2008A&A...487..539W


Query : 2008A&A...487..539W

2008A&A...487..539W - Astronomy and Astrophysics, volume 487, 539-554 (2008/8-4)

A slitless spectroscopic survey for quasars near quasars.

WORSECK G., WISOTZKI L. and SELMAN F.

Abstract (from CDS):

We present the results of the ``Quasars near Quasars'' (QNQ) survey, a CCD-based slitless spectroscopic survey for faint V≲22 quasars at 1.7≲z≲3.6 on 18 26.2'x33.5' fields centred on bright quasars at 2.76<z<4.69. In total 169 quasar candidates with emission lines were selected from the extracted flux-calibrated spectra on the basis of well-defined automatic selection criteria followed by visual inspection and verification. With follow-up spectroscopy of 81 candidates that were likely to reside at z>1.7 we were able to confirm 80 new quasars at 0.580≤z≤3.586 on 16 of our fields. 64 of the newly discovered quasars are located at z>1.7. The overall high success rate implies that most of the remaining 88 candidates are quasars as well, although the majority of them likely resides at z<1.7 on the basis of the observed line shapes and strengths. Due to the insufficient depth of the input source catalogues needed for extraction of the slitless spectra our survey is not well defined in terms of limiting magnitude for faint 2.5≲z≲3.6 quasars whose Lyα emission is detectable well beyond V=22, albeit at a continuum S/N≲1. While not useful for characterising the evolving space density of quasars, our sample provides many new closely spaced quasar sightlines around intensely studied quasars for further investigations on the three-dimensional distribution of the intergalactic medium.

Abstract Copyright:

Journal keyword(s): surveys - galaxies: quasars: general - galaxies: intergalactic medium - cosmology: large-scale structure of Universe

VizieR on-line data: <Available at CDS (J/A+A/487/539): fields.dat qnqqsos.dat qnqcand.dat>

Nomenclature: Table 2: QNQ JHHMMm+DDMMA N=80. Table B1: QNQC JHHMMSS.s+DDMMSS N=88.

