2022MNRAS.516.2455N

Query : 2022MNRAS.516.2455N

2022MNRAS.516.2455N - Mon. Not. R. Astron. Soc., 516, 2455-2469 (2022/October-3)

ASAS-SN follow-up of IceCube high-energy neutrino alerts.

NECKER J., DE JAEGER T., STEIN R., FRANCKOWIAK A., SHAPPEE B.J., KOWALSKI M., KOCHANEK C.S., STANEK K.Z., BEACOM J.F., DESAI D.D., NEUMANN K., JAYASINGHE T., HOLOIEN T.W.-S., THOMPSON T.A. and HOLMBO S.

Abstract (from CDS):

We report on the search for optical counterparts to IceCube neutrino alerts released between 2016 April and 2021 August with the All-Sky Automated Survey for SuperNovae (ASAS-SN). Despite the discovery of a diffuse astrophysical high-energy neutrino flux in 2013, the source of those neutrinos remains largely unknown. Since 2016, IceCube has published likely astrophysical neutrinos as public real-time alerts. Through a combination of normal survey and triggered target-of-opportunity observations, ASAS-SN obtained images within 1 h of the neutrino detection for 20 per cent (11) of all observable IceCube alerts and within one day for another 57 per cent (32). For all observable alerts, we obtained images within at least two weeks from the neutrino alert. ASAS-SN provides the only optical follow-up for about 17 per cent of IceCube's neutrino alerts. We recover the two previously claimed counterparts to neutrino alerts, the flaring-blazar TXS 0506 + 056 and the tidal disruption event AT2019dsg. We investigate the light curves of previously detected transients in the alert footprints, but do not identify any further candidate neutrino sources. We also analysed the optical light curves of Fermi 4FGL sources coincident with high-energy neutrino alerts, but do not identify any contemporaneous flaring activity. Finally, we derive constraints on the luminosity functions of neutrino sources for a range of assumed evolution models.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): neutrinos - gamma-ray burst: general - supernovae: general

Simbad objects: 286

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Number of rows : 286
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 IceCube-190922B ev 00 19.2 -01 55           ~ 10 0
2 IceCube-201209A ev 00 22.7 -09 04           ~ 19 0
3 SN 2020ds SN* 00 28 38.800 -10 11 21.80           SNIa 1 0
4 SN 2017hfw SN* 00 30 29.32 -08 46 48.5           SNIc 2 0
5 SN 2019stx SN* 01 39 36.415 -00 26 48.06           SNIa 2 0
6 SN 2016isg SN* 01 41 18.833 -00 12 36.07           SNIa 5 0
7 IceCube-191122A ev 01 48.1 +00 04           ~ 10 0
8 GALEX J014823.2-004807 No* 01 48 23.2923708384 -00 48 07.650507996           DAH: 6 0
9 ASASSN -13dg CV* 01 51 58.57 +31 54 22.7           ~ 3 0
10 AT 2016ipd SN* 01 53 34.360 +31 17 43.65           SNIa 2 0
11 PSN J01534240+2956107 SN* 01 53 42.40 +29 56 10.7           SNIa 11 0
12 IceCube-190629A ev 01 56.5 +84 34           ~ 9 0
