2008A&A...478...95Y


C.D.S. - SIMBAD4 rel 1.7 - 2020.09.19CEST04:40:15

2008A&A...478...95Y - Astronomy and Astrophysics, volume 478, 95-109 (2008/1-4)

Origin of chromatic features in multiple quasars. Variability, dust, or microlensing.

YONEHARA A., HIRASHITA H. and RICHTER P.

Abstract (from CDS):

In some of lensed quasars, color differences between multiple images are observed at optical/near-infrared wavelengths. There are three possible origins for the color differences: intrinsic variabilities of quasars, differential dust extinction, and quasar microlensing. We examine how these possible scenarios can reproduce the observed chromaticity. We evaluate how much the color difference between multiple images can be reproduced by the scenarios with realistic models; (i) an empirical relation for intrinsic variabilities of quasars, (ii) empirical relations for dust extinction and theoretically predicted inhomogeneity in galaxies, or (iii) a theoretical model for quasar accretion disks and magnification patterns in the vicinity of caustics. We find that intrinsic variabilities of quasars cannot be a dominant source responsible for observed chromatic features in multiple quasars. In contrast, either dust extinction or quasar microlensing can reproduce the observed color differences between multiple images in most of the lensed quasars. Taking into account the time interval between observations in different wavebands in our estimations, quasar microlensing is a more realistic scenario to reproduce the observed color differences than dust extinction. All the observed color differences presented in this paper can be explained by a combination of these two effects, but monitoring observations at multiple wavebands are necessary to disentangle them.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - gravitational lensing - ISM: dust, extinction - galaxies: quasars: general

CDS comments: Tables 1 and 2 : SBS 0909+523 is a misprint for +532 (SBSG 0909+532), Q1017-207 is QSO J1017-207, QJ0158-4325 is not identified.

