2019MNRAS.486.2379V

Query : 2019MNRAS.486.2379V

2019MNRAS.486.2379V - Mon. Not. R. Astron. Soc., 486, 2379-2396 (2019/June-3)

Ionization-driven intrinsic absorption line variability of BAL quasars in the Stripe 82 region.

VIVEK M.

Abstract (from CDS):

We investigate the connection between the intrinsic C IV absorption line variability and the continuum flux changes of broad absorption line (BAL) quasars using a sample of 78 sources in the Stripe 82 region. The absorption trough variability parameters are measured using the archival multi-epoch spectroscopic data from the Sloan Digital Sky Survey (SDSS), and the continuum flux variability parameters are estimated from the photometric light curves obtained by the SDSS and the Catalina Real-Time Survey surveys. We find evidence for weak correlations (ρs ∼ 0.3) between the intrinsic C IV absorption line variability and the quasar continuum variability for the final sample of 78 BAL quasars. The correlation strengths improve (ρs ∼ 0.5) for the 'high-signal-to-noise ratio (SNR)' sample sources that have higher spectral SNR. Using two subsets of the high-SNR sample differing on the absorption trough depth, we find that the shallow-trough subset shows an even stronger correlation (ρs ∼ 0.6), whereas the deep-trough subset does not show any correlation between the absorption line variability and the continuum variability. These results point to the important role of saturation effects in the correlation between the absorption line variability and the continuum variability of BAL quasars. Considering other effects that can also smear the correlation, we conclude that the actual correlation between the absorption line and continuum variability is even stronger.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

