2007AJ....133..303C

Query : 2007AJ....133..303C

2007AJ....133..303C - Astron. J., 133, 303-312 (2007/January-0)

Optical microvariability in radio-quiet quasars.

CARINI M.T., NOBLE J.C., TAYLOR R. and CULLER R.

Abstract (from CDS):

We report the results of a study of optical microvariability in radio-quiet and radio-intermediate quasars. Observations were obtained on a total of seven objects: five radio-quiet quasars and two radio-intermediate quasars. No microvariability was detected in either the radio-quiet or radio-intermediate objects in our sample, despite intensive monitoring for several consecutive nights. In one object, PG 1257+346, evidence for interday variability was detected. We examined a sample of 117 radio-quiet objects found in the literature that have been studied for microvariability. This sample is discussed in terms of classification, redshift distribution, R (the ratio of the radio [5 GHz] flux to the optical [4400 Å] flux), optical magnitude, luminosity, and observing strategy. Objects with 10>R>1 were found to show a higher instance of microvariability than those with R<1. This suggests that R=1 is the appropriate cutoff between radio-loud and radio-quiet objects. A preference for low-redshift objects to display microvariability more often than higher redshift objects is seen; however, this is explainable via selection effects. We find a dependence in detection probability on observation length similar to that seen in radio-loud objects.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Photometry - Galaxies: Quasars: General

VizieR on-line data: <Available at CDS (J/AJ/133/303): table1.dat table3.dat refs.dat>

