[vsnet-alert 22300] MASTER OT J113218.1-301832.6: long outburst from a nearby dwarf

[Taichi Kato]

MASTER OT J113218.1-301832.6: long outburst from a nearby dwarf

   This object is a nearby dwarf.  Gaia parallax = 21.6mas.
Long outburst (flare?) is unusual for such a dwarf and
observations are needed.

   This object has a common proper motion object
2MASS 113218.317 -301951.81 (2000.0) 9.641 9.030 8.765, Gaia G=15.23

===

ATEL #11841							     ATEL #11841

Title:	MASTER-OAFA: AGN outburst
Author:	 N. Tiurina, V. Lipunov (Lomonosov MSU), R. Podesta (OAFA),
		H. Levato (ICATE), D. Buckley(SAAO), V. Kornilov, E. Gorbovskoy, I.
		Gorbunov, A. Kuznetsov, V. Chazov, D. Vlasenko, V. Vladimirov, O.
		Gress, V. Senik, D. Zimnuhov (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), T. Pogrosheva
Queries:	tiurina at sai.msu.ru
Posted:	11 Jul 2018; 19:22 UT
Subjects:Optical, Request for Observations, AGN, Blazar, Quasar, Transient

MASTER OT J113218.1-301832.6 - AGN outburst, ampl>4.1m for 6 days 

MASTER-OAFA auto-detection system ( <A HREF="http://www.hindawi.com/journals/aa/2010/349171/">Lipunov
et al., "MASTER Global Robotic Net", Advances in Astronomy, 2010, 30L</A>
)

discovered OT source at (RA, Dec) = 11h 32m 18.1s -30d 18m 32.6s at 2018-07-08
01:46:27.095UT. 

The OT unfiltered magnitude is 14.7m (mlim=18.6). 

There is the following automatic photometry 

Date,UT  Unfiltered_m_OT 

2018-04-15 05:40:55.567  16.8  

2018-07-01 01:34:59.457  18.8  

2018-07-06 01:24:38.526  15.8  

2018-07-08 01:39:14.461  14.7  

2018-07-08 01:46:27.095  14.7  

3mag amplitude for 5 days (from 01 July to 06 Jul) excludes red star nature
(see <a href="http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=&-out.add=_r&-out.add=_RAJ%2C_DEJ&-sort=_r&-to=&-out.max=20&-meta.ucd=2&-meta.foot=1&-c=173.0755+-30.30905&-c.rs=5">J-K~2.6
in VIZIER</a>), so we suggest just the AGN outburst ("AGN candidates from
the WISE, 2MASS" Edelson+, 2012) 

Spectral observations are required. 

The discovery and referencei mages are 

http://master.sai.msu.ru/static/OT/MASTEROTJ113218.1-301832.6.jpg 

<center><a href="http://observ.pereplet.ru/MASTER_OT.html">List of Optical
Transients discovered by MASTER</a></center>