2011ApJS..193....9D


Query : 2011ApJS..193....9D

2011ApJS..193....9D - Astrophys. J., Suppl. Ser., 193, 9 (2011/March-0)

Very Large Telescope spectropolarimetry of broad absorption line QSOs.

DIPOMPEO M.A., BROTHERTON M.S. and DE BREUCK C.

Abstract (from CDS):

We present spectropolarimetry of 19 confirmed and four possible bright, southern broad absorption line (BAL) quasars from the European Southern Observatory Very Large Telescope. A wide range of redshifts is covered in the sample (from 0.9 to 3.4), and both low- and high-ionization quasars are represented, as well as radio-loud and radio-quiet BALQSOs. We continue to confirm previously established spectropolarimetric properties of BALQSOs, including the generally rising continuum polarization with shorter wavelengths and comparatively large fraction with high broadband polarization (6 of 19 with polarizations >2%). Emission lines are polarized less than or similar to the continuum, except in a few unusual cases, and absorption troughs tend to have higher polarizations. A search for correlations between polarization properties has been done, identifying two significant or marginally significant correlations. These are an increase in continuum polarization with decreasing optical luminosity (increasing absolute B magnitude) and decreasing C IV emission-line polarization with increased continuum polarization.

Abstract Copyright: ∼

Journal keyword(s): polarization - quasars: absorption lines - quasars: emission lines - quasars: general

CDS comments: In parag. 3 star NGC 2024 NIR 1 not identified

Simbad objects: 28

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Number of rows : 28
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 LBQS 2358+0216 QSO 00 01 21.6845637720 +02 33 04.948147224     18.6     ~ 20 0
2 [VV2006] J001825.0+001526 QSO 00 18 24.9596214216 +00 15 25.905758400   20.79 20.20     ~ 29 0
3 [VV2006] J004323.4-001552 QSO 00 43 23.4310133880 -00 15 52.485247008   19.00 18.69     ~ 63 1
4 QSO B0047-309 QSO 00 49 38.0998013424 -30 39 52.027559316   18.82 18.43     ~ 9 0
5 [VV2006] J010540.7-003313 QSO 01 05 40.7574660720 -00 33 13.854093948   19.72 18.76     ~ 37 0
6 LBQS 0109-0128 QSO 01 12 27.6059783400 -01 12 21.714645744   18.63 18.37     ~ 64 0
7 [VV2006] J011540.1-003328 QSO 01 15 40.0569103320 -00 33 28.739623824   18.18 18.08     ~ 33 0
8 [VV2006] J012702.5+011413 QSO 01 27 02.5285733112 +01 14 12.465570768   19.49 18.65     ~ 35 0
9 QSO B0134-376 QSO 01 36 52.6091254176 -37 25 05.245418100     18.2     ~ 12 0
10 [VV2006] J025042.4+003537 QSO 02 50 42.4551732456 +00 35 36.722245236   19.95 19.26     ~ 48 0
11 SDSS J030000.56+004828.0 QSO 03 00 00.5687857104 +00 48 27.963948708   20.18 18.29     ~ 55 0
12 [VV2006] J031856.6-060038 QSO 03 18 56.6259918384 -06 00 37.710565128   19.83 18.62     ~ 52 0
13 QSO B0335-336 QSO 03 37 21.7455375168 -33 29 12.485096880   17.7 18.5     ~ 36 0
14 QSO J0338+0056 QSO 03 38 10.8539196720 +00 56 17.699957628   20.11 19.38     ~ 35 0
15 GD 50 WD* 03 48 50.1859724280 -00 58 32.290187664 12.596 13.787 14.063 14.210 14.388 DA1.2 272 1
16 Ve 6-23 Or* 09 06 00.0118809024 -47 18 58.165963236 14.28 13.83 12.12     B0V 54 0
17 [VV2006] J133701.4-024630 BLL 13 37 01.3951555392 -02 46 30.254123460   19.50 19.11     ~ 42 0
18 [VV2006] J151630.3-005625 QSO 15 16 30.3101913336 -00 56 25.545204420   19.47 19.11     ~ 36 1
19 CD-38 10980 WD* 16 23 33.8380498896 -39 13 46.161043572 9.916 10.885 11.029 10.936 10.841 DA2 526 0
20 HD 316232 * 17 45 43.6893737952 -29 13 18.038792028 10.61 10.92 10.27 10.25   O9IV 38 0
21 BD-12 5133 * 18 40 01.6961497488 -12 24 06.777653508 11.25 11.39 10.71 10.70   OB- 44 0
22 QSO B2043-347 QSO 20 46 44.8809963600 -34 33 36.702387144   18.93 17.82     ~ 7 0
23 LBQS 2111-4335 QSO 21 15 06.9116 -43 23 10.791   17.6 16.7     ~ 20 0
24 FBQS J2204+0031 QSO 22 04 45.2718015528 +00 31 41.849579820   18.89 17.94     ~ 33 0
25 QSO J2215-0045 QSO 22 15 11.9378457096 -00 45 49.958215488   17.61 16.95     ~ 55 0
26 QSO B2240-370 QSO 22 43 46.0542456744 -36 47 04.647387120     18.0     ~ 29 0
27 [VV2006] J235238.1+010551 QSO 23 52 38.0917189080 +01 05 52.377118800   18.88 18.19     ~ 40 0
28 LBQS 2350-0045A QSO 23 52 53.5177514496 -00 28 50.433172356   18.73 18.41     ~ 86 0

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