13 IceCube-200929A ev 01 57.4 +03 18           ~ 16 0
14 IceCube-201130A ev 02 02.9 -11 55           ~ 22 0
15 AT 2021cgr ev 02 06 35.80 -12 47 56.3           ~ 1 0
16 SN 2020yxd SN* 02 09 13.670 +33 02 38.09           SNIa 4 0
17 IceCube-200614A ev 02 15.4 +31 37           ~ 13 0
18 ASASSN -14dc SN* 02 18 37.82 +33 37 01.7           SNIIn 8 0
19 HS 0218+3229 CV* 02 21 33.4824194472 +32 43 23.886726456           ?+K5e 28 0
20 V* WY Tri CV* 02 25 00.4851021606 +32 59 55.825124236           ~ 25 0
21 SN 2021ucx SN* 02 28 09.400 +32 21 29.66           SNIa 1 0
22 SN 2021vtl SN* 02 29 28.070 +31 38 38.08           SNIa 1 0
23 M 77 Sy2 02 42 40.7091669408 -00 00 47.859690204 9.70 9.61 8.87 10.1 9.9 ~ 4897 2
24 IceCube-161103A ev 02 43.3 +12 34           ~ 12 0
25 V* PY Per CV* 02 50 00.1479128544 +37 39 22.196658168           ~ 30 0
26 SN 2019oml SN* 03 00 20.270 +18 44 37.05           SNIa 5 0
27 ASASSN -18abl CV* 03 00 55.05 +18 02 28.7           ~ 3 0
28 ASASSN -15ti SN* 03 05 08.616 +37 54 00.72           SNIa 11 0
29 IceCube-161210A ev 03 06.3 +14 59           ~ 7 0
30 IceCube-191231A ev 03 13.9 +20 07           ~ 16 0
31 IceCube-200911A ev 03 24.4 +38 07           ~ 15 0
32 SN 2014dz SN* 03 28 14.19 +38 01 11.1           SNIa 5 1
33 ASASSN -14im CV* 03 30 14.82 +38 09 01.3           ~ 1 0
34 ASASSN -18bs CV* 03 38 23.85 +84 47 51.1           ~ 1 0
35 SN 2021yrf SN* 03 38 40.220 +38 01 17.72           SNIa 2 0
36 ASASSN -21at ? 04 49 14.78 +13 24 33.1           ~ 1 0
37 ASASSN -16cq CV* 04 57 57.93 +14 04 35.5           ~ 1 0
38 SDSS J050027.24+133419.9 CV* 05 00 27.2383916952 +13 34 19.865596476           ~ 7 0
39 IceCube-190712A ev 05 05.8 +13 04           ~ 16 0
40 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
41 1RXS J051922.6+155421 CV* 05 19 22.8993350832 +15 54 35.065363068           ~ 15 0
42 IceCube-191204A ev 05 20.6 +02 52           ~ 11 0
43 SN 2017avl SN* 05 20 47.07 +03 15 24.5           SNIa 4 0
44 ASASSN -14fq CV* 05 26 53.35 +02 28 39.4           ~ 2 0
45 ASASSN -15av CV* 05 29 12.74 +02 23 24.9           ~ 2 0
46 IceCube-200421A ev 05 51.7 +08 14           ~ 13 0
47 IceCube-200926A ev 06 25.8 -05 05           ~ 18 0
48 IceCube-170321A ev 06 33.3 -14 29           ~ 15 0
49 SN 2020unl SN* 06 35 48.100 +55 42 39.89           SN.Ia 5 0
50 IceCube-200425A ev 06 39.9 +53 43           ~ 11 0
51 ASASSN -20pb ? 06 41 39.15 +52 53 37.2           ~ 1 0
52 ASASSN -19an CV* 06 49 49.91 +55 41 40.4           ~ 1 0
53 IceCube-201114A ev 06 57.8 +06 23           ~ 33 0
54 ASASSN -20ea ? 07 14 13.14 +14 53 08.0           ~ 1 0
55 IceCube-200916A ev 07 19.1 +14 22           ~ 17 0
56 IceCube-200117A ev 07 44.1 +29 11           ~ 18 0
57 ASASSN -16ps CV* 07 58 43.73 +06 58 47.1           ~ 1 0
58 IceCube-190503A ev 08 01.1 +06 21           ~ 18 0
59 IceCube-160806A ev 08 11.2 -00 49           ~ 8 0
60 SDSS J093205.24+034332.6 CV* 09 32 05.2512515690 +03 43 32.742932942           ~ 5 0
