2005A&A...442...97A


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET11:08:48

2005A&A...442...97A - Astronomy and Astrophysics, volume 442, 97-107 (2005/10-4)

Polarization microvariability of BL Lacertae objects.

ANDRUCHOW I., ROMERO G.E. and CELLONE S.A.

Abstract (from CDS):

We present the results of a systematic observational campaign designed to search for microvariability in the optical polarization of BL Lac objects. We observed a sample formed by 8 X-ray-selected and 10 radio-selected sources, looking for rapid changes in both the degree of linear polarization and the corresponding polarization angle. The whole campaign was carried out during the last three years, and most of the objects were observed on at least two consecutive nights. The statistical properties of both classes of BL Lac objects are compared, and some general conclusions on the nature of the phenomenon are drawn. In general, radio selected sources seem to display higher duty cycles for polarimetric microvariability and, on average, they have a stronger polarization.

Abstract Copyright:

Journal keyword(s): galaxies: active - galaxies: BL Lacertae objects: general - polarization

Simbad objects: 19

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Number of rows : 19

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 B0118-272 BLL 01 20 31.6632705443 -27 01 24.643168036   15.89 15.56 15.49   ~ 242 1
2 QSO B0422+004 BLL 04 24 46.8423020674 +00 36 06.327828096 16.15 15.94 16.98     ~ 329 1
3 QSO B0521-365 BLL 05 22 57.9839686440 -36 27 30.847737786   15.26 14.62 14.48   ~ 733 2
4 QSO B0537-441 BLL 05 38 50.36155219 -44 05 08.9389165   15.77 16.48 16   ~ 800 2
5 QSO B0548-322 BLL 05 50 40.5706739558 -32 16 16.488658537   16.07 15.5     ~ 372 1
6 2MASX J06002215-3853537 G 06 00 22.150 -38 53 53.73   16.12   14.84   ~ 11 1
7 QSO B0829+047 BLL 08 31 48.8771360822 +04 29 39.086736269   17.10 16.4 14.55   ~ 424 2
8 9Y-MST J1026-1748 BLL 10 26 58.5790721272 -17 48 58.865064618   18.39 16.60 17.02   ~ 38 0
9 9Y-MST J1103-2329 BLL 11 03 37.6150843895 -23 29 31.202114088   17.00 16.55 16.61   ~ 323 2
10 QSO B1144-3755 BLL 11 47 01.37070177 -38 12 11.0234199   19.03 16.2 16.72   ~ 266 1
11 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2744 2
12 9Y-MST J1315-4236 BLL 13 15 03.3899187349 -42 36 49.750831008   18.07 16.6 16.59   ~ 87 0
13 QSO B1440+122 BLL 14 42 48.276582 +12 00 40.37487   18.34 17.63 15.2   ~ 140 3
14 QSO J1512-0906 QSO 15 12 50.53292491 -09 05 59.8295878   16.74 16.54     ~ 1174 1
15 QSO B1514-24 BLL 15 17 41.8135246339 -24 22 19.482167214   15.13 14.00 13.95   ~ 663 3
16 QSO B1553+113 BLL 15 55 43.0439413597 +11 11 24.365587666 14.91 14.72 14.57 13.99   ~ 431 1
17 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 826 1
18 QSO B2005-489 BLL 20 09 25.3910622923 -48 49 53.722146927   15.75 12.81 11.41   ~ 518 2
19 QSO B2155-304 BLL 21 58 52.0651817803 -30 13 32.120657891   13.36 13.09 12.62   ~ 1586 1

    Equat.    Gal    SGal    Ecl

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2021.01.27-11:08:48

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