[vsnet-alert 17810] Recurrent Nova M31N 2008-12a: new outburst (ATEL)

[Taichi Kato]

ATEL #6527                                                           ATEL #6527

Title:  Recurrent Nova M31N 2008-12a: Liverpool Telescope discovery
                of 6th eruption in 7 years
Author: M. J. Darnley (LJMU), S. C. Williams (LJMU), M. F. Bode (LJMU),
                A. W. Shafter (SDSU), M. Henze (ESAC), J.-U. Ness (ESAC), R. A. Hounsell
                (STSCI)
Queries:        M.J.Darnley at ljmu.ac.uk
Posted: 3 Oct 2014; 06:19 UT
Subjects:Optical, Nova

We report the discovery of a sixth eruption of the remarkable (~1 year
inter-eruption timescale) M31 recurrent nova M31N 2008-12a, see <a href="http://adsabs.harva
rd.edu/abs/2014A%26A...563L...9D">Darnley
et al. (2014)</a>, <a href="http://adsabs.harvard.edu/abs/2014A%26A...563L...8H">Henze
et al. (2014)</a> and <a href="http://adsabs.harvard.edu/abs/2014ApJ...786...61T">Tang
et al. (2014)</a>.

The <a href="http://telescope.livjm.ac.uk">Liverpool Telescope</a> (LT;
<a href="http://adsabs.harvard.edu/abs/2004SPIE.5489..679S">Steele et al.
2004</a>) has been monitoring M31N 2008-12a with a nightly cadence since
the end of July 2014.  A clear detection of a bright stellar-like source
was made in a 60 second Sloan r'-band observation taken on 2014 October
2 21:41 UT.  No source has been detected at this position in any of the
previous LT observations (since the 2013 eruption, see e.g. ATel #5607,
#5611).

The position of this eruption is RA = 0:45:28.81 Dec. = +41:54:09.9, and
it was discovered with a magnitude of r' = 15.91 &plusmn; 0.02.

We highly recommend multi-wavelength follow-up observations of this important
system.