2020ApJ...896...10B

Query : 2020ApJ...896...10B

2020ApJ...896...10B - Astrophys. J., 896, 10-10 (2020/June-2)

A search for optical AGN variability in 35,000 low-mass galaxies with the Palomar Transient Factory.

BALDASSARE V.F., GEHA M. and GREENE J.

Abstract (from CDS):

We present an analysis of the long-term optical variability for ∼50,000 nearby (z < 0.055) galaxies from the NASA-Sloan Atlas, 35,000 of which are low-mass (M* < 1010 M☉). We use difference imaging of Palomar Transient Factory (PTF) R-band observations to construct light curves with typical baselines of several years. We then search for subtle variations in the nuclear light output. We determine whether detected variability is AGN-like by assessing the fit quality to a damped random walk model. We identify 417 variability-selected AGNs, including 237 with stellar masses between 107 and 1010 M☉. 75% of low-mass galaxies with AGN-like variability have narrow emission lines dominated by star formation. After controlling for nucleus magnitude, the fraction of variable AGNs is constant down to M* = 109 M☉, suggesting no drastic decline in the BH occupation fraction down to this stellar mass regime. Combining our NASA-Sloan Atlas sample with samples of nearby galaxies with broad Hα emission, we find no dependence of variability properties with black hole mass. Our PTF work demonstrates the promise of long-term optical variability searches in low-mass galaxies for finding AGNs missed by other selection techniques.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Active galactic nuclei - Dwarf galaxies - Variable radiation sources - Sky surveys - AGN host galaxies

VizieR on-line data: <Available at CDS (J/ApJ/896/10): table3.dat>

Simbad objects: 240

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Number of rows : 240
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 2MASX J00171162+2928512 GiG 00 17 11.5715128488 +29 28 51.266371620           ~ 5 0
2 2MASX J00183652+2955586 GiG 00 18 36.520 +29 55 58.64           ~ 6 0
3 BA 1-379 HII 00 39 18.84552 +40 21 58.3920           ~ 16 1
4 2MASX J00404757+0037189 Sy1 00 40 47.5472582376 +00 37 18.738676560     18.53     ~ 9 0
5 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
6 CAIRNS J005511.35-004612.1 GiC 00 55 11.3488249416 -00 46 11.998620192           ~ 5 0
7 Z 501-58 Sy1 00 59 53.2855168104 +31 49 37.254192204   15.25 14.81     ~ 239 0
8 SDSS J010547.33+003028.6 G 01 05 47.3339965104 +00 30 28.936976652           ~ 4 0
9 SDSS J012233.28+000808.5 G 01 22 33.28546 +00 08 08.5498           ~ 3 0
10 LEDA 169778 GiC 01 25 36.1532911056 +34 44 11.260303080           ~ 9 0
11 SDSS J012854.19+145622.7 G 01 28 54.19210 +14 56 22.6981           ~ 4 0
12 LEDA 1421664 AG? 01 49 18.9409730256 +13 02 52.069395516           ~ 9 0
13 SDSS J014941.15+005347.1 G 01 49 41.15255 +00 53 47.1156           ~ 3 0
