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MASTER: blue OT and CVстатья
- Авторы: Balanutsa P., Gress O., Shumkov V., Pogrosheva T., Lipunov V., et al.
- Журнал: The Astronomer’s Telegram
- Том: 10915
- Номер: 1
- Год издания: 2017
- Первая страница: 1
- Аннотация: MASTER075353.88+174907.6 discovery - new blue OT, ampl>4.4m MASTER-IAC auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 07h 53m 53.88s +17d 49m 07.6s on 2017-10-31.20911 UT. The OT magnitude in B filter is 18.6m (limit 19.6m). The OT is seen in 6 images. There is no minor planet at this place. We have reference image without OT on 2016-12-07.11829 UT with unfiltered magnitude limit 20.7m. There is only GALEX source inside 5" in VIZIER database. This area was covered by Sloan survey with blue limits of stars and galaxies less then 23m, it means the ampl of current outburst is more then 4.4m. Spectral observations and deep photometry are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/075353.88174907.6.png MASTER OT J174408.16-582236.5 discovery - CV, ampl>2.7m MASTER-SAAO auto-detection system discovered OT source at (RA, Dec) = 17h 44m 08.16s -58d 22m 36.5s on 2017-10-27.76733 UT. The OT unfiltered magnitude is 17.1m (mlim=18.3). The OT is seen in 8 images. There is no minor planet at this place. We have reference image on 2016-10-22.78911 UT with unfiltered mlim=19.8m, it means the ampl of curent outburst more then 2.7m Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/174408.16-582236.5.png MASTER OT J072347.15+041144.4 detection- ampl>4.8m MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 07h 23m 47.15s +04d 11m 44.4s on 2017-10-26.31941 UT. The OT unfiltered magnitude is 17.2m (mlim=19.0m). The OT is seen in 2 images. There is no minor planet at this place. We have reference image without OT on 2017-10-01.34252 UT with unfiltered magnitude limit 18.6m. There is GSC2.3.2 star, it means 22m POSS limit in history and more then 4.8m of current outburst ampitude. Spectral observations are required. The discovery and reference images are available at: http://master.sai.msu.ru/static/OT/072347.15041144.4.png
- Добавил в систему: Липунов Владимир Михайлович