Simbad objects: 108

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Number of rows : 108

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9510 1
2 NAME SMC Bar PoG 01 05 -72.6           ~ 199 0
3 [SMS87] 0142-100 G G 01 44 -09.7           ~ 23 1
4 QSO B0142-100 QSO 01 45 16.5955770048 -09 45 17.269954127   17.23 16.95     ~ 226 1
5 QSO B0142-100A LeQ 01 45 17.3 -09 45 12     16.9     ~ 37 1
6 QSO B0142-100B LeQ 01 45 17.3 -09 45 12     19.1     ~ 26 1
7 QSO J0158-4325 QSO 01 58 41.3988 -43 25 03.798   17.2 17.2     ~ 57 1
8 [MDM99] CTS 414 C G 01 58 41.47 -43 25 03.8           ~ 8 1
9 [PBK93] B0218+357 G G 02 21 +35.9           ~ 20 1
10 RORF 0218+35A LeI 02 21 05.4667 +35 56 13.730           ~ 32 0
11 QSO B0218+357 QSO 02 21 05.5 +35 56 14   20.0 20.0 19.60   ~ 501 3
12 RORF 0218+35B LeI 02 21 05.5 +35 56 14           ~ 29 0
13 [HTL92] C LeI 04 14 37.64 +05 34 42.7           ~ 41 0
14 [HTL92] G G 04 14 37.70 +05 34 43.0     24.4     ~ 36 1
15 [HTL92] B LeI 04 14 37.73 +05 34 44.3     25.5     ~ 45 0
16 4C 05.19 QSO 04 14 37.7673624 +05 34 42.328449   24.100 23.800 21.270   ~ 333 2
17 [HTL92] A1 LeI 04 14 37.77 +05 34 42.4           ~ 46 0
18 [HTL92] A2 LeI 04 14 37.78 +05 34 42.8           ~ 45 0
19 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14929 1
20 [JNB98] B0712+472 A LeI 07 16 03.633 +47 08 50.12           ~ 13 0
21 [JNB98] B0712+472 B LeI 07 16 03.638 +47 08 49.96           ~ 13 0
22 QSO B0712+472 QSO 07 16 03.65 +47 08 50.6     23.0     ~ 105 1
23 [FC98] B0712+472 G G 07 16 03.65 +47 08 50.6           ~ 19 1
24 [JNB98] B0712+472 C LeI 07 16 03.712 +47 08 49.45           ~ 12 0
25 [JNB98] B0712+472 D LeI 07 16 03.747 +47 08 50.58           ~ 12 0
26 JCMTSF J083141.3+524518 LeQ 08 31 41.64 +52 45 17.5           ~ 15 0
27 [ILI99] APM 08279+5255 C G 08 31 41.65 +52 45 17.6           ~ 13 1
28 [ILI99] APM 08279+5255 B LeQ 08 31 41.65 +52 45 17.8           ~ 12 0
29 QSO J0831+5245 QSO 08 31 41.7095363198 +52 45 17.620340544   19.2   14.5 13.9 ~ 492 1
30 [BCL98] RX J0911.4+0551 B LeI 09 11 27.35 +05 50 53.6           ~ 21 0
31 [KCH2000] L2 GiC 09 11 27.50 +05 50 53.3           ~ 22 1
32 [BCL98] RX J0911.4+0551 A1 LeI 09 11 27.55 +05 50 52.8           ~ 32 0
33 [BCL98] RX J0911.4+0551 A3 LeI 09 11 27.55 +05 50 53.7           ~ 25 0
34 QSO B0908+0603 QSO 09 11 27.6052 +05 50 54.281   18.44 18.16     ~ 210 2
35 [KFS97] 0909+532 G G 09 13 +53.0           ~ 13 2
36 QSO B0909+532B LeI 09 12.7 +53 00           ~ 21 1
37 QSO B0909+532A LeI 09 12.7 +53 00           ~ 21 1
38 QSO B0909+5312 QSO 09 13 01.031 +52 59 28.90   17.29 16.71     ~ 131 1
39 [VV98] J095122.6+263513 QSO 09 51 22.5840 +26 35 13.786   17.66 17.31     ~ 95 1
40 [SGB98] J0951+2635 C G 09 51 22.59 +26 35 14.1   20.25 20.00     ~ 22 1
41 [SGB98] J0951+2635 A LeQ 09 51 22.629 +26 35 13.98   17.66 17.31     ~ 17 1
42 [SGB98] J0951+2635 B LeQ 09 51 22.695 +26 35 13.32   18.55 18.25     ~ 17 1
43 QSO B0952-0115 QSO 09 55 00.1037541106 -01 30 06.549307797     18.7     ~ 131 0
44 [MIH92] 0952-0115 G G 09 55 00.11 -01 30 06.2           ~ 11 0
45 8C 0958+561 QSO 10 01 20.6915852239 +55 53 55.595776916   17.16 16.95     ~ 698 3
46 QSO B0957+5608B QSO 10 01 20.8374436455 +55 53 49.543959298   17.16 16.95     ~ 266 1
47 YGKOW G1 G 10 01 20.86 +55 53 50.7           ~ 49 1
48 [LFK2000] 1009-0252 G G 10 12 -03.1           ~ 11 1
49 QSO B1009-0252B LeQ 10 12 15.73 -03 07 02.4   20.8 20.5     ~ 14 0
50 LBQS 1009-0252 QSO 10 12 15.89 -03 07 03.1   18.82 18.71     ~ 73 1
51 [LFK2000] J1017-207 G G 10 17 -20.7           ~ 5 1
52 QSO B1015-205 QSO 10 17 23.98 -20 46 58.6   17.08 17.08     ~ 57 2
53 [LFK2000] 1030+074 B LeI 10 33 +07.1           ~ 11 0
54 [LFK2000] 1030+074 G G 10 33 +07.1           ~ 17 1
