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MASTER Net: OTs detection during GRB error-boxes inspections and QSO flares

ATel #11225; T. Pogrosheva, P. Balanutsa, O. Gres, V. Lipunov (Lomonosov MSU), R. Podesta (OAFA), H. Levato (ICATE), E. Gorbovskoy, V. Kornilov, N. Tiurina, A. Kuznetsov, V. Chazov, D. Vlasenko, V. Vladimirov, I. Gorbunov, A. Krylov (Lomonosov Moscow State University, SAI), C. Lopez, F. Podesta (Observatorio Astronomico Felix Aguilar San Juan University), C. Saffe (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio), V. Senik (KSS), A. Gabovich (BSPU)
on 25 Jan 2018; 02:16 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Gamma Ray, Request for Observations, AGN, Cataclysmic Variable, Gamma-Ray Burst, Quasar, Supernovae, Transient, Variables

Referred to by ATel #: 11226, 11283

MASTER OT J002844.97+233329.3 discovery - OT during GRB180113B (IPN) inspection

During GRB180113B (IPN triangulation) inspection (Svinkin et al. GCN #22354, IPN map )
MASTER-Kislovodsk auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 00h 28m 44.97s +23d 33m 29.3s on 2018-01-14.64970 UT.

The OT unfiltered magnitude is 19.3m (limit 19.8m)
The OT is seen in 2 images (MASTER IPN inspection mode) at
2018-01-14 15:35:34UT +180s exposition
2018-01-14 15:51:47UT +180s exposition
There is no minor planet at this place.

MASTER-Kislovodsk reobserved it automatically on 2018-01-16 15:32:23UT with m_lim=20.1(no OT). We have reference image without OT on 2014-09-30.90519 UT with unfiltered magnitude limit 20.5m.

There is Sloan disk galaxy in 1.48" with rmag=20.08
Deep photometry is required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/002844.97233329.3.png

MASTER OT J141021.86+391928.4 discovery - PSN during Fermi/Maxi long GRB180116A inspection

During Fermi trigger inspection (Stanbro et al. GCN #22356, also publishied as MAXI/GSC GRB, see Kawai et al. GCN #22347)
MASTER-Kislovodsk auto-detection system discovered optical transient - possible supernova - at (RA, Dec) = 03h 00m 57.16s -66d 25m 23.1s on 2018-01-11.89176 UT.
The OT unfiltered magnitude was 18.3m (mlim=19.5) on 2 images.
This OT is in 1.2" of Sloan galaxy with rmag=20.6 http://skyserver.sdss.org/dr9/en/tools/quicklook/quickobj.asp?id=1237662195072565919 (2 sources).
MASTER-Tavrida reobserved it at 2018-01-25 00:08:46UT with unfiltered m_OT=17.8 (mlim=19.9)

We have reference image on 2015-02-27.01593 UT with unfiltered mlim= 20.5m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/141021.86391928.4_2.png

MASTER OT J022821.64-554603.8 detection - PKS0226-559 flare

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 02h 28m 21.64s -55d 46m 03.8s on 2018-01-22.21072 UT.
The OT unfiltered magnitude is 16.7m (mlim=18.9m).
The OT is seen in 3 images. There is no minor planet at this place. Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/022821.64-554603.8.png

MASTER OT J105951.22+215309.0 detection - QSO flare (ampl>2.9mag)

MASTER-Kislovodsk auto-detection system discovered OT source at (RA, Dec) = 10h 59m 51.22s +21d 53m 09.0s on 2018-01-14.97105 UT.
The OT unfiltered magnitude is 19.1m (limit 20.1m).
The OT is seen in 3 images. There is no minor planet at this place.
We have reference image without OT on 2015-04-16.85825 UT with unfiltered magnitude limit 20.6m.
Spectral observations are required.
The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/105951.22215309.0_2.png

List of Optical Transients discovered by MASTER

MASTER Global Robotic Net