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MASTER: 2 new OTs, amplitude more then 4mстатья
- Авторы: Ershova O., Gorbovskoy E., Lipunov V., Buckley D., Podesta R., Podesta F., Francile C.
- Журнал: The Astronomer’s Telegram
- Номер: 12549
- Год издания: 2019
- Первая страница: 1
- Последняя страница: 1
- Аннотация: MASTER OT J133101.09-481304.6 discovery - preliminary dwarf nova outburst, ampl>4m MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 13h 31m 01.09s -48d 13m 04.6s on 2019-03-01 00:31:33UT. The OT unfiltered magnitude is 18.0m (mlim=19.6). There is m_OT=18.0 on 2019-03-04.08563UT. The OT is seen in 7 images. There is no minor planet at this place. We have reference image on 2016-05-27.84843 UT with unfiltered mlim= 20.1m. There is no OT in VIZIER database , it means 22m POSS limit and more then 4mag of current outburst amplitude Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/133101.09-481304.6.png MASTER OT J092049.53-702405.6 discovery - prelim. dwarf nova outburst, ampl>4.2m MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 09h 20m 49.53s -70d 24m 05.6s on 2019-03-01 20:09:21 UT. The OT unfiltered magnitude is 17.8m (mlim=19.8). There is m_OT=17.9 on 2019-03-02.85282UT. The OT is seen in 11 images. There is no minor planet at this place. We have reference image on 2015-10-21.04541 UT with unfiltered mlim=20.3m. There is no OT with unfiltered upper limit 18.4m on 2019-02-26 00:31:39UT There is no any optical transient inside 5" in VIZIER database (it means 22m POSS limit and more then 4.2mag of current outburst amplitude Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/092049.53-702405.6.png MASTER OT J202715.17+221016.0 detection - OT with ampl>4mag MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 20h 27m 15.17s +22d 10m 16.0s on 2019-03-04.06226 UT . The OT unfiltered magnitude is 18.0m (limit 18.2m). The OT is seen in 2 images. There is no minor planet at this place. We have reference images without OT on 2018-12-25 19:31:41UT with 18.6 unfiltered magnitude limit (MASTER-IAC), on 2014-07-07.99855 UT with unfiltered magnitude limit 19.5m (MASTER-Kislovodsk). There is no USNO-B1 sources, but there is PanSTARRS source in 0.5" with rmag=21.997+-0.254m. Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/202715.17221016.0.png
- Добавил в систему: Липунов Владимир Михайлович