2008A&A...488...73T


Query : 2008A&A...488...73T

2008A&A...488...73T - Astronomy and Astrophysics, volume 488, 73-81 (2008/9-2)

Variability-selected active galactic nuclei from supernova search in the Chandra Deep Field South.

TREVESE D., BOUTSIA K., VAGNETTI F., CAPPELLARO E. and PUCCETTI S.

Abstract (from CDS):

Variability is a property shared by virtually all active galactic nuclei (AGNs), and was adopted as a criterion for their selection using data from multi epoch surveys. Low Luminosity AGNs (LLAGNs) are contaminated by the light of their host galaxies, and cannot therefore be detected by the usual colour techniques. For this reason, their evolution in cosmic time is poorly known. Consistency with the evolution derived from X-ray detected samples has not been clearly established so far, also because the low luminosity population consists of a mixture of different object types. LLAGNs can be detected by the nuclear optical variability of extended objects. Several variability surveys have been, or are being, conducted for the detection of supernovae (SNe). We propose to re-analyse these SNe data using a variability criterion optimised for AGN detection, to select a new AGN sample and study its properties. We analysed images acquired with the wide field imager at the 2.2 m ESO/MPI telescope, in the framework of the STRESS supernova survey. We selected the AXAF field centred on the Chandra Deep Field South where, besides the deep X-ray survey, various optical data exist, originating in the EIS and COMBO-17 photometric surveys and the spectroscopic database of GOODS. We obtained a catalogue of 132 variable AGN candidates. Several of the candidates are X-ray sources. We compare our results with an HST variability study of X-ray and IR detected AGNs, finding consistent results. The relatively high fraction of confirmed AGNs in our sample (60%) allowed us to extract a list of reliable AGN candidates for spectroscopic follow-up observations.

Abstract Copyright:

Journal keyword(s): surveys - galaxies: active - galaxies: quasars: general - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/488/73): table2.dat>

Nomenclature: Table 2: [TBV2008] NNN (Nos 1-132).