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

Simbad objects: 78

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Number of rows : 78
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 SDSS J210946.54-003633.0 QSO 21 09 46.5450474600 -00 36 33.114554712           ~ 9 0
2 SDSS J211200.99-003443.5 QSO 21 12 00.9963033888 -00 34 43.548661308           ~ 11 0
3 SDSS J211415.82-011316.5 QSO 21 14 15.8220345312 -01 13 16.522426560   20.97 20.59     ~ 18 0
4 SDSS J211518.49+001115.2 QSO 21 15 18.4891873512 +00 11 15.250085232           ~ 8 0
5 SDSS J211829.90+002830.3 QSO 21 18 29.9020223256 +00 28 30.408396420           ~ 9 0
6 [VV2006] J211853.7+002844 QSO 21 18 53.6759283024 +00 28 43.977350532   20.22 19.88     ~ 28 0
7 [VV2006] J211908.5+003246 QSO 21 19 08.4391490256 +00 32 46.367958696   19.02 18.77     ~ 34 0
8 SDSS J212026.14+000735.0 QSO 21 20 26.1415176192 +00 07 35.051517372           ~ 9 0
9 [VV2006] J212204.5-001012 QSO 21 22 04.4657042928 -00 10 12.523089360   21.86 21.03     ~ 25 0
10 [VV2006] J212319.6-002246 QSO 21 23 19.6691023800 -00 22 45.870229740   20.32 19.86     ~ 25 0
11 SDSS J212419.26+004313.5 QSO 21 24 19.2628647936 +00 43 13.532650320   19.69 19.41     ~ 21 0
12 [VV2006] J212811.6-010704 QSO 21 28 11.6220055656 -01 07 04.803673656   20.61 20.07     ~ 33 0
13 [VV2006] J212952.2+003244 QSO 21 29 52.1491732632 +00 32 44.514101220   19.60 19.41     ~ 31 0
14 SDSS J213008.34+002059.9 QSO 21 30 08.3466589032 +00 21 00.023435856   20.09 19.70     ~ 17 0
15 SDSS J213138.07-002537.8 QSO 21 31 38.0695027536 -00 25 37.762551192   19.65 19.11     ~ 29 0
16 [VV2006] J213648.1-001547 QSO 21 36 48.1719916800 -00 15 46.643334480   19.64 19.31     ~ 36 0
17 SDSS J213901.65-004925.2 QSO 21 39 01.6588623744 -00 49 25.314700512   21.30 20.54     ~ 26 0
18 SDSS J214107.19+001213.4 QSO 21 41 07.1956158840 +00 12 13.425396048   22.45 21.33     ~ 26 0
19 [VV2006] J214113.1-003545 QSO 21 41 13.0528262760 -00 35 45.903255612   19.36 19.14     ~ 34 0
20 SDSS J214227.48+005651.8 QSO 21 42 27.4824586008 +00 56 51.793696752   21.48 20.71     ~ 30 0
21 SDSS J214456.60+005926.2 QSO 21 44 56.6121954408 +00 59 26.207615868   20.81 20.54     ~ 19 0
22 SDSS J214701.79+001643.2 QSO 21 47 01.7895297936 +00 16 43.330370268   20.46 20.22     ~ 19 0
23 SDSS J214821.43-003705.7 QSO 21 48 21.4335982152 -00 37 05.885749848   20.65 20.28     ~ 18 0
24 SDSS J215249.27+000722.8 QSO 21 52 49.2773511384 +00 07 22.854769716   20.33 19.97     ~ 20 0
25 SDSS J215631.24+003757.9 QSO 21 56 31.2439475472 +00 37 57.970107156   20.95 20.49     ~ 21 0
26 SDSS J220328.52+005025.1 QSO 22 03 28.527 +00 50 25.19           ~ 10 0
27 SDSS J220505.88-004722.3 QSO 22 05 05.8883266848 -00 47 22.365534048   21.30 20.86     ~ 17 0
28 SDSS J220845.01+010007.5 QSO 22 08 45.0110847600 +01 00 07.576998912   20.95 20.50     ~ 18 0
29 SDSS J220850.30-004544.7 QSO 22 08 50.3125716024 -00 45 44.848510056           ~ 8 0
30 SDSS J221242.48-004114.9 QSO 22 12 42.4805610768 -00 41 14.920158444   19.33 19.09     ~ 22 0
31 SDSS J221326.95+003846.0 QSO 22 13 26.9582861856 +00 38 46.013456868   19.61 19.25     ~ 23 0
32 FIRST J221648.6+012427 QSO 22 15 55.9940608896 +01 01 27.077697048   19.21 18.91     ~ 28 0
33 SDSS J221558.15-005521.7 QSO 22 15 58.1558741040 -00 55 21.668205684           ~ 11 0
34 SDSS J221745.56-004925.4 QSO 22 17 45.5725377744 -00 49 25.377271068   20.88 20.47     ~ 20 0
35 SDSS J222050.59+005948.6 QSO 22 20 50.5987246008 +00 59 48.600891204 21.6323 20.98 20.31   19.8410 ~ 20 0
36 SDSS J222106.05-005541.6 QSO 22 21 06.0599535360 -00 55 41.707616232   20.45 20.23     ~ 21 0
37 SDSS J222157.97-010331.0 QSO 22 21 57.9779161560 -01 03 31.023323208   18.82 18.38     ~ 28 0
38 SDSS J222642.94+004535.6 QSO 22 26 42.9391222680 +00 45 35.638997652   21.19 20.72     ~ 21 0
