English

Variability and polarization in the inner jet of 3C395

Astrophysics 2009-11-06 v1

Abstract

We present new results on the parsec-scale jet of the quasar 3C395, 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 years 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.

Keywords

Cite

@article{arxiv.astro-ph/0101325,
  title  = {Variability and polarization in the inner jet of 3C395},
  author = {L. Lara and A. Alberdi and J. M. Marcaide},
  journal= {arXiv preprint arXiv:astro-ph/0101325},
  year   = {2009}
}

Comments

7 pages, 4 figures, A&A in press