14 SDSS J015256.31+142924.6 G 01 52 56.3089771920 +14 29 24.714547872           ~ 4 0
15 SDSS J021934.92-002432.1 G 02 19 34.9275496344 -00 24 32.193503604           ~ 7 0
16 LEDA 1163475 LIN 02 44 16.3943301936 +00 20 29.686402824           ~ 13 0
17 LEDA 1159799 G 02 52 30.94616 +00 12 23.2606           ~ 5 0
18 SDSS J025708.65-002847.6 G 02 57 08.65021 -00 28 47.6280           ~ 3 0
19 SDSS J034330.26-073507.4 Sy2 03 43 30.2523443808 -07 35 07.438763112   18.43 17.79     ~ 10 0
20 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 245 1
21 LEDA 1058940 AG? 04 32 42.2714214792 -04 22 57.027821376   16.99   15.77   ~ 7 0
22 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
23 SDSS J074314.74+192942.2 AG? 07 43 14.7392830752 +19 29 42.249658668           ~ 3 0
24 LEDA 1830180 G 07 48 47.8632446184 +28 14 23.063987904           ~ 17 0
25 SDSS J075647.47+533527.8 G 07 56 47.470 +53 35 27.90           ~ 4 0
26 SDSS J075922.59+093711.7 G 07 59 22.61180 +09 37 11.5699           ~ 1 0
27 LEDA 1485042 EmG 08 00 28.5910902888 +15 27 11.025051984           ~ 19 0
28 LEDA 1350885 G 08 03 00.9338037336 +08 38 44.629295640           ~ 5 0
29 SDSS J080554.47+564642.1 G 08 05 54.47658 +56 46 42.1381           ~ 4 0
30 SDSS J081348.16+375007.7 G 08 13 48.1847558880 +37 50 07.810961748           ~ 3 0
31 SDSS J081516.32+575928.6 G 08 15 16.3225638755 +57 59 28.720297528           ~ 3 0
32 SDSS J081811.89+274308.9 EmG 08 18 11.89487 +27 43 09.0030           ~ 15 0
33 LEDA 1668887 G 08 20 26.491 +22 23 03.92           ~ 12 0
34 Z 119-107 AG? 08 27 23.974 +23 10 47.77   15.6       ~ 32 0
35 LEDA 2816610 G 08 27 30.6625090488 +19 22 00.290289828           ~ 11 0
36 2MASS J08291268+5006523 Sy1 08 29 12.6809834208 +50 06 52.350492744   17.81 17.42     ~ 46 0
37 LEDA 2414405 G 08 32 42.8350587024 +52 25 00.435739296   16.5       ~ 27 0
38 SDSS J085032.36+290544.2 G 08 50 32.3656973784 +29 05 44.226346416           ~ 5 0
39 LEDA 1845202 G 08 51 00.322 +28 45 43.18           ~ 10 0
40 LEDA 1525065 G 09 14 14.72867 +17 07 06.6688           ~ 6 0
41 LEDA 2366691 G 09 15 49.7305308096 +50 13 37.311519900           ~ 6 0
42 SDSS J091615.20+172646.3 G 09 16 15.21140 +17 26 46.3707           ~ 3 0
43 SDSS J092025.82+504939.5 G 09 20 25.82838 +50 49 39.5215           ~ 4 0
44 LEDA 2064317 G 09 22 05.1999624504 +35 25 29.950176936           ~ 14 0
45 LEDA 1685311 G 09 36 27.4255855632 +23 19 08.854300164           ~ 9 0
46 Z 35-25 G 09 39 35.2566382536 +06 24 51.897755664   15.3       ~ 23 0
47 MCG+02-25-021 G 09 42 53.26 +09 29 34.4   13.7       ~ 60 0
48 SDSS J094410.41+340231.0 G 09 44 10.41933 +34 02 31.0852           ~ 3 0
49 LEDA 3091260 AG? 09 44 19.425 +09 59 05.19           ~ 22 0
50 SDSS J095414.41+102822.9 G 09 54 14.41609 +10 28 22.9781           ~ 1 0
51 LEDA 3532567 G 09 55 44.05091 +35 36 41.2523           ~ 5 0
52 SDSS J100408.88+041613.0 G 10 04 08.87985 +04 16 13.0647           ~ 4 0
