Variability and polarization in the inner jet of 3C395

被引:0
|
作者
Lara, L
Alberdi, A
Hiarcaide, JM
机构
[1] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain
[2] Univ Valencia, Dept Astron, E-46100 Burjassot, Spain
来源
ASTRONOMY & ASTROPHYSICS | 2001年 / 368卷 / 03期
关键词
galaxies : active; galaxies : individual : 3C 395; galaxies : jets; radio continuum : galaxies techniques : interferometric;
D O I
10.1051/0004-6361:20010059
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
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 similar to3 mas length). We have studied the details of this dominant region finding clear structural variations during this similar to2.5 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.
引用
收藏
页码:817 / 823
页数:7
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