TITLE: GCN CIRCULAR NUMBER: 27070 SUBJECT: LIGO/Virgo S200213t: No counterpart candidates from Nanshan-0.6m observations DATE: 20/02/14 18:53:26 GMT FROM: Dong Xu at NAOC/CAS D. Xu, Z.P. Zhu, X. Liu, B.Y. Yu, H.J. Wang, L. Ge, C.Z. Cui, Y.F. Xu, T.M. Zhang, X. Zhou, (NAOC), X. Gao (Urumqi No.1 Senior High School), S. Yang (Stockholm U.), H.B. Zhao, B. Li (PMO), J.Z. Liu, X. Zhang (XAO), J.R. Mao (YNAO) report on behalf of the GWFUNC collaboration: In the night of 2020-02-13, we first observed the 16 NED galaxy fields of LIGO/Virgo S200213t (GCN #27042) + IceCube neutrino candidate (GCN #27043), as reported in GCN #27047, using the NEXT 0.6m optical telescope, located at Nanshan, Xinjiang, China. Observations started at 13:19:16 UT and ended at 14:27:36 UT in the Sloan r-filter, and each field was imaged twice with 90 sec for each exposure. Typical limiting magnitude is r~19.0. Subsequently we observed 120 GLADE galaxy fields that are selected according to the probability skymap of LIGO/Virgo S200213t, the galaxy distance within the 3sigma limit, the B-band absolute magnitude for the galaxy < -18, as well as the observable altitude > ~20 deg. Observations were again taken in the Sloan r-filter, with 90 sec for each exposure. Typical limiting magnitude is r~19.0. The list of the observed galaxies is given below. Galaxy_Name R.A.(deg) Dec.(deg) Dist(Mpc) M_B GL00410559+5020596 10.27333 50.34990 295.58 -20.30 GL01133253+5515015 18.38556 55.25044 288.89 -19.91 GL01034582+5730374 15.94093 57.51041 303.28 -20.28 GL01212232+5912170 20.34303 59.20474 234.82 -19.26 GL01060074+5732009 16.50312 57.53359 145.83 -20.30 GL00575274+4850369 14.46978 48.84361 251.04 -20.20 GL01242568+5912446 21.10700 59.21240 264.02 -20.55 GL00461573+5130239 11.56556 51.50666 287.05 -20.65 GL01174717+5159283 19.44656 51.99122 315.92 -20.53 GL01281451+5910375 22.06049 59.17711 120.19 -19.63 GL01230059+5512035 20.75249 55.20097 323.84 -20.41 GL01125842+5730428 18.24345 57.51190 215.37 -19.81 GL01143751+5725468 18.65629 57.42967 358.31 -20.85 GL00342296+4948170 8.59568 49.80473 66.74 -18.56 GL00530055+5020315 13.25232 50.34211 79.53 -19.45 GL01273606+5515383 21.90027 55.26065 80.67 -18.99 GL00592237+5131224 14.84322 51.52291 130.21 -18.04 GL01204709+5725326 20.19623 57.42573 281.89 -21.01 GL01384386+5911064 24.68276 59.18513 310.01 -20.87 GL00583640+5027498 14.65167 50.46384 289.90 -21.02 GL00331360+4645013 8.30671 46.75037 207.42 -19.70 GL01172389+6056245 19.34955 60.94017 324.08 -20.13 GL01011268+5027319 15.30283 50.45887 186.99 -20.50 GL01110139+5220280 17.75580 52.34112 327.98 -20.33 GL01344735+5157212 23.69732 51.95591 229.92 -19.98 GL01101769+5125501 17.57371 51.43060 246.46 -19.51 GL00475975+4948595 11.99897 49.81654 148.94 -20.17 GL01421791+5513022 25.57464 55.21729 205.59 -20.96 GL01433282+5510459 25.88677 55.17944 380.55 -20.50 GL01442052+5508501 26.08553 55.14726 284.44 -20.90 GL01183234+5551083 19.63478 55.85233 119.99 -19.91 GL00430939+4648314 10.78914 46.80874 299.44 -20.89 GL00435971+4648338 10.99882 46.80940 236.67 -20.77 GL00444381+4644478 11.18258 46.74663 211.81 -19.87 GL01184793+5127462 19.69974 51.46285 143.83 -20.29 GL01422918+5730133 25.62161 57.50372 107.60 -19.67 GL01144438+5027094 18.68492 50.45263 128.25 -18.68 GL00434180+5226314 10.92417 52.44206 151.92 -18.56 GL01172570+5022512 19.35710 50.38090 97.30 -20.33 GL01252822+5130299 21.36761 51.50833 352.84 -20.49 GL00502343+5444363 12.59766 54.74343 93.31 -19.30 GL00542554+4642347 13.60642 46.70965 176.06 -20.20 GL01540363+5728127 28.51515 57.47021 424.54 -20.79 GL00395816+4534239 9.99235 45.57333 213.80 -20.22 GL01213941+5315288 20.41425 53.25800 267.61 -21.55 GL01223711+5314207 20.65466 53.23909 136.21 -20.26 GL00410855+5316416 10.28565 53.27823 270.03 -19.76 GL00542451+5123343 13.60215 51.39287 