53 LEDA 3753948 G 10 19 08.06936 +19 58 55.7450           ~ 8 0
54 SDSS J102023.53+212039.2 G 10 20 23.53155 +21 20 39.2840           ~ 3 0
55 SDSS J103716.38+380623.5 G 10 37 16.38043 +38 06 23.4809           ~ 3 0
56 SDSS J104105.52+250811.4 G 10 41 05.52495 +25 08 11.4147           ~ 2 0
57 NAME eta Car Cluster Cl* 10 45 03.0 -59 41 04           ~ 30 0
58 LEDA 2394162 G 10 48 49.499 +51 26 31.78           ~ 5 0
59 SDSS J111700.32+544618.0 G 11 17 00.3102606645 +54 46 18.064454209           ~ 2 0
60 LEDA 2594537 AG? 11 40 40.7336845272 +59 48 50.121183816           ~ 7 0
61 LEDA 2089042 G 11 44 35.262 +36 54 08.68           ~ 5 0
62 LEDA 2294662 G 11 45 45.72577 +47 13 54.8614           ~ 6 0
63 SDSS J115704.05+221845.4 G 11 57 04.05655 +22 18 45.4935           ~ 7 0
64 SDSS J120342.58+142215.0 G 12 03 42.5903706144 +14 22 14.970103176           ~ 3 0
65 LEDA 213940 G 12 10 42.46837 +13 18 48.3942           ~ 11 0
66 SDSS J121123.81+343458.9 G 12 11 23.8206432360 +34 34 58.941214500           ~ 3 0
67 SDSS J121216.46+171447.7 G 12 12 16.46653 +17 14 47.8150           ~ 4 0
68 LBQS 1214+1432 EmG 12 16 39.45665 +14 15 37.0525   17.7       ~ 9 0
69 IC 3099 LSB 12 17 09.228 +12 27 14.21   15.1       ~ 95 0
70 SDSS J121813.43+200436.8 G 12 18 13.4344580952 +20 04 36.817935600           ~ 9 0
71 Z 42-42 GiG 12 21 34.0789476672 +04 46 46.246202508   14.64       ~ 57 1
72 LEDA 1327818 AG? 12 26 47.9459604864 +07 40 17.584051620           ~ 15 0
73 LEDA 2201743 G 12 29 04.341 +42 34 39.46           ~ 6 0
74 SDSS J123054.85+104921.6 G 12 30 54.8460013584 +10 49 21.562907160           ~ 4 0
75 SDSS J123223.30+662536.6 EmG 12 32 23.3121924120 +66 25 36.753296700           ~ 4 0
76 LEDA 2259416 G 12 34 59.4614769384 +45 07 47.634524076           ~ 3 0
77 2XMM J123519.9+393110 EmG 12 35 20.0423163816 +39 31 09.032841264   17.2       ~ 17 0
78 [BKD2008] WR 364 EmG 12 37 02.267 +06 55 31.03           ~ 6 0
79 LEDA 3394751 G 12 38 10.57583 +04 45 29.9169           ~ 8 0
80 LEDA 1293690 G 12 38 26.18921 +06 02 59.8045           ~ 5 0
81 Z 188-12 EmG 12 38 56.9188511736 +38 05 24.801232272   15.4       ~ 28 0
82 LEDA 2301858 AGN 12 39 59.27790 +47 38 49.7235     18.22     ~ 10 0
83 LEDA 4337950 G 12 42 06.47362 +33 16 43.7877           ~ 6 0
84 LEDA 1844079 G 12 44 46.80697 +28 43 26.8995           ~ 6 0
85 LBQS 1244+0238 Sy1 12 46 35.2527826632 +02 22 08.782546368   16.57 16.37     ~ 313 0
86 SDSS J124846.85+264455.0 G 12 48 46.852 +26 44 54.99           ~ 7 0
87 LEDA 83699 GiC 12 57 47.8677996504 +27 46 10.023657852   16 16.27 16.16   ~ 26 0
88 [BO85] Coma 262 GiC 12 57 53.130 +27 42 26.30     16.35 16.14   ~ 14 0
89 GMP 4591 GiC 12 57 55.37297 +27 13 55.2663   18.65 17.06 16.99   ~ 16 0
90 LEDA 83707 GiC 12 57 56.79626 +27 59 30.3056   16 16.55 16.70   ~ 33 0
91 LEDA 126836 G 12 58 15.268 +27 27 52.91   19.14 17.73 17.48 17.63 ~ 17 0
