Spectroscopic Confirmation of PNV J18033275-2816054 as an erupting Nova
ATel #8101; S. C. Williams (LJMU), M. J. Darnley (LJMU), M. F. Bode (LJMU), M. F. Bode (LJMU)
on 28 Sep 2015; 05:09 UT
Credential Certification: Matt Darnley (M.J.Darnley@ljmu.ac.uk)
Subjects: Optical, Nova, Transient
We obtained a spectrum of PNV J18033275-2816054 (see CBAT
TOCP) with the FRODOSpec spectrograph (Barnsley et al. 2012) on the Liverpool Telescope (Steele et al. 2004) on 2015 September 27.84 UT.
The spectrum shows strong Balmer emission lines, all of which (Hα, Hβ, Hγ and Hδ) show P-Cygni absorption features. The Fe II lines 4924, 5018 and 5169Å are also seen in strong emission with accompanying P-Cygni absorption profiles. Numerous other Fe II lines are also clearly detected (e.g. 4584, 4629, 5198, 5235, 5276 and 5317Å). O I features are seen at 7773 and 8446Å (both comprise emission and blueshifted absorption), with He I (6678Å) also appearing to be present. We measure the velocity of the Hα emission and absorption feature to be ~2000 km/s.
This spectrum shows that PNV J18033275-2816054 is a nova eruption and indicates that it is a member of the Fe II spectroscopic class.