Simbad objects: 136

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Number of rows : 136
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 [TBV2008] 31 QSO 03 31 11.3796155208 -27 41 32.122746168 20.30 20.96 20.62 20.57   ~ 3 0
2 [ABP2001] J033113.03-275055.5 G 03 31 13.03 -27 50 55.5 23.67 22.55 21.78 20.66   ~ 2 1
3 [LBA2005] 4 G 03 31 14.287 -27 47 06.86 23.53 23.57 23.06 22.89   ~ 6 0
4 [TBV2008] 17 ? 03 31 14.50 -28 10 54.7     19.93     ~ 1 0
5 [VV2010] J033115.0-275519 QSO 03 31 15.0478175448 -27 55 18.859833948 21.19 21.74 21.21 20.84   ~ 29 0
6 [TBV2008] 7 * 03 31 16.3479783192 -27 57 35.012498148 20.15 19.47 19.20 18.96   ~ 2 0
7 [WDK2001] 43124 EmG 03 31 16.680 -27 43 29.18 20.34 19.43 19.07 18.78   ~ 4 0
8 [TBV2008] 79 ? 03 31 17.07 -28 08 20.5     22.45     ~ 1 0
9 [LBA2005] 12 QSO 03 31 18.690 -27 41 21.38 22.18 22.75 21.78 21.62   ~ 9 0
10 [VTU2006] 356 QSO 03 31 20.75 -27 56 49.0 21.11 20.87 20.88 20.691   ~ 12 0
11 CXOECDFS J033121.4-280450 QSO 03 31 21.43 -28 04 50.7 22.87 21.73 21.97 21.62   ~ 8 0
12 [WDK2001] 49662 G 03 31 24.180 -27 40 19.45 23.62 23.56 22.59 22.38   ~ 2 0
13 [LBA2005] 54 QSO 03 31 27.77 -28 00 51.1 21.54 21.78 21.76 21.72   ~ 16 0
14 EIS J033128.61-280759.0 ? 03 31 28.61 -28 07 58.6     22.63     ~ 1 0
15 [WDK2001] 24036 G 03 31 28.83 -27 52 27.5 23.95 23.36 22.81 22.94   ~ 1 0
16 [TBV2008] 59 ? 03 31 29.41 -28 10 27.4     21.87     ~ 1 0
17 [WDK2001] 52868 G 03 31 34.18 -27 38 46.1 23.62         ~ 1 0
18 CXOECDFS J033135.4-280315 QSO 03 31 35.43 -28 03 15.9 22.13 21.73 21.39 20.95   ~ 18 0
19 CXOECDFS J033135.7-275134 QSO 03 31 35.78 -27 51 34.6 22.41 21.87 22.15 21.86 21.68 ~ 28 0
20 COMBO J0331363-280150 QSO 03 31 36.250 -28 01 49.80 22.20 21.80 22.55 21.79   ~ 15 0
21 [LBA2005] 119 QSO 03 31 40.06 -27 39 18.0 23.10 23.17 22.93 23.10   ~ 12 0
22 CXOYECDF J033144.1-280500 X 03 31 44.13 -28 05 00.6 23.68 22.64 22.14 21.50   ~ 7 0
23 EIS J033144.22-280714.4 ? 03 31 44.21 -28 07 14.1     22.90     ~ 1 0
24 [RPF2007] EIS J033147.90-274831.2 EmG 03 31 47.90 -27 48 31.2 23.88 23.99 23.42 22.853 22.72 ~ 4 0
25 [LBX2017] 21 AGN 03 31 47.969 -27 50 45.33 23.85 23.95 24.00 23.74 23.32 ~ 25 0
26 [LBX2017] 26 QSO 03 31 49.382 -27 46 34.00 23.26 22.66 22.46 22.38 22.23 ~ 31 0
27 [DSS2017] 518 AGN 03 31 49.53 -27 43 19.5 23.16 22.89 22.43 22.07 21.65 ~ 27 0
28 [TBV2008] 90 SN* 03 31 49.98 -28 09 41.6     22.91     ~ 2 0
29 2XMM J033150.9-274116 QSO 03 31 50.95 -27 41 16.0 23.19 22.570 22.67 22.256   ~ 25 0
30 [WDK2001] 51258 G 03 31 51.01 -27 39 33.4 23.99 23.71 23.65 23.38   ~ 1 0
31 [LBA2005] 199 QSO 03 31 51.78 -28 00 25.6 22.88 22.58 22.38 22.53   ~ 16 0
32 CXOECDFS J033151.8-280555 X 03 31 51.88 -28 05 55.4 22.76   22.46 22.34   ~ 4 0
33 [TBV2008] 15 EmG 03 31 54.67 -28 10 36.0     19.88     ~ 6 0
34 [DSS2017] 1429 QSO 03 31 56.85 -28 01 49.1 22.57 22.21 22.37 21.82   ~ 19 0
35 [WDK2001] 3111 G 03 31 58.13 -28 02 41.5 23.02 21.57 20.63 19.73   ~ 2 0