61 IceCube-200615A ev 09 32.6 +03 19           ~ 15 0
62 IceCube-180908A ev 09 38.3 -02 08           ~ 10 0
63 SN 2017hzv SN* 09 39 12.260 -01 20 22.99           SNIa 4 0
64 ASASSN -19abo SN? 09 49 23.678 +01 08 47.57           ~ 2 0
65 RX J0955.1+3550 BLL 09 55 07.8818398488 +35 51 00.885435048   21.04 20.36 19.1   ~ 68 0
66 IceCube-200107A ev 09 55 07.90 +35 51 00.9           ~ 30 0
67 IceCube-190819A ev 09 55.2 +01 23           ~ 18 0
68 SN 2021ghc SN* 09 56 32.990 +00 45 08.24           SNIa 4 0
69 SN 2019gqa SN* 10 13 15.945 -08 38 16.46           ~ 1 0
70 CRTS J102637.0+475426 CV* 10 26 37.0456894296 +47 54 26.496779976           ~ 17 0
71 IceCube-200806A ev 10 29.0 +47 45           ~ 11 0
72 SN 2019crd SN* 10 37 10.345 +25 54 12.83           SN.Ia 2 0
73 SN 2018bac SN* 10 42 42.160 +25 59 41.16           SNIa 2 0
74 Fermi J1045.3+2751 ev 10 47.4 +27 07           ~ 20 0
75 IceCube-200620A ev 10 48.4 +11 57           ~ 17 0
76 SN 2014ea SN* 10 48 32.31 +26 35 17.9           SNIa 5 1
77 ASASSN -15js SN* 10 50 38.350 +12 17 49.19           SNIa 6 0
78 IceCube-171015A ev 10 51.4 -15 26           ~ 11 0
79 AT 2017edw SN* 10 52 04.440 +11 35 41.69           SNIa 4 0
80 SN 2021bnw SN* 10 53 52.170 +12 33 28.98           SLSN-I 7 0
81 SN 2018ie SN* 10 54 01.060 -16 01 21.40           SNII 14 0
82 SN 2019bjw SN* 10 55 47.416 +27 40 17.88           SNIa 5 0
83 IceCube-200109A ev 10 58.0 +11 52           ~ 22 0
84 MASTER OT J105908.57+103834.8 SN* 10 59 08.57 +10 38 34.8           SNIa 5 0
85 AT 2019igz SN? 10 59 41.652 +10 50 01.14           ~ 2 0
86 SN 2020czo SN* 11 01 11.302 +12 28 29.18           SNIa 3 0
87 SN 2017dfq SN* 11 03 12.910 +11 04 40.51           SNIa 8 0
88 IceCube-190922A ev 11 09.7 -22 23           ~ 7 0
89 ASASSN -15fu CV* 11 10 46.2321737047 -23 37 44.562994349           ~ 6 0
90 IceCube-200926B ev 12 19.0 +32 56           ~ 12 0
91 ASASSN -21dk ? 12 55 19.56 +24 54 04.7           ~ 1 0
92 SN 2020afp SN? 12 55 41.263 +27 15 01.97           ~ 4 0
93 ASASSN -18cr CV* 12 58 32.15 +26 01 06.3           ~ 2 0
94 IceCube-201115A ev 12 59.0 +02 28           ~ 19 0
95 ASASSN -16bg SN* 12 59 25.100 +27 44 24.97           SNIa 7 0
96 IceCube-200921A ev 13 01.2 +26 14           ~ 13 0
97 2QZ J130441.7+010330 CV* 13 04 41.7657448392 +01 03 30.821996052           ~ 8 0
98 AT 2020cxg ev 13 12 34.41 -33 06 05.0           ~ 1 0
99 IceCube HESE 58537957 128340 ev 13 17 14.4 -32 00 59           ~ 10 0
100 AT 2021qiz ev 13 19 22.46 -32 55 52.4           ~ 1 0
101 ASASSN -15mw Bz? 13 21 29.85 -31 41 09.5           ~ 1 0
102 SN 2019clh SN* 13 27 12.994 -31 08 41.97           SNIa 3 0
103 IceCube-210210A ev 13 45.0 +04 25           ~ 14 0
104 IceCube-201222A ev 13 47.6 +13 16           ~ 16 0
105 AT 2020ajp ev 14 18 32.14 -00 29 08.6           ~ 1 0
106 IceCube HESE 128290 6888376 ev 14 20 26 -00 27.5           ~ 14 0