92 Mrk 233 H2G 12 58 29.7121500240 +59 07 56.715945924   16.5       ~ 13 0
93 LEDA 126815 AG? 12 58 45.543 +27 45 13.96 18.55 18.47 16.82 16.72 16.6 ~ 32 0
94 CAIRNS J130244.73+363025.1 EmG 13 02 44.7484789944 +36 30 25.510108788   18.41       ~ 5 0
95 2MASS J13061515+5857331 Sy1 13 06 15.1641226080 +58 57 33.171688764   17.23 16.73     ~ 12 0
96 LEDA 2365299 G 13 07 15.7742250696 +50 10 50.411526960           ~ 5 0
97 LEDA 1318083 GiC 13 15 57.03529 +07 17 03.0744           ~ 6 0
98 US 554 G 13 18 44.0515213008 +32 15 25.980507684   17.8       ~ 6 0
99 LEDA 2015676 G 13 19 45.4589798472 +32 52 31.806103980   17.141       ~ 6 0
100 LEDA 2196914 G 13 23 08.796 +42 20 19.16           ~ 5 0
101 SDSS J132721.12+422416.4 G 13 27 21.1273157996 +42 24 16.460776198           ~ 2 0
102 LEDA 4566733 G 13 29 41.900 +10 36 36.82           ~ 7 0
103 LEDA 1665475 G 13 34 14.757 +22 12 03.23           ~ 6 0
104 2MASS J13343060+3439333 AG? 13 34 30.60624 +34 39 33.3360           ~ 7 0
105 LEDA 2051855 AG? 13 34 36.9082702032 +34 36 44.697208212           ~ 8 0
106 SDSS J133702.93+181013.8 G 13 37 02.93281 +18 10 13.8207           ~ 4 0
107 SDSS J133931.82+312657.8 G 13 39 31.82950 +31 26 57.9036           ~ 7 0
108 LEDA 2183908 G 13 46 26.46984 +41 36 55.2348           ~ 5 0
109 LEDA 2593059 G 13 48 31.73884 +59 40 32.6684           ~ 3 0
110 SDSS J135845.46+524245.0 G 13 58 45.4642813584 +52 42 45.160787088           ~ 4 0
111 SDSS J135907.33+563753.0 G 13 59 07.3050426504 +56 37 53.007981744           ~ 4 0
112 LEDA 3818041 GiC 14 01 48.8221323528 +09 13 23.474154036           ~ 8 0
113 LEDA 2510108 G 14 05 15.77 +55 39 50.9   15.1       ~ 8 0
114 SDSS J140542.34+552701.2 G 14 05 42.34813 +55 27 01.2350           ~ 3 0
115 2MASS J14140503+2633367 Sy1 14 14 05.0236607640 +26 33 36.823290624   18.40 17.91     ~ 14 0
116 SDSS J141436.58+344116.8 G 14 14 36.58553 +34 41 16.8289           ~ 3 0
117 LEDA 2116059 G 14 15 41.35216 +38 01 52.9777           ~ 6 0
118 LEDA 2816097 G 14 27 32.0072281200 +50 31 50.119985676   16       ~ 10 0
119 SDSS J143056.71+060502.2 G 14 30 56.71694 +06 05 02.2152           ~ 4 0
120 LEDA 1383041 G 14 32 26.5869238752 +10 41 01.373643348           ~ 7 0
121 SDSS J144012.70+024743.5 Sy2 14 40 12.7004991288 +02 47 43.607503032   16.83 16.42     ~ 40 0
122 SDSS J144628.85+031412.2 G 14 46 28.8461513304 +03 14 12.355444248           ~ 7 0
123 SDSS J144723.07+223305.9 G 14 47 23.07932 +22 33 05.9884           ~ 4 0
124 LEDA 1486538 G 14 49 13.48247 +15 30 36.6687           ~ 2 0
125 SDSS J145036.49+150331.7 G 14 50 36.495 +15 03 31.78           ~ 3 0
126 LEDA 2348967 G 14 53 14.3110452984 +49 38 16.868949000           ~ 4 0
127 2MASX J14552594+4313229 EmG 14 55 25.8941234424 +43 13 23.160003456           ~ 6 0
128 LEDA 2816136 G 15 01 27.73395 +55 31 33.6953   17.5       ~ 8 0
129 SDSS J150226.30+030154.2 G 15 02 26.30742 +03 01 54.2613           ~ 4 0