36 EIS J033159.53-275021.6 G 03 31 59.53 -27 50 21.7 23.90 23.7330 23.6600 23.5267 23.8415 ~ 6 0
37 CXOCDFS J033200.4-274320 QSO 03 32 00.37 -27 43 20.0 22.76 22.7055 22.335 22.1283 22.2135 ~ 55 0
38 [TBV2008] 53 ? 03 32 01.18 -28 08 54.8     21.74     ~ 1 0
39 [VV2006] J033201.6-274327 QSO 03 32 01.59 -27 43 27.3 24.86 24.5724 24.07 23.405 23.9921 ~ 48 0
40 [TBV2008] 117 ? 03 32 02.43 -28 10 47.3     23.75     ~ 1 0
41 BLAST J033203-281015 QSO 03 32 03.900 -28 10 15.71     21.93     ~ 4 0
42 [VTU2006] 273 G 03 32 05.23 -28 04 15.1 22.51 22.01 21.50 21.08   ~ 11 0
43 [LBA2005] 299 G 03 32 07.33 -28 04 30.9     23.36 23.36   ~ 7 0
44 [VV2006] J033208.7-274735 QSO 03 32 08.6729857488 -27 47 34.647814356 19.78 19.4713 19.11 18.665 18.6210 ~ 89 0
45 [TBV2008] 100 ? 03 32 08.92 -28 09 18.7     23.15     ~ 1 0
46 [VV2006] J033209.5-274807 QSO 03 32 09.4575891792 -27 48 07.049493144 22.94 21.4745 21.07 20.422 20.4857 ~ 62 0
47 2XMM J033210.9-274415 Sy1 03 32 10.91 -27 44 15.1 23.35 22.500 22.882 22.50 22.3707 ~ 80 0
48 2MASS J03321178-2809116 EmG 03 32 11.78 -28 09 11.6     20.03     ~ 3 0
49 EIS J033211.85-280616.5 ? 03 32 11.83 -28 06 16.3 21.50   20.68 20.35   ~ 1 0
50 [VV2006] J033216.2-273931 QSO 03 32 16.2096967968 -27 39 30.684107772 20.74 20.29 20.03 19.72 19.66 ~ 49 0
51 ACS-GC 90042334 AGN 03 32 17.15 -27 43 03.6 23.16 22.5303 22.1603 21.068 20.8398 ~ 85 0
52 CXOECDFS J033220.3-280214 QSO 03 32 20.34 -28 02 14.8 21.03 21.17 20.76 20.73   ~ 22 0
53 [BLT2007] 71629 G 03 32 21.0037 -27 40 29.734 23.69 23.5402 23.62 23.04 23.1221 ~ 6 0
54 [WDK2001] 51796 G 03 32 21.60593 -27 39 21.9686 24.41 23.701 22.77 23.384   ~ 3 0
55 [VV2006] J033226.5-274036 QSO 03 32 26.4998939520 -27 40 35.910988680 20.34 20.0691   20.091 19.7666 ~ 74 0
56 [VV2006] J033227.0-274105 QSO 03 32 27.0132796944 -27 41 05.357500044 19.93 19.3746   19.003 19.1163 ~ 88 0
57 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 2045 1
58 NAME GOODS Southern Field reg 03 32 28.0 -27 48 30           ~ 1285 1
59 EIS J033228.65-273846.8 EmG 03 32 28.6360 -27 38 46.479 24.32 24.2977 24.0183 23.5691 23.7150 ~ 9 0
60 2XMM J033229.9-274528 Sy1 03 32 29.976 -27 45 29.77 21.66 21.1307 21.33 21.298 21.1036 ~ 75 1
61 2dFGRS TGS243Z016 EmG 03 32 29.9856891480 -27 44 05.377841988 19.78 18.2213 17.419 17.236 17.0114 ~ 64 0
62 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 746 0
63 [VTU2006] 485 QSO 03 32 30.1 -28 00 20 22.64 22.08 21.86 22.19 21.74 ~ 23 0
64 EIS J033231.81-280710.6 EmG 03 32 31.78 -28 07 10.4     20.84     ~ 2 0
65 ATCDFS J033232.04-280310.2 QSO 03 32 32.0096640312 -28 03 10.072326168 19.65 19.85 19.82 19.92   ~ 30 0
66 [LBA2005] 400 QSO 03 32 32.26 -28 03 28.4 21.85 21.89 21.82 21.58   ~ 15 0
67 EIS J033232.52-273902.6 G 03 32 32.4994 -27 39 02.355 25.41 24.0831 23.3324 22.8918 22.2998 ~ 6 0
68 DES J033234.58-280314.1 QSO 03 32 34.5833205456 -28 03 14.171941368 20.91 20.30 20.20 20.08   ~ 5 0
69 [TBV2008] 102 ? 03 32 34.92 -28 09 19.7     23.17     ~ 1 0
