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Fermi trigger 576241792 / GRB 190406B: MASTER optical observationстатья Электронная публикация
- Авторы: Lipunov V., Gorbovskoy E., Tyurina N., Kornilov V., Vlasenko D., Vladimirov V., Zimnukhov D.
- Журнал: GRB Coordinates Network, Circular Service
- Том: 24133
- Номер: 1
- Год издания: 2019
- Аннотация: MASTER Global Robotic Net (http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, v. 2010, 30L) automatically started inspection of Fermi trigger 576241792 https://gcn.gsfc.nasa.gov/other/576241792.fermi 7843s after trigger time at 2019-04-06 13:20:30 UT MASTER Net cover map is available at http://observ.pereplet.ru/images/MASTER_FermiTrig576241792covermap.jpg MASTER-Tunka robotic telescope located in Russia (Applied Physics Institute, Irkutsk State University) was pointed to the FERMI GRB190406.47 ( 19h 5m 21.60s , +61d 30m 00.00s, R=7.09) 7843 sec after trigger time at 2019-04-06 13:20:30 UT, with upper limit up to 19.8 mag. Observations started at twilight. The observations began at zenit distance = 65 deg. The sun altitude is -14.6 deg. MASTER-Kislovodsk robotic telescope located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started FERMI GRB190406.47 / trigger 576241792 inspection 20777 sec after trigger time at 2019-04-06 16:56:04 UT, with upper limit up to 19.9 mag. Observations started at twilight. The observations began at zenit distance = 74 deg. The sun altitude is -13.8 deg. MASTER-Tavrida robotic telescope located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started FERMI GRB190406.47 inspection 26157 sec after trigger time at 2019-04-06 18:25:44 UT, with upper limit up to 19.5 mag. The observations began at zenit distance = 70 deg. The sun altitude is -22.5 deg. MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory) started FERMI GRB190406.47 inspection 39426 sec after trigger time at 2019-04-06 22:06:53 UT, with upper limit up to 20.1 mag. The observations began at zenit distance = 84 deg. The sun altitude is -34.8 deg. The galactic latitude b = -60 deg., longitude l = 98 deg. MASTER auto-detection system didn't find OT connected with GRB. During inspection we find OT MASTER OT J193011.47+465928.3 detection - preliminary dwarf nova outburst, ampl>4.3m MASTER-Kislovodsk auto-detection system (Lipunov et al., 2010, Advances in Astronomy, v. 2010, 30L) discovered OT source at (RA, Dec) = 19h 30m 11.47s +46d 59m 28.3s on 2019-04-07.95397 UT. The OT unfiltered magnitude is 15.4m (limit 19.0m). The OT is seen in 8 images. There is no minor planet at this place. We have reference image without OT on 2019-02-13.08602 UT with unfiltered magnitude limit 19.6m, on 2016-07-29 21:12:44 with mlim=19.7, it means more then 4.3m of current outburst amplitude (there is USNO-B1 star in 0.3" with B1=19.5,R2=19.3). Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/193011.47465928.3.png We checked coordinates of 4 ZTF candidates (Ahumada et al. GCN24130) in MASTER database and didn't find OT at position of 3 ones since 2009y (up to unfiltered 20.0) About ZTF19aapfxqv MASTER has seen an object at the position
- Добавил в систему: Липунов Владимир Михайлович