Simbad objects: 198

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Number of rows : 198
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 QNQ J00025-2558 QSO 00 02 34.8496348710 -25 58 43.684157894   20.26       ~ 5 0
2 QNQC J000239.4-261139 Q? 00 02 39.4 -26 11 39     22.0     ~ 1 0
3 QNQ J00028-2547 QSO 00 02 53.8793864331 -25 47 43.304951269   19.84       ~ 2 0
4 QNQC J000256.4-260956 Q? 00 02 56.4 -26 09 56     21.2     ~ 1 0
5 QNQC J000256.8-254703 Q? 00 02 56.8 -25 47 03     21.4     ~ 1 0
6 2XMM J000257.9-255749 Q? 00 02 57.8968495250 -25 57 50.749804907   20.89 21.1 20.60   ~ 2 0
7 QSO J0003-2603 QSO 00 03 22.9530051057 -26 03 18.306624161   18 17.53     ~ 273 0
8 2XMM J000331.8-261053 QSO 00 03 31.8993832024 -26 10 55.118973405   21.61   21.12   ~ 3 0
9 QNQ J00035-2551 QSO 00 03 33.8641109060 -25 51 49.637176588   20.99       ~ 2 0
10 QNQ J00038-2617 QSO 00 03 51.4 -26 17 37   22.09       ~ 2 0
11 QNQC J000404.9-254841 Q? 00 04 04.9 -25 48 41     22.5     ~ 1 0
12 2XMM J000405.3-260342 QSO 00 04 05.3714523561 -26 03 42.375977963   20.54   20.45   ~ 3 0
13 QNQC J000408.5-255024 Q? 00 04 08.5 -25 50 24     21.5     ~ 1 0
14 QNQ J00041-4158 QSO 00 04 09.0 -41 58 32   20.36       ~ 2 0
15 QNQ J00043-4151 QSO 00 04 19.0390786300 -41 51 10.749271171   19.84       ~ 2 0
16 QNQC J000422.1-255830 Q? 00 04 22.1 -25 58 30     20.6     ~ 1 0
17 QNQ J00045-4201 QSO 00 04 32.7846303814 -42 01 33.728957001   20.35       ~ 2 0
18 QSO B0002-422 QSO 00 04 48.2718823544 -41 57 28.150311306   17.44 17.21     ~ 156 0
19 QNQC J000531.8-415410 Q? 00 05 31.8 -41 54 10     20.6     ~ 1 0
20 QNQC J005709.5-265900 Q? 00 57 09.5 -26 59 00     20.8     ~ 1 0
21 QNQ J00576-2626 QSO 00 57 36.2691162960 -26 26 57.616151073   20.73       ~ 2 0
22 QNQC J005750.3-263910 Q? 00 57 50.3 -26 39 10     20.6     ~ 1 0
23 QSO B0055-26 QSO 00 57 58.0249885733 -26 43 14.753717865   17.90 17.47 17.99   ~ 138 1
24 QNQC J005805.6-265755 Q? 00 58 05.6 -26 57 55     23.0     ~ 1 0
25 QNQ J00582-2649 QSO 00 58 13.9 -26 49 19   22.02       ~ 2 0
26 QNQ J00583-2626 QSO 00 58 19.5149627086 -26 26 13.250095421   21.00       ~ 2 0
27 QNQC J005840.0-263314 Q? 00 58 40.0 -26 33 14     19.5     ~ 1 0
28 QNQC J005847.4-264308 Q? 00 58 47.4 -26 43 08     21.0     ~ 1 0
29 LBQS 0302-0019 QSO 03 04 49.8591748182 -00 08 13.537401746   18.08 17.80 17.5   ~ 240 0
30 [VV2006] J030515.6-001615 QSO 03 05 15.6018612693 -00 16 14.269272117   20.05 20.00 19.9   ~ 16 0
31 [VV2006] J030516.8+000045 QSO 03 05 16.956 +00 00 43.58   21.79 21.32 21.3   ~ 5 0
32 NAME Marano1 Field reg 03 15.2 -55 14           ~ 19 0
33 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1890 1
34 NAME Extended Chandra Deep Field South reg 03 32 30.0 -27 48 20           ~ 662 0
35 QNQC J034856.4-380847 Q? 03 48 56.4 -38 08 47     21.2     ~ 1 0
36 QNQ J03490-3825 QSO 03 49 02.5945048893 -38 25 21.709472946   20.52       ~ 2 0
37 QNQ J03490-3812 QSO 03 49 03.6 -38 12 36   21.66       ~ 2 0
38 QNQC J034905.8-380146 Q? 03 49 05.8 -38 01 46     21.9     ~ 1 0
39 QNQ J03494-3814 QSO 03 49 24.3745346454 -38 14 34.236860453   19.60       ~ 2 0
