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МАСТЕР обнаружил оптический источник всплеска GRB 200107B



МАСТЕР первым нашел оптический источник (циркуляр МАСТЕРа вышел ДО циркуляра Свифта)  гамма-всплеска GRB200107B   (Lipunov et al. GCN 26660)


NUMBER:  26660
SUBJECT: Swift GRB200107.81: Global MASTER-Net OT detection 
DATE:    20/01/07 20:12:57 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>

MASTER-SAAO robotic telescope  (Global MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L)  located in South Africa (South African Astronomical 
Observatory) was pointed to the Swift GRB200107.81 (trigger No 948219,07h 
08m 15.74s , -83d 42m 56.5s, R=0.05) errorbox  18 sec after notice time 
and 69 sec after trigger time at 2020-01-07 19:27:38 UT, with upper limit 
up to  17.7 mag. The observations began at zenith distance = 54 deg. The 
sun  altitude  is -18.0 deg.

We detect a new optical transient at a position 
Ra=07h 07m 37.58s
Dec= -83° 43' 07.0"

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