39 SDSS J222834.61-011120.9 QSO 22 28 34.6175915064 -01 11 21.009921108   20.00 19.74     ~ 20 0
40 SDSS J223118.34-003321.4 QSO 22 31 18.3498645672 -00 33 21.416608260   19.59 19.26 19.2   ~ 25 0
41 SDSS J223253.57-001119.4 QSO 22 32 53.5732275840 -00 11 19.402668600   20.94 20.45 20.2   ~ 19 0
42 SDSS J223437.67+000326.5 QSO 22 34 37.6767717000 +00 03 26.497550160           ~ 8 0
43 SDSS J224206.89+002356.5 QSO 22 42 06.8923123152 +00 23 56.583401892   20.83 20.38     ~ 17 0
44 SDSS J224337.98-005408.1 QSO 22 43 37.9852200936 -00 54 08.142150672           ~ 8 0
45 SDSS J224733.47-002009.0 QSO 22 47 33.4770013224 -00 20 09.128566788   20.42 19.81     ~ 20 0
46 SDSS J225057.74-005630.5 QSO 22 50 57.7493604912 -00 56 30.598768500   21.19 20.91     ~ 24 0
47 2MASS J22560845+0105583 QSO 22 56 08.4808041120 +01 05 57.797366892   18.70 18.32     ~ 31 0
48 FIRST J225706.1-002532 QSO 22 57 06.1696853928 -00 25 32.846959452   20.70 19.86     ~ 30 0
49 SDSS J225722.20+005033.2 QSO 22 57 22.2076149144 +00 50 33.234321408   20.39 19.87     ~ 22 0
50 SDSS J225752.55+002230.3 QSO 22 57 52.5623287272 +00 22 30.437230764   20.45 19.93     ~ 20 0
51 SDSS J225819.00-000352.0 QSO 22 58 19.0084576320 -00 03 51.992168076   20.67 20.31     ~ 20 0
52 SDSS J230639.64+010855.1 QSO 23 06 39.6500522616 +01 08 55.154381136   21.10 20.04     ~ 32 0
53 SDSS J231739.75-005719.4 QSO 23 17 39.7518798744 -00 57 19.474722828   19.77 19.49     ~ 20 0
54 SDSS J231858.56-005049.6 QSO 23 18 58.5594468504 -00 50 49.635637440   22.14 20.97     ~ 32 0
55 SDSS J231911.91-001856.8 QSO 23 19 11.9241577728 -00 18 56.887987896   20.79 20.36     ~ 20 0
56 SDSS J232515.96+004649.8 QSO 23 25 15.9622485456 +00 46 49.878422796   20.60 20.27     ~ 20 0
57 SDSS J232859.37-000519.8 QSO 23 28 59.3781149856 -00 05 19.840947216   20.86 20.25     ~ 19 0
58 SDSS J232931.36-002036.2 QSO 23 29 31.3669192704 -00 20 36.188794608   20.69 20.36     ~ 19 0
59 SDSS J232951.46+010706.6 QSO 23 29 51.4679548752 +01 07 06.581307036           ~ 7 0
60 SDSS J233024.66-003138.4 QSO 23 30 24.6631452912 -00 31 38.419822992   20.46 20.16     ~ 18 0
61 SDSS J233845.19-000327.1 QSO 23 38 45.194 -00 03 27.12           ~ 5 0
62 SDSS J233939.85+001938.1 QSO 23 39 39.8511252576 +00 19 38.053326684   20.18 19.95     ~ 19 0
63 SDSS J234110.00-004159.0 QSO 23 41 10.0076160216 -00 41 59.145372924   21.48 20.55     ~ 20 0
64 [VV2006] J234315.9+004659 QSO 23 43 15.8936519112 +00 46 59.569670388   19.73 19.49     ~ 26 0
65 SDSS J234353.63-004450.6 QSO 23 43 53.6379127416 -00 44 50.678641860   19.69 19.25     ~ 24 0
66 SDSS J234414.97+004855.6 QSO 23 44 14.9775558672 +00 48 55.578002544   20.24 19.76     ~ 19 0
67 QSO B2346+001 QSO 23 48 47.1821263752 +00 27 39.304710036   20.27 19.83     ~ 27 0
68 QSO B2346+002 QSO 23 49 05.0172293904 +00 28 55.002179496   20.72 20.33     ~ 23 0
69 [VV2006] J235224.2-000951 QSO 23 52 24.1382262072 -00 09 50.991049404   20.34 19.92 19.5   ~ 31 0
70 [VV2006] J235238.1+010551 QSO 23 52 38.0917189080 +01 05 52.377118800   18.88 18.19     ~ 40 0
71 LBQS 2350-0045A QSO 23 52 53.5177514496 -00 28 50.433172356   18.73 18.41     ~ 86 0
72 SDSS J235554.11+000444.5 QSO 23 55 54.1177923264 +00 04 44.557901076   20.83 20.37     ~ 20 0
73 SDSS J235610.98-001804.7 QSO 23 56 10.988 -00 18 04.72           ~ 5 0
74 [VV2006] J235629.0-003601 QSO 23 56 28.9669470912 -00 36 02.018896956   19.80 19.37     ~ 38 0
75 [VV2006] J235702.5-004824 QSO 23 57 02.5513617960 -00 48 24.040175688   20.24 19.81     ~ 44 0
76 SDSS J235708.69+003929.6 QSO 23 57 08.6978592984 +00 39 29.744118612   20.14 19.82     ~ 24 0
77 SDSS J235730.49+002538.9 QSO 23 57 30.4934077944 +00 25 38.904241080   20.84 20.30     ~ 19 0
78 [VV2006] J235859.5-002426 QSO 23 58 59.4714645744 -00 24 26.199971892   18.89 18.61     ~ 43 0

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