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IceCube Alert 220220.60:NuEm-220220A: MASTER optical possible counterpartстатья Электронная публикация
- Авторы: Gress O., Budnev N.M., Lipunov V., Tiurina N., Zhirkov K., Kuznetsov A.S., Balanutsa P., Chasovnikov A., Antipov G., et al.
- Журнал: GCN circular
- Том: 31620
- Год издания: 2022
- Первая страница: 1
- Аннотация: MASTER Global Robotic Net (Lipunov et al. 2010, Advances in Astronomy, v.2010, 30L) started IceCube 20220220.60/AMON NuEm-220220A alert (GCN #31615, https://gcn.gsfc.nasa.gov/other/icecube_220220A.gcn3 ) optical observations 25 sec after notice time (618s after trigger time) at 2022-02-20 14:29:55 UT at MASTER-Amur (Lipunov et al. GCN #31616) and observed it in MASTER-OAGH (Mexico), -SAAO (South Africa), -OAFA (Argentina), see cover map https://master.sai.msu.ru/site/master2/event.php?id=1889478 \textbackslash There is a blazar 5BZBJ1442+1200 (RA=220.70117d DEC=12.01119d) 1.5 degrees from the center of the event that shows moderate dimming that started 10 days before the neutrino according to public ATLAS data (https://fallingstar- data.com/forcedphot/queue/169872/plot.pdf).\textbackslash There was IC-201014A in this region (IC GCN #28624, MASTER GCN #28627 ). Due to this dimming we are inclined to believe that 5BZBJ1442+1200 might be a source of NuEM-220220A even though it is largely outside the error-box. The analysis will be continued. Additional observations are planned.
- Добавил в систему: Липунов Владимир Михайлович