130 LEDA 2407481 SyG 15 05 06.60447 +52 07 54.2219           ~ 6 0
131 SDSS J151439.38+204807.4 G 15 14 39.3905734025 +20 48 07.494615397           ~ 2 0
132 SDSS J151620.75+052522.5 G 15 16 20.75058 +05 25 22.5473           ~ 4 0
133 2MASX J15163450+2058383 Sy1 15 16 34.4573971656 +20 58 38.006328720           ~ 19 0
134 LEDA 4457418 G 15 18 17.854 +08 20 54.56           ~ 8 0
135 SDSS J152128.48+363421.5 G 15 21 28.485 +36 34 21.51           ~ 2 0
136 SDSS J152937.45+513638.1 G 15 29 37.45689 +51 36 38.1370           ~ 3 0
137 SDSS J153006.46+210251.0 G 15 30 06.46435 +21 02 51.0576           ~ 2 0
138 LEDA 3096431 Sy1 15 31 41.2545302856 +20 19 29.951446548   17.08 16.82     ~ 21 0
139 SDSS J153239.61+443203.0 Sy2 15 32 39.6181547400 +44 32 03.082567524           ~ 14 0
140 LEDA 3848705 G 15 32 46.6476057888 +06 09 22.420219680           ~ 5 0
141 Z 249-29 AG? 15 32 56.177 +46 27 05.19   15.20       ~ 48 0
142 SDSS J153413.80+163009.0 G 15 34 13.80292 +16 30 09.0063           ~ 4 0
143 MCG+07-32-027 EmG 15 34 14.896 +43 14 44.20   15       ~ 15 0
144 LEDA 1259917 H2G 15 36 47.209 +03 52 16.75           ~ 11 0
145 SDSS J153950.62+214322.8 G 15 39 50.6175802704 +21 43 22.864589508           ~ 5 0
146 2MASX J15421427+0956548 Sy1 15 42 14.2721812656 +09 56 54.768119280   18.35 17.89     ~ 13 0
147 SDSS J154404.32+275335.8 G 15 44 04.326 +27 53 35.89           ~ 5 1
148 SDSS J154704.89+162632.7 G 15 47 04.8947124240 +16 26 32.834764284           ~ 6 0
149 2MASS J15470954+3347249 AGN 15 47 09.5216457408 +33 47 24.567246816           ~ 2 0
150 SDSS J154948.95+070330.0 G 15 49 48.95950 +07 03 30.0338           ~ 4 0
151 SDSS J155052.74+460036.9 G 15 50 52.7526834024 +46 00 36.957364524           ~ 3 0
152 SDSS J155134.96+490905.3 G 15 51 34.96282 +49 09 05.3355           ~ 3 0
153 LEDA 4018649 G 15 52 06.94943 +41 01 05.3130           ~ 3 0
154 2MASS J15522488+0417263 Sy1 15 52 24.8778496224 +04 17 26.252610036   18.66 18.18     ~ 19 1
155 SDSS J155426.44+204210.6 G 15 54 26.4325056288 +20 42 10.782618084           ~ 4 0
156 SDSS J155427.50+183756.4 G 15 54 27.5069216781 +18 37 56.436909049           ~ 2 0
157 SDSS J155429.21+192012.2 G 15 54 29.2215234384 +19 20 12.081390216           ~ 4 0
158 2MASS J15573313+0830430 Sy1 15 57 33.1364306976 +08 30 42.950201436   17.73 17.37     ~ 17 0
159 SDSS J155845.21+180737.7 G 15 58 45.21333 +18 07 37.7759           ~ 2 0
160 SDSS J155849.45+324850.0 G 15 58 49.4414539560 +32 48 49.875196536           ~ 3 0
161 SDSS J155910.63+315353.5 G 15 59 10.6433743152 +31 53 53.746327608           ~ 3 0
162 SDSS J160038.02+163910.0 G 16 00 38.03088 +16 39 10.0448           ~ 6 0
163 SDSS J160049.66+200440.9 G 16 00 49.6554756144 +20 04 40.942820568           ~ 4 0
164 LEDA 2075640 G 16 01 57.2351807856 +36 08 29.067333648           ~ 8 0
165 LEDA 1501966 G 16 02 15.283 +16 09 04.28           ~ 4 0