70 2MASX J03323506-2755331 EmG 03 32 35.022 -27 55 32.98 18.58 17.7215 16.568 16.38 15.848 ~ 40 0
71 [VTU2006] 481 QSO 03 32 35.36 -28 00 41.6 24.58 24.45 24.07 23.72   ~ 11 0
72 MUSE-WIDE 123043172 EmG 03 32 35.3661 -27 49 20.751 22.70 23.8205 23.7816 23.5097 23.1499 ~ 15 0
73 DES J033237.30-280847.2 QSO 03 32 37.3023648696 -28 08 47.206029552     20.50     ~ 7 0
74 ACS-GC 90043401 QSO 03 32 38.1232741056 -27 39 45.158278032 20.89 20.9342 20.511 20.4095 20.6297 ~ 66 0
75 CXOCDFS J033239.1-275917 AGN 03 32 38.92 -27 59 18.9 23.33 23.2152 22.5759 22.35 21.3885 ~ 30 0
76 [VV2006] J033239.1-274602 QSO 03 32 39.0897389184 -27 46 02.044213860 21.11 21.413 21.157 20.68 20.812 ~ 77 0
77 [VV2006] J033241.9-275203 QSO 03 32 41.84 -27 52 02.3   24.3501 23.03 22.529 22.4031 ~ 64 1
78 ZFOURGE CDFS 9837 EmG 03 32 42.01190 -27 50 51.8914 25.06 24.075 24.06 23.802   ~ 10 0
79 COMBO J0332433-274914 QSO 03 32 43.25 -27 49 14.4 24.17 22.4055 22.6983 22.984 22.5427 ~ 71 0
80 EIS J033244.16-273942.3 G 03 32 44.140 -27 39 41.89 19.95 19.03 18.48 18.10   ~ 6 0
81 [TBV2008] 39 QSO 03 32 44.1894557328 -28 10 28.665292656     21.07     ~ 5 0
82 LEDA 747555 AGN 03 32 45.96439 -27 57 45.3856 18.83 17.699 17.30 17.054 16.58 ~ 33 0
83 DES J033246.76-280846.9 QSO 03 32 46.7662525176 -28 08 46.899830724     19.21     ~ 5 0
84 [TBV2008] 85 ? 03 32 48.57 -28 09 50.5     22.84     ~ 1 0
85 [TBV2008] 110 ? 03 32 49.24 -28 09 02.9     23.54     ~ 1 0
86 CXOYECDF J033249.8-280515 G 03 32 49.81 -28 05 15.0 23.21   22.64 22.41   ~ 7 0
87 LEDA 745916 G 03 32 52.6 -28 05 38     23.27     ~ 2 0
88 EIS J033253.90-275354.3 EmG 03 32 53.90 -27 53 54.0 20.62 19.66 19.13 18.75   ~ 8 0
89 2XMM J033259.0-274340 QSO 03 32 59.05 -27 43 39.7 22.26 21.90 21.61 20.973 20.41 ~ 38 0
90 [VV2006] J033259.8-274749 QSO 03 32 59.8499816688 -27 47 48.381054396 22.29 22.0936 21.6616 21.9181 21.9483 ~ 45 0
91 COMBO J0333009-275522 QSO 03 33 00.7683095688 -27 55 20.791827228 22.73 22.428 22.05 22.099 21.64 ~ 28 0
92 [WDK2001] 20787 SN* 03 33 05.30 -27 54 09.2 22.90 22.21 21.51 21.19   ~ 2 0
93 [LBA2005] 567 QSO 03 33 06.25 -28 00 55.5 22.40 22.19 21.72 21.61   ~ 13 0
94 [TBV2008] 46 ? 03 33 06.78 -28 09 14.3     21.42     ~ 1 0
95 [TBV2008] 45 ? 03 33 07.64 -28 09 51.5     21.27     ~ 1 0
96 2MASS J03330935-2807257 * 03 33 09.3598059264 -28 07 25.813521408     17.13     ~ 1 0
97 [LBA2005] 596 QSO 03 33 09.7176573864 -27 56 14.244217548 20.55 20.15 20.11 20.24   ~ 18 0
98 ATCDFS9 J033310.19-274842.2 QSO 03 33 10.21 -27 48 42.2 24.27 23.866 23.14 22.97 22.00 ~ 47 0
99 [LBA2005] 601 QSO 03 33 10.61 -27 57 48.5 21.68 21.47 21.45 21.33   ~ 21 0
100 [DSS2017] 1710 QSO 03 33 12.60 -27 55 51.6 21.92 20.82 20.62 20.40 19.99 ~ 29 0
101 [DSS2017] 82006 QSO 03 33 14.83 -27 57 49.1 25.35 23.70 23.96 23.70   ~ 12 0
102 [TBV2008] 95 ? 03 33 15.75 -28 08 55.2     22.96     ~ 1 0
103 [LBA2005] 631 QSO 03 33 16.0 -28 01 31 22.38 22.86 22.52 22.84   ~ 13 0