Simbad objects: 117

goto Full paper

goto View the references in ADS

Number of rows : 117
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Mrk 335 Sy1 00 06 19.5372339024 +20 12 10.617404076   14.19 13.85     ~ 1253 0
2 QSO B0013+0213 QSO 00 15 55.1482399512 +02 30 23.699481948     16.42     ~ 7 0
3 LEDA 1790 Sy1 00 29 13.7012449608 +13 16 03.947778264   15.70 15.41     ~ 444 0
4 QSO B0043+0354 Sy1 00 45 47.2231233240 +04 10 23.386759392   15.88 16.00     ~ 156 0
5 LBQS 0050-2523 QSO 00 52 44.7022019640 -25 06 52.631383392     16.1     ~ 25 0
6 Mrk 1502 Sy1 00 53 34.9331107632 +12 41 35.929269132   14.41 14.03     ~ 1167 1
7 LEDA 3237 Sy1 00 54 52.1183662680 +25 25 38.983241532     15.42     ~ 386 0
8 LBQS 0058+0155 QSO 01 00 54.1201107072 +02 11 36.331220364   17.48 17.16     ~ 164 0
9 PHL 957 QSO 01 03 11.2741573824 +13 16 17.809871484   16.97 16.57     ~ 345 0
10 2MASS J01135451+3907443 Sy1 01 13 54.5092832352 +39 07 44.482392156   16.7 16.7     ~ 19 0
11 QSO B0117+2118 QSO 01 20 17.2642359528 +21 33 46.197696168     16.1     ~ 127 0
12 Mrk 357 SyG 01 22 40.5874370808 +23 10 14.691256572   15.76 15.40     ~ 92 0
13 ESO 113-45 Sy1 01 23 45.7631533440 -58 48 20.808928944   14.08 13.83 13.34   ~ 880 0
14 QSO B0142-100 QSO 01 45 16.5958283760 -09 45 17.265131352   17.23 16.95     ~ 242 1
15 Mrk 1014 Sy1 01 59 50.2534701768 +00 23 40.864244784   16.08 15.87     ~ 572 0
16 QSO B0226-104 QSO 02 28 39.1003624176 -10 11 10.561080840   16.3 17.0     ~ 68 0
17 PB 6882 Sy1 02 46 51.9154329792 -00 59 30.996862872   17.24 17.05     ~ 71 0
18 LB 2845 QSO 02 59 37.4641575192 +00 37 36.367307832   16.79 16.72     ~ 77 0
19 Mrk 1095 Sy1 05 16 11.4092471904 -00 08 59.157166920   14.30 13.92     ~ 890 1
20 ATO J079.1395-00.4537 Sy1 05 16 33.4955502624 -00 27 13.596485796   16.26 16.18     ~ 34 0
21 QSO B0530-37 QSO 05 32 30.7388778192 -37 53 20.579001828     16.7     ~ 29 0
22 QSO B0540-3857 QSO 05 41 52.0458638736 -38 56 21.291600624     17.2     ~ 13 0
23 UGC 3374 Sy1 05 54 53.6080860768 +46 26 21.624853488   15.37 14.62     ~ 523 2
24 Mrk 376 Sy1 07 14 15.0840050688 +45 41 55.900253292   15.17 14.62     ~ 188 1
25 Mrk 9 Sy1 07 36 57.0265753824 +58 46 13.432215792   14.77 14.37     ~ 245 0
26 QSO J0745+4734 QSO 07 45 21.7878198936 +47 34 36.191801820   16.76 16.44     ~ 101 0
27 QSO B0748+295 QSO 07 51 12.3036555000 +29 19 38.279865864   16.28 16.18     ~ 62 0
28 2MASS J08105865+7602424 Sy1 08 10 58.6641543864 +76 02 42.450451260   15.03 14.71     ~ 469 0
29 1RXP J082740.1+094210 V* 08 27 40.2001470024 +09 42 08.081459352     15.50     ~ 15 1
30 QSO B0832+2510 QSO 08 35 35.8061692320 +24 59 40.183955880   16.30 16.00     ~ 69 0
31 Ton 951 Sy1 08 47 42.4485615096 +34 45 04.482515304   14.83 14.50     ~ 466 0
32 QSO B0846+1540 QSO 08 49 08.1007536696 +15 29 31.525677564     18.3     ~ 39 0
33 US 1867 Sy1 08 53 34.2440799000 +43 49 02.336647692   17.15 16.91     ~ 102 0
34 QSO B0856+1713 QSO 08 59 18.0121726344 +17 02 18.351742992   19.0 19.0     ~ 42 0
35 Mrk 110 Sy1 09 25 12.8479065576 +52 17 10.386311208   16.82 16.41     ~ 604 0
36 Ton 1057 Sy1 09 25 54.7145627448 +19 54 05.064888348   16.02 15.89     ~ 174 0
37 Mrk 705 Sy1 09 26 03.2694421008 +12 44 03.732389268   15.15 14.60     ~ 326 0
38 US 737 QSO 09 35 02.5322373288 +43 31 10.637924844   15.92 15.93     ~ 74 0
39 US 796 QSO 09 38 57.0175740480 +41 28 21.216772452   16.94 16.75     ~ 138 1
