125-Day Spectral Record of the Bright Nova Delphini 2013 (V339 Del)


Howard D. Mooers
Department of Geological Sciences, University of Minnesota Duluth, Duluth, MN 55812

William S. Wiethoff
SOLO Observatory, P. O. Box 88, Port Wing, WI 54865

Received March 7, 2014; revised March 31, 2014; accepted April 1, 2014


A 125-day spectral record of the evolution of Nova Delphini 2013 (V339 Del), which erupted on 2013 August 14 UT is presented. Spectra were acquired with a low-resolution, 100 line per millimeter grating. Records were acquired beginning one day after discovery and a total of forty-four spectra were analyzed. Despite the low resolution, major phases of evolution of this accreting-white-dwarf nova were recorded. These phases can be readily identified by the oxygen, iron, and nitrogen emission spectra within the range of most commercially available astronomical cameras (e.g. CCD and DSLR).