104.03 -19.93 GL01294222+5023095 22.42590 50.38596 89.33 -19.86 GL01122684+4949445 18.11187 49.82903 152.31 -20.34 GL01274813+5321445 21.95057 53.36239 339.92 -21.17 GL02004334+6059449 30.18060 60.99581 208.30 -21.30 GL01161034+4952100 19.04309 49.86946 301.02 -20.88 GL01052909+5224528 16.37125 52.41468 263.13 -20.53 GL01341630+5320302 23.56792 53.34174 169.84 -19.15 GL01082772+5222341 17.11551 52.37615 336.11 -20.44 GL01211814+4948037 20.32559 49.80104 315.85 -20.59 GL01372343+5317515 24.34764 53.29766 285.73 -19.61 GL01175368+5432325 19.47367 54.54237 215.24 -19.89 GL01131402+5226144 18.30846 52.43736 128.30 -20.23 GL01150037+5225564 18.75156 52.43236 112.42 -19.50 GL01434654+5316206 25.94392 53.27240 261.11 -21.47 GL00583960+5002425 14.66503 50.04516 85.01 -20.69 GL01003319+5241549 15.13831 52.69859 267.84 -20.76 GL01221529+5224550 20.56373 52.41530 312.19 -21.23 GL01243181+5223493 21.13257 52.39705 324.90 -20.01 GL01252477+5222580 21.35322 52.38278 302.65 -20.54 GL01073402+5359379 16.89176 53.99387 304.19 -19.99 GL00562909+5224271 14.12124 52.40754 103.75 -18.63 GL00591838+5016187 14.82662 50.27186 131.54 -20.12 GL01305475+5412455 22.72814 54.21266 297.88 -20.38 GL01330184+5224545 23.25767 52.41515 257.42 -20.52 GL01245620+5432186 21.23418 54.53851 105.89 -20.52 GL01015265+5924475 15.46940 59.41321 184.57 -20.26 GL01050655+5929246 16.27733 59.49019 315.56 -20.42 GL01014789+5128138 15.44956 51.47051 261.00 -19.91 GL01115172+5928373 17.96553 59.47705 307.34 -20.45 GL00511775+5611426 12.82399 56.19517 295.41 -20.23 GL00530999+5615243 13.29166 56.25677 316.08 -20.37 GL01291424+5158552 22.30934 51.98203 318.34 -20.52 GL01281694+5929022 22.07060 59.48396 298.37 -19.92 GL01121331+5955414 18.05550 59.92818 291.49 -19.69 GL01262972+5923369 21.62386 59.39361 373.13 -20.53 GL01032872+5614324 15.86970 56.24234 180.66 -20.20 GL01423598+5417334 25.64994 54.29261 141.80 -20.87 GL01432226+5930019 25.84275 59.50054 328.61 -20.72 GL01040289+5919003 16.01205 59.31678 170.74 -19.38 GL01470616+5931206 26.77569 59.52240 113.26 -18.17 GL01561522+5932363 29.06344 59.54342 319.31 -20.48 GL01583167+5925229 29.63198 59.42304 305.33 -19.85 GL01412969+5612438 25.37374 56.21217 261.90 -19.35 GL01431008+5446598 25.79203 54.78328 330.75 -20.91 GL01502384+5613049 27.59936 56.21803 189.20 -20.09 GL01215887+5538133 20.49532 55.63703 96.39 -19.16 GL01134004+6031353 18.41686 60.52649 91.70 -19.07 GL01310388+5532096 22.76619 55.53601 195.38 -19.31 GL01313530+5534046 22.89710 55.56794 175.54 -19.30 GL01325027+5535520 23.20946 55.59779 159.76 -19.26 GL01231913+6029355 20.82972 60.49321 239.39 -19.72 GL01370732+5534325 24.28054 55.57571 249.07 -19.81 GL01384099+5534414 24.67079 55.57819 274.65 -20.88 GL01471291+5707276 26.80382 57.12435 381.46 -20.34 GL01405953+6021130 25.24806 60.35363 217.79 -20.11 GL01440860+5946120 26.03584 59.77003 215.23 -19.92 GL01451454+5949020 26.31060 59.81725 294.78 -20.34 GL01194420+6043069 19.93419 60.71859 259.04 -20.36 GL01383197+5652414 24.63321 56.87819 202.71 -19.02 GL01524731+5655069 28.19713 56.91860 301.75 -21.16 GL01575361+5843286 29.47340 58.72464 155.53 -20.85 GL01470751+5914576 26.78132 59.24934 297.45 -20.38 GL01344887+6043329 23.70365 60.72583 92.39 -18.87 GL01531807+5915358 28.32532 59.25997 119.58 -20.78 GL01525926+5834286 28.24694 58.57464 204.72 -19.25 GL01554543+5822323 28.93932 58.37565 295.40 -20.61 GL01574657+5829567 29.44406 58.49910 386.86 -20.12 GL01532514+5812179 28.35478 58.20497 383.78 -20.43 GL01511041+5841163 27.79341 58.68787 408.56 -19.80 GL01590512+5843327 29.77135 58.72576 325.94 -20.08 GL01543478+5752397 28.64494 57.87772 310.87 -20.38 GL01580404+5858448 29.51685 58.97912 406.74 -20.55 Preliminary analysis doesn't reveal any credible optical counterpart in all the above galaxies. Full analysis is still ongoing.