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MASTER short OT discovery during Fermi trigger 576054086/GRB190404.29 (bright hard) inspectioстатья
- Авторы: Pogrosheva T., Lipunov V., Gorbovskoy E., Tyurina N., Kornilov V., Vlasenko D., Vladimirov V.
- Журнал: The Astronomer’s Telegram
- Том: 12637
- Год издания: 2019
- Первая страница: 1
- Последняя страница: 1
- Аннотация: MASTER OT J071404.52+550304.2 discovery in PGC020455 - short variable OT, preliminary optical counterpart of GRB190404.29 During FERMI trigger 576054086/GRB190404.29 inspection (07h 09m 04.08s,+55d 16m 01.20s, R=11.45deg. Ttrig=2019-04-04 07:01:21.93 UT) MASTER-Tavrida auto-detection system (Global MASTER-Net http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy,vol. 2010, 30L) discovered OT source at (RA, Dec) = 07h 14m 04.52s +55d 03m 04.2s on 2019-04-04.78094 UT (Lipunov et al. GCN #24058). The OT unfiltered magnitude is 18.5 (limit 19.8m). There are only 2 images (MASTER inspect mode of large error-fields observations)at this night: Date_UT, unfiltered_mag (W=0.2B+0.8R by USNO-B1 thousands field stars) 2019-04-04 18:36:58.335 18.5 +-0.2 2019-04-04 18:44:33.528 18.3 +-0.2 There is no OT in 24h: at 2019-04-05 19:02:36UT with mlim=19.8 (MASTER-Tavrida) This OT is in 21.2W,55.1N from the center of bright (Btc=15mag) galaxy PGC020455. We have also reference image (without OT) on 2017-08-03.00720 UT with unfiltered magnitude limit 19.6m. Deep photometry and spectroscopy are required. The discovery and reference images are available at http://observ.pereplet.ru/images/MASTEROTJ071404.52+550304.2.jpg MASTER cover map of Fermi trigger inspection is http://observ.pereplet.ru/images/MASTERGRB180404.29map.jpg http://www.astronomerstelegram.org/?read=12637
- Добавил в систему: Липунов Владимир Михайлович