1999MNRAS.307..725G


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST16:05:33

1999MNRAS.307..725G - Mon. Not. R. Astron. Soc., 307, 725-736 (1999/August-2)

The lambda = 6cm VLBI polarization structure of nine BL Lacertae objects.

GABUZDA D.C., PUSHKAREV A.B. and CAWTHORNE T.V.

Abstract (from CDS):

VLBI total intensity (I) and linear polarization (P) images at λ=6cm have been obtained for nine radio-bright BL Lacertae objects. These are the first VLBI P images for these sources, and, in a number of cases, the first I images as well. They confirm the previously noted tendency for the jet magnetic fields of BL Lacertae objects to be transverse to the local jet direction, but also provide new evidence that a sizeable minority of BL Lacertae objects have VLBI jet components with longitudinal magnetic fields. In addition, two sources have VLBI jet components in which the direction of the electric vector χ bears no obvious relation to the apparent local jet direction; the origin of these arbitrary χ offsets is unclear. A new tentative superluminal speed of β=6.3h–1 has been determined for 0828+493; tentative speeds for two knots in 1418+546 are β=4.3 and 2.5h–1. This work is part of an ongoing programme to determine the VLBI I and P structure of all 34 sources in the 1-Jy sample of northern BL Lacertae objects defined by Kühr & Schmidt.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): polarization - BL Lacertae objects: general - radio continuum: galaxies MNRAS..88..115

Simbad objects: 9

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Number of rows : 9

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 QSO B0048-09 BLL 00 50 41.31738756 -09 29 05.2102688 16.74 16.39 16.22 16.14   ~ 420 2
2 QSO B0119+115 QSO 01 21 41.59504339 +11 49 50.4131012   19.5 19.0 18.61   ~ 164 1
3 QSO B0138-097 BLL 01 41 25.83215547 -09 28 43.6741894   16.94 16.55 17.21   ~ 240 3
4 QSO B0256+075 QSO 02 59 27.07662273 +07 47 39.6429493   18 18 16.9   ~ 160 1
5 QSO B0745+241 QSO 07 48 36.10927469 +24 00 24.1100315   19.70 18.89 17.88   ~ 179 1
6 7C 082848.10+492334.00 BLL 08 32 23.21671411 +49 13 21.0382485   20.17 19.63     ~ 152 1
7 7C 1147+2434 BLL 11 50 19.2119754161 +24 17 53.834754764   16.26 15.74 15.80   ~ 246 1
8 6C 141804+543700 BLL 14 19 46.5976435439 +54 23 14.787308481   16.17 15.65 14.16   ~ 538 1
9 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 811 1

    Equat.    Gal    SGal    Ecl

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2020.07.12-16:05:33

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