40 QNQ J03494-3826 QSO 03 49 28.4128043956 -38 26 11.597081316   20.97       ~ 2 0
41 QNQ J03495-3806 QSO 03 49 32.6440091043 -38 06 45.174017800   20.86       ~ 3 0
42 QNQC J034933.3-381618 Q? 03 49 33.3 -38 16 18     19.5     ~ 1 0
43 QNQ J03496-3810 QSO 03 49 36.3130594867 -38 10 02.141947343   20.87       ~ 2 0
44 QNQ J03496-3821 QSO 03 49 39.3392568033 -38 21 34.116151326   19.43       ~ 2 0
45 QSO B0347-383 QSO 03 49 43.6605705480 -38 10 30.834942758     17.3     ~ 185 0
46 QNQC J034945.9-380150 Q? 03 49 45.9 -38 01 50     20.9     ~ 1 0
47 QNQC J035003.7-375855 Q? 03 50 03.7 -37 58 55     22.0     ~ 1 0
48 QNQ J03500-3820 QSO 03 50 04.2874391922 -38 20 51.209773842   20.03       ~ 2 0
49 QNQC J035008.5-375359 Q? 03 50 08.5 -37 53 59     20.8     ~ 1 0
50 QNQ J03503-3800 QSO 03 50 20.0243393951 -38 00 03.377559873   20.67       ~ 2 0
51 QNQC J035039.4-382425 Q? 03 50 39.4 -38 24 25     19.4     ~ 1 0
52 QNQ J03508-3812 QSO 03 50 50.7291680361 -38 12 39.201583215   20.86       ~ 2 0
53 QNQ J04061-4401 QSO 04 06 10.4031571239 -44 01 00.071051115   19.35       ~ 2 0
54 QNQC J040634.9-440757 Q? 04 06 34.9 -44 07 57     19.6     ~ 1 0
55 QNQC J040637.7-442152 Q? 04 06 37.7 -44 21 52     21.1     ~ 1 0
56 QNQC J040706.6-442223 Q? 04 07 06.6 -44 22 23     20.5     ~ 1 0
57 QSO J0407-4410 QSO 04 07 18.0882243903 -44 10 13.989443935   17.6 17.6     ~ 89 0
58 QNQC J040735.1-440020 Q? 04 07 35.1 -44 00 20     18.8     ~ 1 0
59 QNQ J04075-4416 QSO 04 07 35.4 -44 16 04   21.75       ~ 2 0
60 QNQC J040744.2-440050 Q? 04 07 44.2 -44 00 50     19.8     ~ 1 0
61 QNQC J040816.1-442158 Q? 04 08 16.1 -44 21 58     20.5     ~ 1 0
62 QNQC J040822.8-441814 Q? 04 08 22.8 -44 18 14     21.5     ~ 1 0
63 QNQ J04084-4420 QSO 04 08 29.0 -44 20 14   22.88       ~ 2 0
64 QNQ J04212-3853 QSO 04 21 12.5047831104 -38 53 28.675021690   20.08       ~ 2 0
65 QNQC J042116.9-384010 Q? 04 21 16.9 -38 40 10     22.0     ~ 1 0
66 QNQ J04215-3854 QSO 04 21 32.1839645269 -38 54 50.634611560   19.49       ~ 2 0
67 QNQ J04215-3857 QSO 04 21 34.8 -38 57 03   22.23       ~ 2 0
68 QNQC J042145.7-385720 Q? 04 21 45.7 -38 57 20     21.6     ~ 1 0
69 QNQ J04217-3847 QSO 04 21 45.7213886552 -38 47 45.056041961   20.73       ~ 2 0
70 QNQC J042153.2-383256 Q? 04 21 53.2 -38 32 56     20.5     ~ 1 0
71 QSO J0422-3844 BLL 04 22 14.7829518039 -38 44 52.824921025   17.70 16.92 16.3   ~ 192 1
72 QNQ J04222-3829 QSO 04 22 17.3242025968 -38 29 33.436894408   20.91       ~ 2 0
73 QNQC J042222.0-385755 Q? 04 22 22.0 -38 57 55     21.5     ~ 1 0
74 QNQC J042258.9-384749 Q? 04 22 58.9 -38 47 49     20.8     ~ 1 0
75 QNQ J04229-3831 QSO 04 22 59.9871745688 -38 31 37.226230620   19.98       ~ 2 0
76 QNQ J04230-3853 QSO 04 23 01.1 -38 53 14   21.95       ~ 2 0
77 QNQC J052916.6-245655 Q? 05 29 16.6 -24 56 55     21.1     ~ 1 0
78 QNQC J052920.1-251337 Q? 05 29 20.1 -25 13 37     20.5     ~ 1 0
79 QNQC J052930.5-245305 Q? 05 29 30.5 -24 53 05     18.5     ~ 1 0
80 QNQC J052939.1-250148 Q? 05 29 39.1 -25 01 48     20.2     ~ 1 0
81 QNQC J052940.7-245927 Q? 05 29 40.7 -24 59 27     21.5     ~ 1 0