104 2MASS J03331606-2739029 * 03 33 16.0736545896 -27 39 02.931102900 23.26 20.96 19.91 18.92   ~ 3 0
105 [HSN2014] 66507 AGN 03 33 16.45 -27 50 40.0 21.25 19.64 19.11 18.60 18.02 ~ 36 0
106 2MASS J03331899-2741450 * 03 33 19.0009290408 -27 41 45.165542100 19.53 17.55 17.02 16.51   ~ 2 0
107 EIS J033319.06-280803.0 ? 03 33 19.04 -28 08 02.5     21.99     ~ 1 0
108 EIS J033319.78-280627.8 ? 03 33 19.78 -28 06 27.4 22.58   22.01 21.09   ~ 1 0
109 [DSS2017] 1712 QSO 03 33 20.0179477104 -27 59 12.631778484 21.80 21.26 21.26 20.966   ~ 15 0
110 2MASX J03332060-2749107 AGN 03 33 20.6036338704 -27 49 10.267218948 19.12 17.471 16.68 16.264   ~ 26 0
111 CXOECDFS J033321.0-273911 QSO 03 33 21.0822007176 -27 39 12.027754800 20.50 20.39 20.39 20.28   ~ 16 0
112 [WDK2001] 24466 G 03 33 21.222 -27 52 19.43 23.60 23.48 23.59 23.49   ~ 2 0
113 CXOECDFS J033322.7-275523 QSO 03 33 22.7989953240 -27 55 23.961944388 20.94 21.04 20.63 20.72   ~ 18 0
114 [LBA2005] 679 QSO 03 33 22.81 -28 03 12.9 23.15 22.60 22.71 22.47   ~ 14 0
115 [WDK2001] 30008 G 03 33 22.968 -27 49 37.25 23.64 23.48 23.37 23.69   ~ 2 0
116 COMBO J0333263-275830 QSO 03 33 26.2521932928 -27 58 29.968571352 20.58 20.69 20.65 20.77   ~ 20 0
117 [LBA2005] 702 QSO 03 33 26.34 -27 48 31.0 23.75 24.06 23.31 23.28   ~ 9 0
118 CXOECDFS J033328.9-275641 QSO 03 33 28.9388448360 -27 56 41.307154548 20.72 20.25 20.12 20.13   ~ 34 0
119 [VTU2006] 403 QSO 03 33 29.21 -27 59 26.5 21.40 21.37 20.95 20.776   ~ 22 0
120 [TBV2008] 54 ? 03 33 30.93 -28 10 55.5     21.75     ~ 1 0
121 [HGD2002] EIS J033331.13-275929.0 Q? 03 33 31.13 -27 59 29.0 23.96 23.97 23.72 23.79   ~ 2 0
122 CXOECDFS J033331.3-275634 QSO 03 33 31.3837275984 -27 56 34.486512324 20.72 20.15 20.07 19.93   ~ 15 0
123 [TBV2008] 16 * 03 33 32.5248526776 -27 38 44.310300360 23.03 20.77 19.95 19.15   ~ 2 0
124 XMMCDFS J033332.5-274902 QSO 03 33 32.8 -27 49 08 22.23 21.59 22.09 21.61   ~ 15 0
125 [TBV2008] 107 G 03 33 35.25 -27 51 57.8 24.28 23.85 23.30 22.84   ~ 1 0
126 [LBA2005] 741 EmG 03 33 35.55 -27 39 34.9 23.00 22.51 21.87 20.90   ~ 11 0
127 [WDK2001] 33178 G 03 33 35.97 -27 48 03.7 24.32 23.85 23.18 22.86   ~ 1 0
128 EIS J033337.63-280600.6 ? 03 33 37.58 -28 06 00.2     23.62     ~ 1 0
129 EIS J033338.87-274016.9 * 03 33 38.86 -27 40 16.4 21.53 19.78 19.29 18.80   ~ 2 0
130 EIS J033338.94-274205.7 ? 03 33 38.93 -27 42 05.3 22.63 22.29 21.60 20.98   ~ 1 0
131 EIS J033339.09-275256.4 ? 03 33 39.09 -27 52 56.1 24.19 23.79 22.58 22.87   ~ 1 0
132 EIS J033339.14-273852.1 ? 03 33 39.15 -27 38 51.3 23.23 22.98 22.47 21.60   ~ 1 0
133 2MASS J03333927-2810013 NIR 03 33 39.3243453336 -28 10 01.382253024     22.92     ~ 1 0
134 EIS J033339.81-275647.7 G 03 33 39.790 -27 56 47.40 23.92 23.21 22.98 22.04   ~ 2 0
135 [TBV2008] 119 ? 03 33 40.03 -28 09 08.3     23.83     ~ 1 0
136 SA 57- reg 13 08 38 +29 23.1           ~ 179 0

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2023.09.24-08:57:53

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