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Liverpool Telescope Discovery of a Possible Nova in M31

ATel #6675; S. C. Williams (LJMU), M. J. Darnley (LJMU), M. F. Bode (LJMU)
on 8 Nov 2014; 14:11 UT
Distributed as an Instant Email Notice Novae
Credential Certification: Matt Darnley (M.J.Darnley@ljmu.ac.uk)

Subjects: Optical, Nova

Referred to by ATel #: 6689, 6704, 6759

We report the discovery of a possible nova in M31 in Liverpool Telescope (LT; Steele et al. 2004) IO:O data taken on 2014 November 7.98 UT.

This potential nova was discovered in observations taken while following the decline of the nearby M31 nova PNV J00423972+4120117 (see ATel #6563, #6616).

We measured the position of this new transient to be RA = 0:42:52.76 Dec. = +41:17:19.7, with an accuracy of 0.2''. The possible nova had a V-band magnitude of 19.03 ± 0.04 on November 7.98 UT and an r'-band magnitude of 19.02 ± 0.03 on November 7.99 UT.

The possible nova is also visible in a second epoch of LT data taken on November 8.11 UT, when it had a magnitude of V = 19.00 ± 0.05 and r' = 18.84 ± 0.03 on November 8.12 UT. The source is not visible on frames taken 2014 October 17.04 UT down to a V-band limiting magnitude of 20.4.