166 LEDA 56800 G 16 02 32.8154903616 +22 39 55.140867216   16.5       ~ 7 0
167 LEDA 2074315 G 16 03 46.583 +36 03 38.53           ~ 7 0
168 SDSS J160417.79+361919.0 G 16 04 17.78993 +36 19 19.0625           ~ 4 0
169 SDSS J160524.52+011259.6 G 16 05 24.5192394480 +01 12 59.652117468           ~ 7 0
170 2MASX J16063782+1823532 GiC 16 06 37.82477 +18 23 53.4331           ~ 8 0
171 SDSS J160643.75+181512.0 G 16 06 43.75934 +18 15 12.1207           ~ 2 0
172 2MASX J16065705+1751251 GiC 16 06 57.056 +17 51 25.14   16       ~ 16 0
173 LEDA 1700351 G 16 09 28.555 +24 07 37.37           ~ 5 0
174 LEDA 2246321 G 16 09 30.68860 +44 31 48.2540           ~ 5 0
175 KISS F1610-5847 EmG 16 10 12.0745582704 +43 19 04.311343128           ~ 8 0
176 LEDA 1696850 G 16 10 30.59807 +23 57 23.9084           ~ 3 0
177 SDSS J161129.76+235825.5 G 16 11 29.7601138128 +23 58 25.452468516           ~ 5 0
178 LEDA 2220204 EmG 16 12 16.89086 +43 24 50.4814           ~ 11 0
179 LEDA 1640554 G 16 13 33.2289920616 +20 59 56.676916212           ~ 5 0
180 SDSS J161341.88+221113.1 G 16 13 41.880 +22 11 13.12           ~ 5 0
181 LEDA 1959405 G 16 13 58.4145861048 +31 41 24.938627691           ~ 5 0
182 LEDA 2054462 GiC 16 18 10.9401006792 +34 46 55.661861424           ~ 7 0
183 LEDA 1857972 SBG 16 19 02.545 +29 10 22.20   17.85 17.54     ~ 19 0
184 LEDA 4013350 G 16 21 07.870 +35 22 23.42           ~ 6 0
185 SDSS J162243.11+481009.2 G 16 22 43.11931 +48 10 09.2524           ~ 4 0
186 LEDA 58090 GiC 16 25 26.1435457632 +39 30 29.292042996   16.5       ~ 15 0
187 SDSS J162617.37+085921.4 G 16 26 17.3837895624 +08 59 21.382360044           ~ 5 0
188 SDSS J162640.35+420136.4 G 16 26 40.3501920984 +42 01 36.320930796           ~ 13 0
189 LEDA 2143833 G 16 26 57.41690 +39 07 39.8038           ~ 7 0
190 SDSS J162745.78+393255.4 G 16 27 45.7838651016 +39 32 55.501611180           ~ 5 0
191 SDSS J162746.35+403923.3 G 16 27 46.3560121872 +40 39 23.376351780           ~ 4 0
192 SDSS J162747.62+405801.3 G 16 27 47.6300300568 +40 58 01.277751144           ~ 4 0
193 SDSS J162758.29+201444.1 G 16 27 58.2896656080 +20 14 44.214039888           ~ 6 0
194 LEDA 2143645 EmG 16 27 58.42589 +39 07 04.3749           ~ 8 0
195 SDSS J162800.85+393736.1 GiC 16 28 00.8559926040 +39 37 36.100377660           ~ 7 0
196 LEDA 1734984 EmG 16 28 06.8069893992 +25 23 43.432587132           ~ 21 0
197 LEDA 1647014 G 16 28 07.8558006456 +21 17 34.116866556           ~ 6 0
198 SDSS J162812.10+404719.0 G 16 28 12.104 +40 47 19.19           ~ 7 0
199 SDSS J162812.28+405114.8 G 16 28 12.2844202584 +40 51 14.849638668           ~ 4 0
200 LEDA 3388450 GiC 16 28 15.1391769168 +40 33 27.342385560           ~ 9 0
201 SDSS J162843.37+403218.8 G 16 28 43.37030 +40 32 18.9485           ~ 6 0
202 MCG+07-34-073 GiC 16 28 47.6176788480 +39 38 59.183765376   16       ~ 17 0
203 LEDA 3388185 G 16 29 26.974 +40 46 17.08           ~ 5 0
