MASTER optical analysys of IceCube 190331A alert
ATel #12627; O. Gress, V. Lipunov, E. Gorbovskoy, V. Kornilov, D. Vlasenko, N. Tiurina, P. Balanutsa, A. Kuznetsov, D. Zimnukhov, V. Vladimirov, D. Kuvshinov (Lomonosov Moscow State University, SAI), D. Buckley (SAAO), R. Podesta, C. Lopez, C. Francile, F. Podesta (OAFA, SJNU), H. Levato (ICATE, SJNU), R. Rebolo, M. Serra (IAC), N. M. Budnev (API ISU), V. Yurkov, A. Gabovich, Yu. Sergienko(BSPU), A. Tlatov, V. Senik, D. Dormidontov (KSS of Pulkovo observatory)
on 3 Apr 2019; 17:56 UT
Distributed as an Instant Email Notice Transients
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)
Subjects: Optical, Neutrinos, Transient
MASTER-OAFA robotic telescope (Global MASTER-Net http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy,vol. 2010, 30L)
located in Argentina (OAFA observatory of San Juan National University)
started inspect of IceCube 190331A error-box (GCN #24028, ATel #12616 (error box center RA,Dec=337.68deg, -20.70deg, Ttrig=2019-03-31 06:55:43.44 UT), also analyzed by Fermi-LAT in GCN #24040, ATel #12619, ATel #12624 and by AGILE in ATel #12623)
at 2019-04-01 09:04:32UT with mlim=19.1 (Lipunov et al. GCN #24034).
Error-box was reobserved at MASTER-SAAO at 2019-04-02 03:45:33UT with unfiltered mlim=19.2 (observation conditions: error-box_altitude=27 deg, sun_alt=-14deg., Distance to Moon=8 deg!)
and at MASTER-OAFA at 2019-04-02 08:32:20UT with unfiltered mlim=19.3m (error-box_altitude=12 deg, Distance to Moon=9 deg!)
There are the following sources (Simbad) inside error-box:
4 X-ray sources: 2E 2228.4-2041, [TSA98] J222939.80-205009.91, 1RXS J223015.7-202303, 2E 2229.2-2107;
Radio sources: NVSS J223134-203532, PMN J2229-2049, EQ J2229-2054, etc.
and Galaxies (without significant current brightness variability):
RA,Dec(2000), magnitude, name
22h 31m 38.77s -20d 32m 22.02s 16.37 PGC069066
22h 30m 38.08s -20d 55m 27.17s 16.81 PGC835085
22h 32m 22.83s -20d 30m 17.88s 16.81 PGC069093
22h 30m 23.36s -20d 43m 08.54s 16.87 2MASS22302334-2043081
22h 30m 36.08s -20d 31m 42.76s 16.88 PGC840458
22h 30m 08.90s -20d 45m 06.26s 17.28 PGC837430
22h 31m 04.40s -20d 26m 46.71s 17.47 2MASS22310439-2026465
22h 29m 09.79s -20d 47m 19.16s 17.54 2MASS22290968-2047179
22h 29m 09.53s -20d 47m 14.34s 17.55 2MASS22290968-2047179
22h 31m 03.82s -20d 39m 24.36s 17.65 PGC838697
22h 30m 30.01s -20d 58m 16.05s 17.70 PGC834421
22h 30m 45.20s -20d 41m 18.22s 17.73 PGC838266
22h 31m 13.25s -21d 3m 33.60s 17.77 PGC833229
22h 31m 53.08s -20d 18m 56.56s 17.82 PGC843412
22h 31m 56.78s -20d 29m 41.88s 17.82 PGC840955
22h 32m 34.03s -20d 52m 20.45s 17.82 PGC835844
22h 32m 23.34s -20d 46m 49.29s 17.86 PGC837064
22h 29m 27.14s -20d 27m 27.83s 17.87 PGC841495
22h 32m 12.76s -20d 29m 17.51s 17.90 PGC841050
22h 31m 21.57s -20d 21m 01.18s 18.09 PGC842958
There is NGC 7293 (Helix Nebula) inside IC error-box with 10^4 yrs age http://master.sai.msu.ru/static/IC/MASTERIceCube-190331A.jpg
MASTER covermap is available at
http://master.sai.msu.ru/static/IC/MASTERIC190331A_cmap.jpg
There is no OT, connected with IC alert was found from preliminary analysys, but reduction will be continued.
MASTER Global Robotic Net