107 IceCube-201014A ev 14 44.9 +14 26           ~ 16 0
108 ASASSN -17ei CV* 14 49 53.64 -34 26 10.9           ~ 3 0
109 SN 2018bgy SN* 14 55 11.649 -36 13 50.51           SN.Ia 1 0
110 2MASS J14580559+0244330 Er* 14 58 05.5937693761 +02 44 33.069765238           M4 2 0
111 ASASSN -16dp SN* 14 59 42.130 +04 05 08.09           SNIa 5 0
112 ASASSN -15ul SN* 15 00 27.680 +06 27 19.31           SNII 6 0
113 IceCube-181014A ev 15 00.6 -34 48           ~ 11 0
114 SN 2019aah SN* 15 01 30.714 +04 52 41.84           SNII 1 0
115 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 634 1
116 SN 2015bp SN* 15 05 28.1 +01 38 06           SNIa-norm 39 0
117 SN 2017cne SN* 15 08 42.972 +04 08 45.75           SNIa 5 0
118 AT 2017dtj ev 15 09 55.41 +01 24 08.9           ~ 1 0
119 SN 2021fqb SN* 15 11 05.910 +05 06 26.17           SN.Ia 3 0
120 AT 2018cdh SN* 15 11 42.606 +06 25 12.00           ~ 3 0
121 SN 2016aud SN* 15 13 54.326 +04 45 25.89           SNIa 10 0
122 SN 2019igg SN* 15 19 14.52 +07 51 59.0           SNIa 3 0
123 SN 2021rem SN* 15 19 47.730 +13 41 15.40           SNII 1 0
124 IceCube-191119A ev 15 20.4 +03 10           ~ 24 0
125 SN 2017ng SN* 15 20 40.750 +04 39 34.42           SNIa 5 0
126 SDSS J152120.08+140410.5 G 15 21 20.0794689096 +14 04 10.555029480           ~ 36 0
127 MASTER OT J152333.04+092125.6 SN* 15 23 33.04 +09 21 25.6           SNIa 6 0
128 V* QW Ser CV* 15 26 13.9668843408 +08 18 02.490457464           DA:H: 49 0
129 SN 2018kji SN* 15 26 18.28 +08 57 09.2           SN.Ia 4 0
130 SN 2018bwr SN* 15 28 26.164 +08 48 22.16           SNIIn 6 0
131 SN 2019vv SN* 15 34 03.629 +02 12 39.78           SNIa 3 0
132 SN 2021jwl SN* 15 35 34.263 +05 23 32.02           SNIa 2 0
133 SN 2016afa SN* 15 36 32.47 +16 36 36.6           SNIIP 10 0
134 SN 2017ivu SN* 15 36 32.710 +16 36 20.09           SNIc-BL 10 0
135 SN 2020kpx SN* 15 38 10.150 +04 46 50.41           SNIa 3 0
136 SN 2017cju SN* 15 38 34.050 +13 20 51.56           SNIa 11 0
137 SN 2019zhs SN* 15 38 55.800 +04 34 35.90           SNIa-pec 2 0
138 SN 2017dfb SN* 15 39 05.040 +05 34 16.93           SNIa 10 0
139 SN 2021mim SN* 15 40 21.365 +07 16 53.50           SNIa 4 0
140 AT 2017fwf ev 15 41 56.04 +16 09 04.6           ~ 1 0
141 SN 2021oza SN* 15 43 01.230 +16 59 13.96           SNIa 1 0
142 ASASSN -15dd SN* 15 43 59.070 +19 12 40.74           SNIa 12 0
143 ASASSN -15bk SN* 15 44 12.430 +11 16 16.38           SNIa 9 0
144 ASASSN -15db SN* 15 46 58.8 +17 53 02           SNIa-norm 14 0
145 ASASSN -17ii SN* 15 47 28.900 +11 58 40.40           ~ 3 0
146 AT 2021fnf ev 15 50 35.28 +05 27 10.8           ~ 1 0
147 ASASSN -15bd SN* 15 54 38.33 +16 36 38.1           SNIIP 12 0
148 SN 2020joh SN* 15 55 53.418 +11 58 43.33           SNIa 3 0
149 SN 2017grw SN* 15 57 29.740 +15 52 21.32           SNIa 5 0
150 SN 2021mid SN* 15 58 09.485 +12 02 38.32           SNIa 3 0
