Nova Cygni 2001/2 = V2275 Cyg
Abstract
We present an analysis of low- and medium resolution spectra of the very fast nova, Nova Cygni 2001/2 (V2275 Cyg) obtained at nine epochs in August, September and October, 2001. The expansion velocity from hydrogen Balmer lines is found to be 2100 km/s, although early H-alpha profile showed a weak feature at -3500 km/s, too. The overall appearance of the optical spectrum is dominated by broad lines of H, He and N, therefore, the star belongs to the ``He/N'' subclass of novae defined by Williams (1992). Interstellar lines and bands, as well as BV photometry taken from the literature yielded to a fairly high reddening of E(B-V)=1.0+/-0.1 mag. The visual light curve was used to deduce M_V by the maximum magnitude versus rate of decline relationship. The resulting parameters are: t_0=2452141.4(+0.1)(-0.5), t_2=2.9+/-0.5 days, t_3=7+/-1 days, M_V=-9.7+/-0.7 mag. Adopting these parameters, the star lies between 3 kpc and 8 kpc from the Sun.
Cite
@article{arxiv.astro-ph/0201211,
title = {Nova Cygni 2001/2 = V2275 Cyg},
author = {L. L. Kiss and N. Gogh and J. Vinko and G. Furesz and B. Csak and H. DeBond and J. R. Thomson and A. Derekas},
journal= {arXiv preprint arXiv:astro-ph/0201211},
year = {2009}
}
Comments
5 pages, 5 figures, accepted for publication in A&A