2002A&A...381..408E


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.21CEST02:55:16

2002A&A...381..408E - Astronomy and Astrophysics, volume 381, 408-419 (2002/1-2)

Photopolarimetric monitoring of OJ 287 in 1994-1997.

EFIMOV Yu.S., SHAKHOVSKOY N.M., TAKALO L.O. and SILLANPAEAE A.

Abstract (from CDS):

We present and discuss the UBVRI photopolarimetric data of blazar OJ 287 obtained at the Crimean Astrophysical Observatory from January 1994 until April 1997 as a part of the international OJ-94 campaign. The variations of brightness and linear polarization detected in all used optical bands are similar. No clear correlation was found between the brightness variations and polarization parameters. The most prominent characteristic in the object variability is the apparent continuous rotation of the observed polarization position angle in 1994-1996. The rate of this rotation over two observational seasons in 1994-1995 and 1995-1996 is about 4.92°/day in a clockwise direction. This rate corresponds to the full 360° rotation of the polarization plane in about 73 days. We consider the rotation of the plane of polarization as direct evidence for helical magnetic field structure in the jet of OJ 287.

Abstract Copyright:

Journal keyword(s): BL Lacertae objects: individual: OJ 287 - polarization

CDS comments: p.412, par. 3.4 : for S5 0714+714 read 0716+714

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 QSO B0109+224 BLL 01 12 05.8246825085 +22 44 38.786096536   16.00 15.66 15.47   ~ 306 2
2 QSO J0217+0144 QSO 02 17 48.9547510 +01 44 49.698899   16.74 16.09 18.51 13.29 ~ 383 1
3 3C 66A BLL 02 22 39.6111630878 +43 02 07.797284539   15.71 15.21 14.5   ~ 810 1
4 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1160 1
5 QSO J0738+1742 BLL 07 38 07.39374766 +17 42 18.9982302   16.76 16.22 15.78   ~ 907 1
6 QSO J0854+2006 BLL 08 54 48.8749311881 +20 06 30.642936668   15.91 15.43 15.56   ~ 2074 1
7 4C -00.35 Rad 08 58 42.01 -00 27 47.3           ~ 12 1
8 Mrk 421 BLL 11 04 27.3139210166 +38 12 31.798324828   13.50 12.90 8.31   ~ 2444 1
9 7C 1219+2830 BLL 12 21 31.6902446544 +28 13 58.500383827   16.81 16.11 14.24   ~ 796 1
10 3C 345 QSO 16 42 58.8100340220 +39 48 36.999540578   16.81 16.59 16.84   ~ 1579 2

    Equat.    Gal    SGal    Ecl

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2021.04.21-02:55:16

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