[ Previous | Next | ADS ]

MASTER Net: OT in M31 direction and new CV

ATel #11165; V. Shumkov, T. Pogrosheva, V. Lipunov (Lomonosov MSU), R. Rebolo Lopez, M. Serra-Ricart (IAC), D. Buckley(SAAO), E. Gorbovskoy, N. Tiurina, P. Balanutsa, A. Kuznetsov, V. Kornilov, O. Gress, D. Zimnukhov, V. Vladimirov, D. Vlasenko, D. Kuvshinov (Lomonosov Moscow State University, SAI)
on 14 Jan 2018; 11:33 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Transient, Variables

MASTER OT J030057.16-662523.1 discovery - ampl>2.8m

MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L ) discovered OT source at (RA, Dec) = 03h 00m 57.16s -66d 25m 23.1s on 2018-01-11.89176 UT.
The OT unfiltered magnitude is 19.2m (mlim=20.1).
The OT is seen in 9 images. There is no minor planet at this place.
We have reference image on 2015-10-18.99694 UT with unfiltered mlim= 19.9m.
There is GSC2.3.2 star, POSS 22m limit gives ampl>2.8m
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/030057.16-662523.1.png

MASTER OT J004444.23+414244.1 discovery - OT in M31 direction, ampl>2.7m

MASTER-IAC auto-detection system discovered OT source at (RA, Dec) = 00h 44m 44.23s +41d 42m 44.1s on 2018-01-10 19:48:11.705 UT.
The OT unfiltered magnitude is 18.6m (limit 19.5m).
The OT is seen in 20 images on
2018-01-10 19:48:11.705-19:59:41.674UT;
2018-01-11 19:29:47.604- 19:40:52.582UT;
2018-01-13 20:11:50.703-20:22:58.955UTUT.
There is no minor planet at this place.
We have reference image without OT on 2018-01-04 19:38:12UT with unfiltered mlim=19.8; on 2016-07-04.19304 UT with 21.3 unfiltered magnitude limit.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/004444.23414244.1.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net