Support ATel At Patreon

[ Previous | Next | ADS ]

MASTER-SAAO: new OT, MASTER-OAFA: possible CV

ATel #12059; P. Balanutsa, O. Gress, V. Lipunov (Lomonosov MSU), D. Buckley (SAAO), R. Podesta, C. Lopez, F. Podesta (OAFA), H. Levato (ICATE), R. Rebolo, M. Serra-Ricart (Instituto de Astrofisica de Canaries), V. Kornilov, E. Gorbovskoy, N. Tiurina, A. Kuznetsov, D. Vlasenko, D. Zimnukhov, V. Senik, A. Gabovich, V. Shumkov, T. Pogrosheva (Lomonosov MSU, SAI)
on 24 Sep 2018; 23:44 UT
Credential Certification: Nataly Tyurina (tiurina@sai.msu.ru)

Subjects: Optical, Request for Observations, Cataclysmic Variable, Transient, Variables

MASTER OT J140442.51-760155.3 discovery - ampl>4.3m

MASTER-SAAO auto-detection system ( Lipunov et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L )
discovered OT source at (RA, Dec) = 14h 04m 42.5s -76d 01m 55.3s on 2018-09-20 19:10:54.255UT.
The OT unfiltered magnitude is 17.7m (mlimit=19.5m). The OT is seen in 11 images (2018-09-20 19:10:54.255-20:17:18.276UT).
There is no minor planet at this place.
We have reference image without OT on 2014-12-25 01:08:00UT with 20.1 unfiltered magnitude limit.
There is no sources in VIZIER database so the current outburst amplitude is more then 4.3

Spectral observations and deep photometry are required.
The discovery and reference images are available at
http://master.sai.msu.ru/static/OT/MASTEROTJ140442.5-760155.3.jpg

MASTER OT J013730.51-585139.8 detection - ampl>2.5m

MASTER-OAFA auto-detection system discovered OT source at (RA, Dec) = 01h 37m 30.51s -58d 51m 39.8s on 2018-09-03.27468 UT.
The OT unfiltered magnitude is 17.5m (mlim=18.9m).
The OT is seen in 4 images. There is no minor planet at this place.
There is m_OT=17.7 on 2018-09-15 00:06:25.184UT at MASTER-SAAO images
We have reference image without OT on 2016-11-30.13988 UT with 19.9 unfiltered magnitude limit (MASTER-OAFA), on 2015-09-06 00:49:00(MASTER-SAAO).
Spectral observations are required.

The discovery and reference images are available at:
http://master.sai.msu.ru/static/OT/013730.51-585139.8.png

MASTER Global Robotic Net