40 QSO B0936+3653 QSO 09 39 35.1198050472 +36 40 00.929644968   18.54 18.32     ~ 38 0
41 QSO B0943+3253 QSO 09 46 36.8680831104 +32 39 49.535298792   17.89 17.48     ~ 31 0
42 US 995 Sy1 09 48 59.4746090952 +43 35 18.955277736   17.17 16.86     ~ 51 0
43 QSO J0949+2955 QSO 09 49 41.1069232848 +29 55 19.261130988   16.00 16.2     ~ 148 0
44 QSO B0947+3039 QSO 09 50 45.7121591688 +30 25 18.484622256   17.29 16.92     ~ 32 0
45 PG 0953+414 Sy1 09 56 52.3931554992 +41 15 22.211247636 14.710 15.611 15.546 15.294 14.720 ~ 452 0
46 QSO B1011-040 Sy1 10 14 20.6738908080 -04 18 40.372940484   15.49 15.5     ~ 145 0
47 Ton 34 QSO 10 19 56.5979680488 +27 44 01.738221864   16.06 15.69     ~ 112 0
48 GD 122 WD* 10 32 05.8535765904 +32 40 07.522947732   16.4   16.15   DBAZ4 44 1
49 QSO B1048+342 Sy1 10 51 43.8916339296 +33 59 26.683392840   17.11 16.79     ~ 198 0
50 PG 1049-005 Sy1 10 51 51.4474066944 -00 51 17.707987476   15.98 15.78     ~ 179 0
51 Ton 52 QSO 11 04 06.9374984688 +31 41 11.527697760   17.46 17.26     ~ 45 0
52 QSO B1103-006 Sy1 11 06 31.7743074480 -00 52 52.380450264   16.39 16.46     ~ 226 1
53 Ton 1388 Sy1 11 19 08.6786220240 +21 19 17.987085948   14.91 14.80     ~ 466 0
54 IC 2746 Sy2 11 21 47.1179115936 +11 44 18.909849876   15.38 14.93     ~ 218 0
55 QSO B1120-272 QSO 11 23 02.2875547152 -27 30 04.264832952     16.8     ~ 9 0
56 2MASS J11243917+4201450 Sy1 11 24 39.1797883104 +42 01 45.014547252   16.45 16.28     ~ 157 0
57 HE 1125-3028 QSO 11 27 31.8118748328 -30 44 45.688753644     16.3     ~ 9 0
58 ATO J178.4553+11.4751 Sy1 11 53 49.2707664888 +11 28 30.403025688   16.87 16.71     ~ 125 0
59 HE 1157-2955 QSO 11 59 43.3607510688 -30 11 52.204369344     16.4     ~ 14 0
60 NGC 4051 Sy1 12 03 09.6101337312 +44 31 52.682601288   11.08 12.92 9.94   ~ 2165 1
61 QSO J1208+4540 QSO 12 08 58.0107013896 +45 40 35.421692952   16.00 15.70     ~ 189 0
62 NGC 4151 Sy1 12 10 32.5759813872 +39 24 21.063527532   12.18 11.48     ~ 3688 2
63 QSO B1222+023 QSO 12 25 18.4115713200 +02 06 56.637312912   17.88 17.66     ~ 35 0
64 Ton 1530 QSO 12 25 27.3983971728 +22 35 13.016712084   15.49 17.00     ~ 191 0
65 Ton 618 Bla 12 28 24.9659725464 +31 28 37.628987592   16.15 15.87 15.35   ~ 279 1
66 QSO B1248+401 QSO 12 50 48.3268288080 +39 51 39.458894760   16.62 16.19     ~ 137 0
67 Ton 133 QSO 12 51 00.3117034080 +30 25 41.879005428   16.2       ~ 38 0
68 LB 11408 QSO 12 53 17.5764589992 +31 05 50.628627492   17.20 17.00     ~ 63 0
69 QSO B1252+0200 QSO 12 55 19.7003060256 +01 44 12.243051420   16.29 16.14     ~ 52 0
70 QSO B1254+0443 QSO 12 56 59.9234909976 +04 27 34.411850136   16.53 16.25     ~ 157 0
71 [B68b] 201 QSO 12 59 48.7852053336 +34 23 22.627553928   17.05 16.79     ~ 100 0
72 LB 2522 Sy1 13 01 12.9250750776 +59 02 06.693816732   16.04 15.89     ~ 281 0
73 LEDA 45656 Sy1 13 09 47.0031619008 +08 19 48.212362524   16.04 15.89     ~ 389 0
74 Ton 1565 Sy1 13 12 17.7526981968 +35 15 21.086467128   15.45 15.64 14.2   ~ 277 1
75 QSO B1312+7837 QSO 13 13 21.3337086312 +78 21 53.836687152   16.4       ~ 12 0
76 Ton 156 QSO 13 21 15.8594008584 +28 47 19.492704528   16.88 16.69     ~ 102 0
77 2MASS J13234951+6541480 Sy1 13 23 49.5182430360 +65 41 48.164463600   16.01 15.84     ~ 173 0
78 QSO J1341+4123 QSO 13 41 00.7893930432 +41 23 14.130152880   17.04 16.76     ~ 130 0
79 QSO B1352+0106 QSO 13 54 58.6806746304 +00 52 10.898450652     16.0     ~ 76 0