82 QNQC J052947.4-250426 Q? 05 29 47.4 -25 04 26     20.0     ~ 1 0
83 QSO B0528-2505 QSO 05 30 07.96279681 -25 03 29.8994010   18.17 17.34 17.7   ~ 406 0
84 QNQC J053015.5-250307 Q? 05 30 15.5 -25 03 07     21.1     ~ 1 0
85 QNQC J053039.7-245306 Q? 05 30 39.7 -24 53 06     21.9     ~ 1 0
86 QNQC J053043.2-250840 Q? 05 30 43.2 -25 08 40     21.4     ~ 1 0
87 QNQC J053048.2-250435 Q? 05 30 48.2 -25 04 35     20.6     ~ 1 0
88 QNQC J053115.3-251311 Q? 05 31 15.3 -25 13 11     21.0     ~ 1 0
89 HD 49798 HXB 06 48 04.7000758397 -44 18 58.432035331 6.758 8.017 8.287 8.391 8.543 sdO6 289 0
90 QNQ J09422-1117 QSO 09 42 13.6784527722 -11 17 37.459536068   20.10       ~ 2 0
91 QNQC J094219.2-105019 Q? 09 42 19.2 -10 50 19     20.9     ~ 1 0
92 QNQC J094223.0-110952 Q? 09 42 23.0 -11 09 52     19.1     ~ 1 0
93 QNQ J09424-1047 QSO 09 42 24.1691622923 -10 47 58.656623084   20.61       ~ 2 0
94 QNQC J094228.1-111403 Q? 09 42 28.1 -11 14 03     20.5     ~ 1 0
95 QNQC J094228.1-104719 Q? 09 42 28.1 -10 47 19     21.5     ~ 1 0
96 QNQ J09425-1048 QSO 09 42 30.5804825097 -10 48 51.036537862   19.80   19.1   ~ 3 0
97 QNQC J094233.4-112119 Q? 09 42 33.4 -11 21 19     20.5     ~ 1 0
98 QNQ J09427-1108 QSO 09 42 44.1437556435 -11 08 00.240476501   19.91       ~ 2 0
99 QNQ J09427-1121 QSO 09 42 44.4203063709 -11 21 38.856827870   20.99   19.6   ~ 3 0
100 QSO B0940-1050 QSO 09 42 53.5076745009 -11 04 25.929146122   16.96 16.6 16.6   ~ 89 0
101 QNQ J09430-1108 QSO 09 43 00.3 -11 08 06   21.03       ~ 2 0
102 QNQ J09434-1053 QSO 09 43 24.2098325268 -10 53 33.098807759   21.16   21.4   ~ 3 0
103 2MASS J09432461-1115260 Q? 09 43 24.6386299790 -11 15 25.715181405     17.6     ~ 1 0
104 QNQ J09435-1049 QSO 09 43 30.0468851316 -10 49 58.999525096   20.79   19.9   ~ 3 0
105 QNQC J094336.0-110129 Q? 09 43 36.0 -11 01 29     19.5     ~ 1 0
106 QNQC J094342.5-111730 Q? 09 43 42.5 -11 17 30     19.0     ~ 1 0
107 QNQ J09437-1109 QSO 09 43 42.6657304866 -11 09 47.824801723   21.00       ~ 2 0
108 QNQ J09437-1052 QSO 09 43 42.9871139597 -10 52 31.745246730   20.78   19.6   ~ 3 0
109 QNQ J09437-1057 QSO 09 43 45.1555878156 -10 57 58.822132026   20.64       ~ 2 0
110 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2320 0
111 GD 108 HS* 10 00 47.2462037648 -07 33 30.777365253 12.406 13.349 13.563 13.662 13.781 sdB 132 1
112 QNQ J10385-2317 QSO 10 38 31.5224023438 -23 17 55.530152157   21.28       ~ 2 0
113 QNQC J103833.6-232642 Q? 10 38 33.6 -23 26 42     19.9     ~ 1 0
114 QNQC J103836.2-231020 Q? 10 38 36.2 -23 10 20     21.9     ~ 1 0
115 2MASS J10385017-2258084 QSO 10 38 50.17 -22 58 08.4   19.63       ~ 2 0
116 QNQC J103903.6-225625 Q? 10 39 03.6 -22 56 25     19.9     ~ 1 0
117 QSO B1036-2257 QSO 10 39 09.5073121205 -23 13 26.400097195   18.0 18.0     ~ 40 0
118 QNQ J10399-2321 QSO 10 39 58.7623214909 -23 21 40.632147793   20.73       ~ 2 0
119 QNQC J111910.3-133139 Q? 11 19 10.3 -13 31 39     21.4     ~ 1 0
120 QNQ J11192-1334 QSO 11 19 12.366 -13 34 05.47   22.55       ~ 2 0
121 QNQC J111924.7-135152 Q? 11 19 24.7 -13 51 52     20.8     ~ 1 0