151 ASASSN -17bd SN* 15 59 18.430 +13 36 50.89           SNIa 6 0
152 SN 2020fhs SN* 16 01 06.11 +19 26 56.1           SNIa 2 0
153 SN 2020zj SN* 16 01 20.380 +16 40 39.79           SNIa 1 0
154 SN 2019pe SN* 16 01 21.061 +15 26 39.82           SNIa 2 0
155 SN 2019due SN* 16 01 37.593 +16 26 09.37           SN.Ia 2 0
156 SN 2019bjz SN* 16 02 11.826 +15 55 05.43           ~ 4 0
157 IceCube-160427A ev 16 02.3 +09 20           ~ 9 0
158 SN 2021ipb SN* 16 03 32.996 +14 33 08.11           SNIa 3 0
159 SN 2016esh SN* 16 04 14.350 +16 41 24.07           SNIa 9 0
160 ASASSN -13bw CV* 16 05 12.58 +10 22 33.9           ~ 1 0
161 SN 2018fng SN* 16 07 03.010 +15 35 44.68           SNIa 5 0
162 AT 2019fxr ev 16 08 16.03 +06 49 45.7           ~ 1 0
163 CRTS J160824.0+165240 CV* 16 08 24.00 +16 52 40.6           ~ 4 0
164 SN 2017egb SN* 16 08 39.590 +12 00 39.03           ~ 5 0
165 IceCube-200410A ev 16 10.3 +11 37           ~ 16 0
166 AT 2019oqj SN? 16 13 13.157 +17 48 34.68           ~ 2 0
167 SN 2020lsc SN* 16 14 03.750 +14 16 57.50           SNIa 4 0
168 ASASSN -17ae SN* 16 17 02.620 +10 41 36.17           ~ 3 0
169 SN 2021hem SN* 16 21 16.003 +14 33 09.65           SNIa 4 0
170 V* V589 Her CV* 16 22 07.1552961672 +19 22 36.649816140           ~ 31 0
171 SN 2019aja SN* 16 23 08.074 +19 00 20.77           SNIa 4 0
172 ASASSN -17cr SN* 16 23 49.850 +15 04 48.32           SNIa 4 0
173 CRTS J162520.3+120309 CV* 16 25 20.2964446176 +12 03 08.853233040   18.6   17.9   D+M 30 0
174 SN 2021rgw SN* 16 26 42.910 +13 06 49.97           SNIa 4 0
175 AT 2017jn ev 16 29 13.13 +11 39 04.4           ~ 1 0
176 CRTS J163120.9+103134 CV* 16 31 20.8833114864 +10 31 34.105169604           ~ 15 0
177 SN 2020cli SN* 16 31 56.692 +14 02 39.26           SNIa 2 0
178 SN 2020oye SN* 16 32 52.266 +13 30 11.88           SNIa 3 0
179 SN 2019agm SN* 16 36 45.600 +18 41 14.96           SN.Ia 2 0
180 V* V544 Her CV* 16 38 05.3888939352 +08 37 58.442314368           ~ 30 0
181 ASASSN -15dz SN* 16 41 20.870 +08 54 31.66           SNIa 5 0
182 ASASSN -17ja CV* 16 42 04.22 +15 12 18.7           ~ 1 0
183 SN 2019ieh SN* 16 42 10.83 +06 59 02.4           SNIc 3 0
184 ASASSN -20jl ? 16 46 14.62 +17 00 17.4           ~ 1 0
185 ASASSN -15jd CV* 16 49 25.4364260808 +14 02 43.547372088           ~ 9 0
186 AT 2018chp ev 16 49 50.39 +05 36 00.7           ~ 1 0
187 AT 2018fce ev 16 52 51.22 +17 26 50.9           ~ 1 0
188 AT 2020idu CV* 16 53 20.430 +27 26 08.56           ~ 3 0
189 ASASSN -15nz CV* 16 54 09.26 +10 39 19.3           ~ 2 0
190 ASASSN -21qp SN? 16 55 09.547 +26 39 46.73           ~ 2 0
191 SN 2021ezt SN* 16 58 38.990 +26 29 32.42           SN.IIn 1 0
192 ASASSN -20eh ? 16 59 41.70 +27 33 53.8           ~ 1 0
193 ASASSN -17fh CV* 17 02 31.7923254149 +18 53 52.994523462           ~ 3 0
194 IceCube-200530A ev 17 03.3 +26 48           ~ 31 0
195 ASASSN -19px CV* 17 03 19.41 +12 45 54.8           ~ 3 0