80 Ton 182 Sy1 14 05 16.2178674936 +25 55 34.117540788   15.42 15.34     ~ 253 0
81 LEDA 50824 Sy1 14 13 48.3306274368 +44 00 14.003371296   14.99 14.99     ~ 384 0
82 LEDA 51016 Sy1 14 17 00.8224797456 +44 56 06.336360024   16.93 16.63     ~ 258 0
83 NVSS J142414+421401 Rad 14 24 14.5 +42 14 02           ~ 4 1
84 QSO B1425+606 QSO 14 26 56.1849081360 +60 25 50.813373324   16.82 16.54     ~ 142 0
85 Mrk 1383 Sy1 14 29 06.5720038632 +01 17 06.155007252   15.21 14.87     ~ 462 0
86 Mrk 478 Sy1 14 42 07.4714418744 +35 26 22.938625500   14.91 14.58     ~ 533 0
87 2MASS J14464593+4035057 Sy1 14 46 45.9392259288 +40 35 05.797233636   16.28 16.11     ~ 293 0
88 QSO B1521+1009 QSO 15 24 24.5234088744 +09 58 29.087917572   15.74 16.2     ~ 136 0
89 Mrk 486 Sy1 15 36 38.4011947776 +54 33 33.215039244   15.21 14.78     ~ 275 0
90 QSO B1542+5408 QSO 15 43 59.4395014128 +53 59 03.147801000   17.19 17.10     ~ 94 0
91 LEDA 97534 Sy2 15 45 59.0969894160 +27 06 29.518422912     16.3     ~ 23 0
92 LB 906 QSO 15 52 02.4005214816 +20 14 01.588323012   16.9 17.12     ~ 49 0
93 QSO B1603+3820 QSO 16 04 55.3999673952 +38 12 01.628642808   16.37 15.99     ~ 57 0
94 Mrk 877 Sy1 16 20 11.2799789400 +17 24 27.515242152   15.79 15.39     ~ 272 0
95 QSO J1626+6426 QSO 16 26 45.6720635616 +64 26 55.026430800     15.8     ~ 32 0
96 QSO B1628+380 QSO 16 30 13.5767665728 +37 58 21.733251600   17.87 17.62     ~ 42 0
97 QSO B1630+3744 QSO 16 32 01.1117931960 +37 37 49.980505332   16.50 16.30     ~ 175 0
98 QSO B1634+7037 QSO 16 34 28.9917184368 +70 31 32.393436960   14.90 14.66     ~ 268 0
99 HS 1700+6416 QSO 17 01 00.6194059368 +64 12 09.118892376   16.39 16.17     ~ 368 0
100 IRAS 17002+5153 Sy1 17 01 24.8265469104 +51 49 20.447878836   15.49 15.12     ~ 385 0
101 QSO J1712+5755 QSO 17 12 27.7465195944 +57 55 06.895257456   17.75 17.53     ~ 43 0
102 QSO B1750+5046 QSO 17 51 16.6292203440 +50 45 38.789268912   14.997 15.097     ~ 26 0
103 NGC 6814 Sy1 19 42 40.5862186152 -10 19 25.108718844   15.33 14.21 11.7 11.3 ~ 807 0
104 QSO B1946+770 QSO 19 44 54.8532392016 +77 05 52.673448048     15.8     ~ 152 0
105 QSO B2103+1843 QSO 21 06 08.5638004824 +18 55 51.821506920     16.8     ~ 6 0
106 2MASS J21145258+0607423 Sy1 21 14 52.5774985320 +06 07 42.433198104   16.06 15.77     ~ 212 0
107 Mrk 1513 Sy1 21 32 27.8162556672 +10 08 19.252365396   14.92 14.64     ~ 611 0
108 QSO B2140+2403 QSO 21 42 48.4634200176 +24 17 20.043090420   16.8       ~ 6 0
109 EC 22004-1816 HS* 22 03 11.5438329552 -18 01 43.957998480       15.60   sdO 15 1
110 Mrk 304 Sy1 22 17 12.2637639888 +14 14 20.917852980   15.02 14.66     ~ 355 0
111 NGC 7469 Sy1 23 03 15.6 +08 52 26 12.60 13.00 12.34     ~ 2095 3
112 LEDA 70504 Sy1 23 07 02.9147133288 +04 32 57.101475624   16.32 15.50     ~ 117 0
113 [VV2000] J233944.6+190152 QSO 23 39 44.7588416928 +19 01 50.961937620   17.0       ~ 10 0
114 [VV96] J234313.6-464003 QSO 23 43 13.5844609152 -46 40 02.985365892   16.4 16.4     ~ 6 0
115 [VV96] J234347.0-440719 QSO 23 43 46.9576016592 -44 07 19.152759612   16.5 16.5     ~ 6 0
116 [VV96] J234640.5-461230 QSO 23 46 40.6001055168 -46 12 30.113800452   16.4 16.4     ~ 6 0
117 QSO B2347-4342 QSO 23 50 34.2593744544 -43 25 59.683985652   16.3 16.3     ~ 170 0

To bookmark this query, right click on this link: simbad:objects in 2007AJ....133..303C and select 'bookmark this link' or equivalent in the popup menu