122 QNQC J111946.1-134157 Q? 11 19 46.1 -13 41 57     20.0     ~ 1 0
123 2MASS J11194673-1340471 QSO 11 19 46.6947500309 -13 40 47.029218424   18.32       ~ 2 0
124 QSO B1117-1329 QSO 11 20 10.3169512408 -13 46 25.945122237     18.00     ~ 51 0
125 QNQC J112028.1-133612 Q? 11 20 28.1 -13 36 12     20.5     ~ 1 0
126 QNQ J11205-1343 QSO 11 20 34.0752487490 -13 43 28.802298813   19.84       ~ 2 0
127 2MASS J11203730-1336039 Q? 11 20 37.3338198736 -13 36 04.301076406     18.6     ~ 1 0
128 QNQ J11208-1345 QSO 11 20 48.4920834484 -13 45 35.684177113   20.10       ~ 2 0
129 QNQC J112049.4-133422 Q? 11 20 49.4 -13 34 22     21.2     ~ 1 0
130 QNQC J120506.0-075537 Q? 12 05 06.0 -07 55 37     18.6     ~ 1 0
131 QNQC J120512.7-075926 Q? 12 05 12.7 -07 59 26     20.5     ~ 1 0
132 QSO B1202-074 QSO 12 05 23.12 -07 42 32.4     17.5     ~ 355 5
133 QNQ J12059-0754 QSO 12 05 55.3301427135 -07 54 33.730456581   20.40   19.04   ~ 3 0
134 QNQC J120601.9-073433 Q? 12 06 01.9 -07 34 33     21.6     ~ 1 0
135 QNQC J120602.2-074358 Q? 12 06 02.2 -07 43 58     20.0     ~ 1 0
136 QNQ J12061-0745 QSO 12 06 08.9051576415 -07 45 49.904041682   19.15       ~ 2 0
137 QNQC J120612.2-072814 Q? 12 06 12.2 -07 28 14     20.4     ~ 1 0
138 QNQ J12062-0727 QSO 12 06 14.2440946526 -07 27 41.194229501   20.46       ~ 2 0
139 QNQ J12111+0906 QSO 12 11 06.5913736507 +09 06 43.542593998   21.17 20.46     ~ 5 0
140 QNQC J121108.4+085707 Q? 12 11 08.4 +08 57 07     20.6     ~ 1 0
141 QSO B1209+0919 QSO 12 11 34.9529988214 +09 02 20.851330054   19.61 19.15     ~ 94 0
142 QNQ J12124+0851 QSO 12 12 29.0708228050 +08 51 58.529616893   19.61 19.39     ~ 7 0
143 QNQC J121234.8+085701 Q? 12 12 34.8 +08 57 01     20.5     ~ 1 0
144 NAME Chandra Deep Field-North reg 12 36.8 +62 13           ~ 630 0
145 HE 1250-0256 ? 12 50 00.0 -02 56 00           ~ 1 0
146 QSO B1451+123 QSO 14 54 18.5816006547 +12 10 53.905442682     18.6     ~ 76 0
147 QNQC J145508.6+121245 Q? 14 55 08.6 +12 12 45     20.5     ~ 1 0
148 QNQC J145514.6+115655 Q? 14 55 14.6 +11 56 55     21.5     ~ 1 0
149 QSO B1623+269 QSO 16 25 48.7980962644 +26 46 58.784817727   17.77 17.64     ~ 99 0
150 CD-30 17706 WD* 20 10 56.8485174654 -30 13 06.629141494 11.654 12.286 12.242 12.311 12.381 DA3.1 228 0
151 QNQ J21286-1528 QSO 21 28 40.4399151283 -15 28 16.040584455   19.79       ~ 2 0
152 QNQ J21291-1524A QSO 21 29 10.1 -15 24 45   21.81       ~ 2 0
153 QNQ J21291-1524B QSO 21 29 10.8559416440 -15 24 23.947894846   20.33   20.3   ~ 3 0
154 QSO B2126-15 QSO 21 29 12.17589777 -15 38 41.0413097   17.61 17.3 17.3   ~ 475 1
155 QNQC J212924.5-154820 QSO 21 29 24.3871426221 -15 48 21.292921243     18.5 18.20   ~ 3 0
156 QNQ J21294-1521 QSO 21 29 29.1866233766 -15 21 58.212698800   18.38       ~ 2 0
157 QNQ J21297-1536 QSO 21 29 46.7578381806 -15 36 52.366151718   20.50       ~ 2 0
158 QNQ J21301-1533 QSO 21 30 07.4741906326 -15 33 21.227771617   21.94   21.9   ~ 3 0
159 QNQC J213009.8-153633 Q? 21 30 09.8 -15 36 33     22.0     ~ 1 0
160 QNQC J213016.1-154153 Q? 21 30 16.1 -15 41 53     20.2     ~ 1 0
161 QNQC J213017.3-154324 Q? 21 30 17.3 -15 43 24     18.5     ~ 1 0
