1997A&A...327..947F


Query : 1997A&A...327..947F

1997A&A...327..947F - Astronomy and Astrophysics, volume 327, 947-951 (1997/11-3)

Polarization and beaming effect for BL Lacertae objects.

FAN J.H., CHENG K.S., ZHANG L. and LIU C.H.

Abstract (from CDS):

We derive a relation between the observed polarization and beaming factor (Doppler factor) and compare this relation with the observed data for BL Lac objects. Our results indicate that the high optical polarization is correlated to the beaming effect and the difference in polarizations between X-ray selected (XBLs) and radio selected (RBLs) BL Lac objects is due to the difference in their beaming effects.

Abstract Copyright:

Journal keyword(s): BL Lac objects - galaxies: jets-radio continuum: galaxies - polarization

Simbad objects: 32

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Number of rows : 32
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 QSO B0048-09 BLL 00 50 41.3172421464 -09 29 05.210474100 16.74 16.39 16.22 16.14   ~ 434 2
2 QSO J0217+0144 QSO 02 17 48.9544520496 +01 44 49.693296336   16.74 16.09 18.51 13.29 ~ 389 1
3 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 834 1
4 QSO B0235+1624 BLL 02 38 38.9300958576 +16 36 59.276150136   16.46 15.50 15.92   ~ 1450 2
5 4C 47.08 BLL 03 03 35.2422414360 +47 16 16.276532592   17.54 16.95 16.2   ~ 254 1
6 QSO B0317+18 BLL 03 19 51.8082475320 +18 45 34.562475432     18.12     ~ 195 0
7 QSO B0323+022 BLL 03 26 13.9481827296 +02 25 14.675937708   17.05 16.55 15.3   ~ 230 1
8 QSO B0454+844 BLL 05 08 42.3628147248 +84 32 04.544402964     16.5 18.95   ~ 235 1
9 QSO B0521-365 BLL 05 22 57.9841341216 -36 27 30.847204512   15.26 14.62 14.48   ~ 773 2
10 QSO B0537-441 BLL 05 38 50.3617339512 -44 05 08.940591924   15.77 16.48 16   ~ 828 2
11 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 14.17 14.27   ~ 1205 1
12 QSO J0738+1742 BLL 07 38 07.3935719136 +17 42 18.998218764   16.76 16.22 15.78   ~ 924 1
13 QSO B0754+10 BLL 07 57 06.6427726320 +09 56 34.848603888   15.43 15.00 15.99   ~ 418 1
14 QSO B0823+033 BLL 08 25 50.3384535600 +03 09 24.523229736   17.81 17.23 16.91   ~ 305 1
15 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2161 1
16 6C 095456+654857 BLL 09 58 47.2451872176 +65 33 54.819354600     17.0 15.75   ~ 650 1
17 Mrk 421 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2510 1
18 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 812 1
19 7C 1308+3236 BLL 13 10 28.6639899312 +32 20 43.774028664   15.61 15.24 17.91   ~ 788 1
20 QSO B1514-24 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 697 3
21 QSO B1519-273 BLL 15 22 37.6759581696 -27 30 10.784438784   18.72 18.5 17.42   ~ 273 1
22 4C 14.60 BLL 15 40 49.4896705848 +14 47 45.909368088   17.72 17.30 17.240   ~ 392 1
23 4C 39.49 BLL 16 53 52.2160772976 +39 45 36.613228860 14.09 14.15 13.29 8.26   ~ 2015 2
24 QSO B1722+119 BLL 17 25 04.3409350008 +11 52 15.471967296   16.29 15.77 14.45   ~ 182 1
25 7C 1749+7006 BLL 17 48 32.8402992264 +70 05 50.768819304   17.46 17.01 15.48   ~ 400 1
26 4C 09.57 BLL 17 51 32.8186120872 +09 39 00.728629416   17.46 16.78 15.57   ~ 877 1
27 8C 1803+784 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 16.4 15.46   ~ 689 1
28 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 819 2
29 8C 2007+777 BLL 20 05 30.9987913056 +77 52 43.248139536     16.5 17.36   ~ 420 1
30 QSO B2155-304 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1638 1
31 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2125 1
32 QSO B2254+0727 BLL 22 57 17.3029968648 +07 43 12.297630108   17.07 16.36     ~ 291 1

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2022.05.19-21:24:49

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