 46100 Burjassot, Spain
Corresponding author: L. Lara, email@example.com
Accepted: 8 January 2001
We present new results on the parsec-scale jet of the quasar 3C 395, derived from VLBI polarization-sensitive observations made in 1995.91 and 1998.50 at 8.4, 15.4 and 22.2 GHz. The observations show a complex one-sided jet extending up to 20 mas, with a projected magnetic field essentially aligned with the radio jet. The emission is strongly dominated, in total intensity and polarization, by the core and the inner jet region (of ~3 mas length). We have studied the details of this dominant region finding clear structural variations during this ~2.5 year period, in contrast with the apparent quietness of the jet structure inferred from lower resolution VLBI observations. We observe the ejection of a new component from the core and variations in the degree of polarization of the inner jet components. We estimate a high Faraday Rotation Measure close to the core, with a strong decrease along the inner jet.
Key words: galaxies: active / galaxies: individual: 3C 395 / galaxies: jets / radio continuum: galaxies / techniques: interferometric
© ESO, 2001
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