196 SN 2017ciy SN* 17 04 06.89 +25 03 09.9           SNIa 6 0
197 SN 2019byw SN* 17 05 08.591 +07 59 26.05           SNIa 4 0
198 SN 2018emi SN* 17 06 36.330 +24 32 43.15           SNIa 10 0
199 SN 2016brw SN* 17 08 26.600 +25 30 51.00           SNII 5 0
200 SN 2019fdr SN* 17 09 06.859 +26 51 20.50           SLSN-II 48 0
201 ASASSN -14ax SN* 17 10 00.700 +27 06 19.61           SNIa 7 0
202 SN 2016ccj SN* 17 10 24.0 +26 23 48           SNIa-norm 15 0
203 ASASSN -17jz SN* 17 19 55.850 +41 40 49.46           SNII 19 0
204 IceCube-201021A ev 17 23.3 +14 33           ~ 20 0
205 ASASSN -20dy CV* 17 24 22.610 +42 40 08.22           ~ 2 0
206 ASASSN -16eg CV* 17 26 10.34 +42 20 02.7           ~ 6 0
207 ASASSN -15nr SN* 17 26 41.840 +13 54 35.47           SNIa 12 0
208 IceCube-201221A ev 17 26.8 +41 49           ~ 21 0
209 IceCube-201007A ev 17 40.7 +05 09           ~ 17 0
210 ASASSN -15fm CV* 17 47 59.8810615380 +03 28 59.789953362           ~ 4 0
211 ASASSN -18kt CV* 17 51 27.39 +03 15 30.8           ~ 2 0
212 2MASS J17525458-1651310 IR 17 52 54.58344 -16 51 31.0248           ~ 2 0
213 IceCube-190221A ev 17 55.2 -17 02           ~ 15 0
214 SN 2018cyh SN* 17 57 48.453 +40 04 34.99           SN.II 3 0
215 MASTER OT J175924.12+252031.7 SN? 17 59 24.12 +25 20 31.7           ~ 4 0
216 ASASSN -20my ? 17 59 58.79 -16 09 27.7           ~ 1 0
217 IceCube-181023A ev 18 00.7 -08 34           ~ 11 0
218 IceCube-210811A ev 18 03.2 +25 17           ~ 4 0
219 RX J1853.1+5945 CV* 18 53 09.5711029272 +59 45 07.094742372   17.9   18.5   ~ 9 0
220 ASASSN -14hi CV* 18 57 46.67 +57 27 14.7           ~ 3 0
221 IceCube-191215A ev 19 07.3 +58 27           ~ 10 0
222 ASASSN -21oy ? 19 40 13.50 +15 05 42.4           ~ 1 0
223 IceCube-200512A ev 19 40.7 +15 47           ~ 11 0
224 ASASSN -19abe CV* 19 44 21.64 +16 24 29.0           ~ 1 0
225 ASASSN -20mb ? 19 47 26.91 +14 43 27.8           ~ 1 0
226 ASASSN -21ld ? 20 16 38.92 +39 51 50.7           ~ 1 0
227 ASASSN -18qo CV* 20 20 10.77 +38 15 54.4           ~ 2 0
228 ASASSN -20dz CV? 20 20 33.35 +38 16 08.7           ~ 2 0
229 IceCube-170312A ev 20 20.6 -26 37           ~ 5 0
230 IceCube-190124A ev 20 29.6 -32 11           ~ 15 0
231 IceCube-201120A ev 20 30.6 +40 43           ~ 16 0
232 ASASSN -13cw CV* 20 52 25.71 +12 16 36.6           ~ 2 0
233 ASASSN -17ji CV* 20 53 44.71 +11 35 51.1           ~ 2 0
234 AT 2018dyd ev 20 56 13.46 +12 51 10.9           ~ 1 0
235 IceCube-191001A ev 20 56.3 +12 56           ~ 37 0
236 2MASX J20570298+1412165 G 20 57 02.9650698480 +14 12 16.295014080           ~ 162 0
237 SN 2017frb SN* 21 11 36.830 +11 29 50.06           SNIa 7 0
238 SN 2018ids SN* 21 16 11.4 +11 56 46           SNIa 5 0
239 AT 2019lvs CV* 21 45 34.903 +20 41 26.12           ~ 4 0
240 SN 2016coi SN* 21 59 04.14 +18 11 10.5           SNIc 67 0
241 SN 2018dzy SN* 22 00 41.710 +19 39 58.34           SNIa 4 0
