2005MNRAS.356..859P


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.12CET11:49:32

2005MNRAS.356..859P - Mon. Not. R. Astron. Soc., 356, 859-871 (2005/January-3)

Spine-sheath polarization structures in four active galactic nuclei jets.

PUSHKAREV A.B., GABUZDA D.C., VETUKHNOVSKAYA Y.N. and YAKIMOV V.E.

Abstract (from CDS):

We present the results of multifrequency (15 + 8 + 5GHz) polarization Very Long Baseline Array (VLBA) observations of the three BL Lacertae objects 0745+241, 1418+546 and 1652+398 together with 5-GHz VLBI Space Observatory Programme (VSOP) observations of 1418+546 and 1.6- and 5-GHz VSOP observations of the blazar 1055+018. The jets of all these sources have polarization structure transverse to the jet axis, with the polarization E vectors aligned with the jet along the jet spine and `sheaths' of orthogonal E vectors at one or both edges of the jet. The presence of polarization aligned with the jet near the `spine' may indicate that the jets are associated with helical B fields that propogate outward with the jet flow; the presence of orthogonal polarization near the edges of the jet may likewise be a consequence of a helical jet B field, or may be owing to an interaction with the ambient medium on parsec scales. We have tentatively detected interknot polarization in 1055+018 with E aligned with the local jet direction, consistent with the possibility that the jet of this source is associated with a helical B field.

Abstract Copyright: 2004 RAS

Journal keyword(s): magnetic fields - polarization - BL Lacertae objects: general

CDS comments: P.860 : 1419+546 is a misprint for 1418+546.

Simbad objects: 8

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Number of rows : 8

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 84 Sy2 03 19 48.1597607660 +41 30 42.114155434   13.10 12.48 11.09   ~ 3469 3
2 QSO B0745+241 QSO 07 48 36.10927469 +24 00 24.1100315   19.70 18.89 17.88   ~ 172 1
3 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 1949 1
4 4C 01.28 BLL 10 58 29.60520747 +01 33 58.8237691   18.74 18.28 16.68   ~ 624 2
5 6C 141804+543700 BLL 14 19 46.5976435439 +54 23 14.787308481   16.17 15.65 14.16   ~ 530 1
6 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1880 2
7 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 788 1
8 4C 56.27 BLL 18 24 07.06837771 +56 51 01.4908371   18.9 18.4 16.48   ~ 431 1

    Equat.    Gal    SGal    Ecl

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2019.12.12-11:49:32

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