162 QNQC J214119.4-441256 Q? 21 41 19.4 -44 12 56     21.6     ~ 1 0
163 QNQC J214124.0-443301 QSO 21 41 23.9570381885 -44 33 01.187316076   20.27 21.0     ~ 2 0
164 LBQS 2138-4427 QSO 21 41 59.5010115549 -44 13 25.925906956   19.17 18.20     ~ 62 1
165 QSO B2139-4433 QSO 21 42 22.1692806884 -44 19 29.743549966   21.21 20.18     ~ 19 0
166 LBQS 2139-4434 QSO 21 42 25.7847067944 -44 20 18.353629202   18.83 16.64     ~ 44 0
167 QNQ J21434-4432 QSO 21 43 25.2758344979 -44 32 10.925330511   19.33       ~ 2 0
168 2MASS J21432617-4420367 Q? 21 43 26.1526604916 -44 20 36.303618413     18.2     ~ 1 0
169 QNQ J22454-6020 QSO 22 45 27.2286854134 -60 20 25.413425812   20.94       ~ 2 0
170 QNQ J22454-6011 QSO 22 45 29.4347278170 -60 11 17.332837471   19.36       ~ 2 0
171 QNQ J22455-6015 QSO 22 45 34.6651679173 -60 15 46.341613022   21.74       ~ 2 0
172 QNQC J224542.2-600645 Q? 22 45 42.2 -60 06 45     20.0     ~ 1 0
173 QNQC J224543.0-603049 Q? 22 45 43.0 -60 30 49     19.4     ~ 1 0
174 QNQC J224553.3-600659 Q? 22 45 53.3 -60 06 59     20.2     ~ 1 0
175 QNQ J22460-6024 QSO 22 46 01.2605970083 -60 24 57.603218890   21.25       ~ 2 0
176 QNQC J224602.9-603115 Q? 22 46 02.9 -60 31 15     21.0     ~ 1 0
177 QNQC J224612.7-600355 Q? 22 46 12.7 -60 03 55     21.9     ~ 1 0
178 QNQ J22463-6009 QSO 22 46 18.4989558713 -60 09 02.779070897   19.71       ~ 2 0
179 QNQC J224653.0-603046 Q? 22 46 53.0 -60 30 46     20.5     ~ 1 0
180 QSO J2246-6015 QSO 22 47 08.9261267635 -60 15 45.301367673           ~ 63 0
181 QNQC J224729.0-601443 Q? 22 47 29.0 -60 14 43     20.8     ~ 1 0
182 QNQC J224750.4-602117 Q? 22 47 50.4 -60 21 17     19.5     ~ 1 0
183 QNQ J22484-6002 QSO 22 48 29.2233632285 -60 02 19.832599193   20.97       ~ 2 0
184 QNQC J224837.7-601431 Q? 22 48 37.7 -60 14 31     21.4     ~ 1 0
185 QSO J2349-4338 QSO 23 49 34.5383401594 -43 38 08.683741228   20.21       ~ 4 0
186 QNQC J235001.9-431229 Q? 23 50 01.9 -43 12 29     18.6     ~ 1 0
187 QNQ J23502-4334 QSO 23 50 16.1850588586 -43 34 14.742611556   18.95       ~ 5 0
188 QSO J2350-4328 QSO 23 50 21.5587614537 -43 28 43.727578587   20.66       ~ 4 0
189 QNQ J23503-4317 QSO 23 50 21.9355632352 -43 17 30.171729778   21.94       ~ 3 0
190 QSO B2347-4342 QSO 23 50 34.2595236845 -43 25 59.680334378   16.3 16.3     ~ 161 0
191 QSO J2350-4319 QSO 23 50 44.9647323061 -43 19 26.033615977   19.90       ~ 3 0
192 QNQ J23507-4326 QSO 23 50 45.3930955363 -43 26 37.044242345   21.05       ~ 3 0
193 2MASS J23505478-4330424 QSO 23 50 54.8215855179 -43 30 42.307180120   18.23       ~ 6 0
194 QNQ J23510-4336 QSO 23 51 05.5230356626 -43 36 57.287176459   20.74       ~ 3 0
195 QNQC J235107.0-432246 QSO 23 51 07.08 -43 22 45.8     19.0     ~ 2 0
196 QSO J2351.1-4319 QSO 23 51 09.4608204065 -43 19 41.573051348   21.00       ~ 3 0
197 QNQ J23514-4339 QSO 23 51 25.5453579768 -43 39 03.046832216   21.57       ~ 3 0
198 QNQC J235140.8-431615 Q? 23 51 40.8 -43 16 15     20.9     ~ 1 0

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2021.07.31-19:06:33

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