204 LEDA 3388449 G 16 29 37.78308 +40 33 45.1988           ~ 4 0
205 SDSS J163158.06+134959.6 G 16 31 58.06132 +13 49 59.6503           ~ 6 0
206 SDSS J163213.04+305748.7 G 16 32 13.0375118232 +30 57 48.598456068           ~ 4 0
207 SDSS J163243.19+203613.1 G 16 32 43.1906619432 +20 36 13.167652320           ~ 4 0
208 SDSS J163323.32+243740.5 G 16 33 23.32073 +24 37 40.5582           ~ 1 0
209 SDSS J163621.15+130613.5 G 16 36 21.1456506336 +13 06 13.662420192           ~ 5 0
210 SDSS J163716.81+360239.7 G 16 37 16.8169530360 +36 02 39.815529252           ~ 6 0
211 SDSS J163813.32+240734.5 G 16 38 13.326 +24 07 34.56           ~ 9 0
212 SDSS J164238.45+223309.0 EmG 16 42 38.45184 +22 33 09.0900   17.5       ~ 7 0
213 SDSS J164509.09+254045.1 G 16 45 09.0929549352 +25 40 45.017070456           ~ 4 0
214 SDSS J165037.15+285335.7 G 16 50 37.1519922432 +28 53 35.767300596           ~ 4 0
215 LEDA 214546 EmG 16 51 42.7142125200 +19 25 43.278117204           ~ 13 0
216 SDSS J165342.66+352213.0 G 16 53 42.66048 +35 22 13.0368           ~ 1 0
217 SDSS J165351.03+350909.1 G 16 53 51.03760 +35 09 09.1217           ~ 5 0
218 LEDA 2077089 G 16 54 28.3787527824 +36 13 43.411949976           ~ 7 0
219 LEDA 84787 rG 16 57 58.3121144088 +78 36 14.267423952   17.10       ~ 14 0
220 LEDA 2010106 G 17 00 29.40409 +32 43 57.6637           ~ 5 0
221 6C 170204+454510 Sy1 17 03 30.3824218008 +45 40 47.166180564   16.0       ~ 170 2
222 SDSS J171217.16+620546.8 G 17 12 17.1483703536 +62 05 46.653274752           ~ 4 0
223 LEDA 1867524 G 17 16 50.669 +29 28 39.10           ~ 7 0
224 LEDA 60005 Sy2 17 17 15.7477284768 +64 15 40.172330916   18.66 18.13     ~ 12 0
225 LEDA 2455498 EmG 17 20 05.26185 +53 57 02.8499           ~ 6 0
226 LEDA 2535415 G 17 23 47.6217123696 +56 23 48.280872804           ~ 5 0
227 SDSS J172655.24+582836.3 G 17 26 55.24418 +58 28 36.3659           ~ 2 0
228 LEDA 2665228 G 18 22 41.358 +64 10 27.82   18.0       ~ 5 0
229 SDSS J212456.67-003845.4 G 21 24 56.66780 -00 38 45.5503           ~ 5 0
230 SDSS J213251.34+001752.2 G 21 32 51.34972 +00 17 52.2133           ~ 4 0
231 LEDA 5060751 AG? 22 09 09.726 +41 15 26.00           ~ 10 0
232 Z 429-21 EmG 22 41 10.65079 +13 20 23.6871   15.70       ~ 45 0
233 LEDA 1131683 G 22 57 45.38131 -00 54 25.4519           ~ 7 0
234 SDSS J230043.14+223114.2 bCG 23 00 43.14104 +22 31 14.2192           ~ 4 0
235 SDSS J231926.69+184718.7 G 23 19 26.69510 +18 47 18.7768           ~ 3 0
236 2MASX J23400871+2654024 GiC 23 40 08.6878489248 +26 54 02.117988936   15.88 14.69     ~ 18 0
237 SDSS J234417.78+004708.4 G 23 44 17.71083 +00 47 08.8360           ~ 5 0
238 NGC 7753 AG? 23 47 04.834 +29 29 00.17   13.2       ~ 181 0
239 LEDA 1179990 G 23 47 25.88363 +00 56 59.4494           ~ 3 0
240 LEDA 1771917 Sy1 23 51 52.7990140728 +26 19 32.657428164           ~ 22 0

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