55 [LFK2000] 1030+074 A LeI 10 33 +07.1           ~ 11 0
56 QSO B1030+074 QSO 10 33 34.02429 +07 11 26.1478     20.34 20.22   ~ 98 1
57 [WKK93] G G 11 06 33.33 -18 21 24.0           ~ 35 1
58 QSO B1104-181 QSO 11 06 33.39 -18 21 23.8   15.8 15.9 15.7   ~ 301 1
59 [BDW2002] q1104-1805a LeQ 11 06 33.50 -18 21 24.0     16.8     ~ 46 0
60 [BDW2002] q1104-1805b LeQ 11 06 33.60 -18 21 26.0     18.8     ~ 42 0
61 [WZA2016] pg1115 6 169.57063+07.76630 G 11 18 16.95 +07 45 58.7           ~ 46 1
62 QSO B1115+080A QSO 11 18 16.951 +07 45 58.23   16.61 16.44     ~ 625 2
63 [YDG81] QSO 1115+080 A1 LeI 11 18 17.09 +07 45 55.7           ~ 45 0
64 [YDG81] QSO 1115+080 A2 LeI 11 18 17.10 +07 45 56.1           ~ 43 0
65 QSO B1208+101 QSO 12 10 57.0378198925 +09 54 27.078644555     17.5     ~ 110 1
66 QSO B1208+1011B LeQ 12 10 57.06 +09 54 26.7           ~ 6 0
67 QSO B1208+1011A LeQ 12 10 57.07 +09 54 27.2           ~ 6 0
68 [PBW92] 1422+231 C LeI 14 24 38.07 +22 55 59.9           ~ 46 0
69 [PBW92] 1422+231 B LeI 14 24 38.09 +22 56 00.6           ~ 47 0
70 [PBW92] 1422+231 E G 14 24 38.09 +22 56 00.7           ~ 41 1
71 QSO B1422+2309 QSO 14 24 38.09400 +22 56 00.5900   16.77 15.84 14.79   ~ 418 1
72 [PBW92] 1422+231 gLS 14 24 38.09400 +22 56 00.5900   16.77 15.84 14.79   ~ 355 0
73 [PBW92] 1422+231 A LeI 14 24 38.12 +22 56 00.9           ~ 45 0
74 [PBW92] 1422+231 D LeI 14 24 38.16 +22 55 59.8           ~ 38 0
75 QSO B1520+530 QSO 15 21 44.8 +52 54 49   18.2       ~ 116 2
76 [CVS97] A LeI 15 21 44.91 +52 54 48.7   18.61 18.17     ~ 20 0
77 [CSB98] G G 15 21 45.03 +52 54 48.3           ~ 22 1
78 [CVS97] B LeI 15 21 45.11 +52 54 48.6   18.89 18.70     ~ 20 0
79 QSO B1600+4344 QSO 16 01 40.4818 +43 16 47.394   22.12 21.92     ~ 176 1
80 [JH97] B1600+434 Lens G 16 02 +43.3     22.5     ~ 23 1
81 [FC98] B1600+434 B LeI 16 02 +43.3           ~ 3 0
82 [FC98] B1600+434 A LeI 16 02 +43.3           ~ 3 0
83 [MBG2001] J1633+3134 A LeQ 16 33 48.974 +31 34 11.85   18.046 17.624     ~ 2 0
84 [VV2000] J163348.9+313411 QSO 16 33 48.9842 +31 34 11.871   17.1 17.41 17.0   ~ 47 1
85 [MBG2001] J1633+3134 B LeQ 16 33 49.020 +31 34 11.44   19.019 18.905     ~ 2 0
86 QSO B2016+112B QSO 20 19 18.0 +11 27 13     22.5     ~ 32 0
87 [LSS84] 2016+112 C LeI 20 19 18.036 +11 27 11.44           ~ 17 0
88 [LSS84] 2016+112 D G 20 19 18.07 +11 27 13.2           ~ 34 1
89 QSO J2019+1127A LeQ 20 19 18.1 +11 27 11           ~ 11 0
90 QSO B2016+112 QSO 20 19 18.2 +11 27 14     22.5     ~ 192 1
91 [MKF2007] C LeI 20 47 20.26445 +26 44 01.9007           ~ 10 0
92 [MKF2007] B LeI 20 47 20.27594 +26 44 02.4428           ~ 10 0
93 [FBC99] 2045+265 A LeI 20 47 20.28593 +26 44 02.6911           ~ 8 0
94 [VV2000] J204719.3+264340 QSO 20 47 20.3 +26 44 03     20.60     ~ 107 2
95 [FBC99] 2045+265 E G 20 47 20.36859 +26 44 01.8840           ~ 21 1
96 QSO B2149-2745 QSO 21 52 07.4534 -27 31 49.718   18.70 18.39     ~ 96 2
97 [WKL96] HE 2149-2745 G G 21 52 07.48 -27 31 49.3           ~ 23 1
98 QSO B2149-2745A LeQ 21 52 07.53 -21 31 49.9   17.13 16.82     ~ 12 1
99 QSO B2149-2745B LeQ 21 55 -27.4   18.70 18.39     ~ 10 1
100 QSO J2240+0321 QSO 22 40 30.234 +03 21 30.63           ~ 643 0
101 Z 378-15 G 22 40 30.23447 +03 21 30.6290           ~ 629 0
102 QSO B2237+0305D LeI 22 40 30.28 +03 21 29.3   18.98       ~ 76 0
103 QSO B2237+0305B LeI 22 40 30.30 +03 21 30.5   17.82       ~ 76 0
104 QSO B2237+0305A LeI 22 40 30.34 +03 21 28.8   17.96       ~ 88 0
105 QSO B2237+0305C LeI 22 40 30.38 +03 21 30.0   18.66       ~ 79 0
106 [SRS93] 1009-0252 A LeI ~ ~           ~ 1 0
107 [LSS84] 2016+112 E G ~ ~         24.6 ~ 7 0
108 [MBS92] 1208+101 B LeI ~ ~           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.09.19-04:40:15

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