Spectroscopic Confirmation of the 2015 Eruption of Recurrent Nova M31N 1963-09c
ATel #8242; S. C. Williams (LJMU), M. J. Darnley (LJMU), M. Henze (IEEC/CSIC), A. W. Shafter (SDSU), K. Hornoch (Astronomical Institute, Ondrejov, Czech Republic)
on 3 Nov 2015; 19:38 UT
Credential Certification: Matt Darnley (M.J.Darnley@ljmu.ac.uk)
Subjects: Optical, Nova, Transient
We obtained an optical spectrum of the 2015 eruption of recurrent nova
M31N 1963-09c (see ATel #8233, #8234, #8235, #8238 and CBAT
TOCP) using the SPRAT spectrograph on the Liverpool Telescope (Steele et al.
2004) on 2015 November 2.93 UT.
The spectrum shows extremely broad Balmer, He I, N II and N III emission
features. These emission lines are typical of novae belonging the the
He/N spectroscopic class. The Hα line shows a double-peaked
structure and we measure its FWHM to be ~ 7500 km/s. This 2015 spectrum
appears similar to that of the 2010 eruption of M31N 1963-09c (ATel
#3006), confirming that this is indeed another eruption of the recurrent