|
ИСТИНА |
Войти в систему Регистрация |
ФНКЦ РР |
||
GRB 170202A: Mini-MegaTORTORA upper limitsстатья
- Авторы: Karpov S., Beskin G., Bondar S., Ivanov E., Katkova E., Orekhova N., Perkov A., Biryukov A., Sasyuk V.
- Журнал: GRB Coordinates Network
- Том: 20577
- Год издания: 2017
- Аннотация: Mini-MegaTORTORA nine-channel wide-field monitoring system with high temporal resolution responded to the BAT trigger and observed the position of GRB 170702A (Racusin et al. GCN 20575) since 2017-02-02 18:28:50 UT (T+47.8 s) and until 2017-02-02 18:39:04 UT (T + 662.0 s). The system acquired a series of 5 s exposure frames with all 9 channels pointed to the object location in white light, with and without polarimetric filters installed. No transient object is detected over this interval, with detection limit on a single frame V=13.0 mag. Co-adding 9 simultaneous frames improves the detection limit to V=14.0 mag at the mid-time of first exposure (Tmid = T+50.3 s, 5 s exposure).
- Добавил в систему: Бирюков Антон Владимирович