242 SN 2018ctb SN* 22 01 08.093 +20 03 04.24           SNIa 4 0
243 SN 2020yfw SN* 22 04 49.272 +16 51 23.93           SNIa 2 0
244 ASASSN -18rm CV* 22 05 21.91 +16 43 18.3           ~ 1 0
245 SN 2019kze SN* 22 07 37.661 +22 03 40.13           SN.Ia 2 0
246 SN 2017htb SN* 22 09 38.690 +17 39 40.10           ~ 6 0
247 CRTS J221232.0+160140 CV* 22 12 31.9943191278 +16 01 40.018934675           ~ 10 0
248 AT 2020rng ev 22 12 40.51 +18 03 00.7           ~ 1 0
249 ASASSN -19aae CV* 22 12 59.36 +18 08 10.5           ~ 1 0
250 ASASSN -13bx CV* 22 16 13.80 +01 41 06.9           ~ 2 0
251 SDSS J221814.05-005848.8 CV* 22 18 14.0616197304 -00 58 48.822770568           ~ 6 0
252 ASASSN -19aeb SN? 22 20 21.356 +18 56 38.02           ~ 2 0
253 SDSS J222117.33+194817.7 CV* 22 21 17.3341659110 +19 48 17.705033913           ~ 3 0
254 V* V521 Peg CV* 22 21 44.7931808160 +18 40 08.201442360           ~ 35 0
255 SN 2021vpv SN* 22 22 05.188 +19 52 36.04           SNIa-91T- 1 0
256 SN 2018eoe SN* 22 24 24.4 +18 04 19           SNIb 3 0
257 SN 2018hcr SN* 22 25 59.33 +03 27 29.9           SN.Ia 5 0
258 SN 2019lrc SN* 22 26 27.069 +03 28 31.34           SN.Ia 2 0
259 AT 2019pfq ev 22 28 24.77 +18 53 51.8           ~ 1 0
260 IceCube-190331A ev 22 30.7 -20 42           ~ 15 0
261 IceCube-200523A ev 22 34.6 +01 45           ~ 8 0
262 SN 2016hvu SN* 22 35 55.560 +20 19 12.58           SNII 10 0
263 IceCube-171106A ev 22 40 +07.4           ~ 17 0
264 ASASSN -17ou CV* 22 43 31.10 +11 21 50.7           ~ 3 0
265 V* V650 Peg CV* 22 43 48.4822083120 +08 09 26.919116928   18.08   16.68 18.44 ~ 17 0
266 ASASSN -18um CV* 22 48 11.91 +16 14 09.8           ~ 4 0
267 SN 2018hhn SN* 22 52 32.2 +11 40 27           SNIa-norm 6 0
268 ASASSN -15mu CV* 22 52 33.14 +10 20 25.8           ~ 4 0
269 IceCube-190619A ev 22 53.0 +10 44           ~ 21 0
270 SN 2018coq SN* 22 55 06.251 +11 15 27.63           SNII 4 0
271 CRTS J225843.5+110912 CV* 22 58 43.4810964288 +11 09 12.051240696   18.9   19.4   ~ 26 0
272 SN 2018hom SN* 22 59 22.950 +08 45 04.64           SNIc-BL 5 0
273 SN 2015ah SN* 23 00 24.63 +01 37 36.8           SNII 23 1
274 SN 2020aaxo SN* 23 02 26.463 +01 18 23.99           SNIa 2 0
275 V* HY Psc CV* 23 03 51.6358936128 +01 06 51.155488332   17.5       ~ 29 0
276 SN 2016eqb SN* 23 15 45.480 -01 20 22.73           SNIa 11 0
277 SN 2019edm SN* 23 47 45.212 -27 29 08.17           ~ 3 0
278 IceCube-190104A ev 23 51.9 -26 39           ~ 17 0
279 SN 2018cmt SN* 23 56 55.839 -24 59 47.18           SNIa 4 0
280 IceCube-210629A ev ~ ~           ~ 9 0
281 IceCube-210510A ev ~ ~           ~ 11 0
282 IceCube-210608A ev ~ ~           ~ 5 0
283 IceCube-210717A ev ~ ~           ~ 3 0
284 IceCube-210503A ev ~ ~           ~ 6 0
285 IceCube-210730A ev ~ ~           ~ 5 0
286 IceCube-210516A ev ~ ~           ~ 8 0

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