{
  "bibcode": "2017GCN.20715....1L",
  "body": "V.M.  Lipunov,  E. Gorbovskoy, T.Pogrosheva, N.Tyurina,  P.Balanutsa, \nV.Shumkov, V. Kornilov, A.Kuznetsov, M.I.Panchenko, A.V.Krylov, I.Gorbunov\nLomonosov Moscow State University, Sternberg Astronomical Institute\n\nN.M. Budnev, O. Gress, K. Ivanov, S.Yazev\nIrkutsk State University\n\nR.Podesta, C.Lopez, F. Podesta\nObservatorio Astronomico Felix Aguilar (OAFA) , National University of San \nJuan, Argentina\n\nH. Levato, C. Saffe\nInstituto de Ciencias Astronomicas,de la Tierra y del Espacio (ICATE),\nSan Juan, Argentina\n\nD.Buckley, S. Potter, M. Kotze,\n   South African Astronomical Observatory\n\nR. Rebolo, M. Serra-Ricart, G. Israelian, N.Lodiu\nThe Instituto de Astrofisica de Canarias\n\nA. Tlatov, V.Sennik\nKislovodsk Solar Station of the Pulkovo Observatory\n\nV.Yurkov, Yu.Sergienko, A.Gabovich\nBlagoveschensk Educational State University, Blagoveschensk\n\nDuring inspection of LIGO event G274296 (Shawhan et al.\nGCN20689, Lipunov et al. GCN20696, GCN20712) MASTER-Tunka  detected the \nfollowing additional optical transients:\n\n1) MASTER OT J144935.82+343749.9 discovery - PSN (18.0m) in SDSS \ngalaxy(r=20.9)\n\nDuring GW inspection survey MASTER-Tunka auto-detection system discovered \nOT source at (RA, Dec) = 14h 49m 35.82s +34d 37m 49.9s on 2017-02-21.77409UT.\n\nThe OT unfiltered magnitude is 18.0m (mlimit 19.4m).\n\nThe OT is seen in 2 images. There is no minor planet at this place.\n\nThere is SDSS galaxy with red m=20.94 http://skyserver.sdss.org/dr9/en/tools/quicklook/quickobj.asp?id=1237662226228118204\n\nWe have reference image without OT on 2016-12-05.94591 UT with unfiltered \nmagnitude limit m=20.0m.\n\nSpectral observations are required.\n\nThe discovery and reference images are available at:\nhttp://master.sai.msu.ru/static/OT/144935.82343749.9.png\n\n\n\nMASTER OT J082950.02+274024.3 - possibly QSO outburst\n\nDuring GW inspection survey MASTER-Tunka auto-detection system discovered \nOT source at (RA, Dec) = 08h 29m 50.02s +27d 40m 24.3s on 2017-02-21.56417 UT.\nThe OT unfiltered magnitude is 19.1m (limit 20.1m).\n\nThe OT is seen in 3 images. There is no minor planet at this place.\n\nWe have reference image without OT on 2015-11-19.71169 UT with unfiltered \nmagnitude limit m=20.1m.\n\nThere is GALEX source in 0.8\" and this OT is in 1\" from\tSDSS DR10 \ncatalogue of candidate quasars (Brescia+, 2015), i.e. our OT is QSO in \noutburst.\n\nSpectral observations are required.\n\nThe discovery and reference images are available at:\nhttp://master.sai.msu.ru/static/OT/082950.02274024.3.png",
  "circularId": 20715,
  "createdOn": 1487718533000,
  "email": "lipunov2007@gmail.com",
  "subject": "LIGO/Virgo G274296: Global MASTER Net PSN and QSO detection",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov2007@gmail.com>",
  "eventId": "LIGO/Virgo G274296"
}