A Far Ultraviolet Spectroscopic Analysis of BZ Ursae Majoris
Solar and Stellar Astrophysics
2015-05-28 v2
Abstract
We present an analysis of the Hubble Space Telescope/Space Telescope Imaging Spectrograph (HST/STIS) far ultraviolet snapshot spectrum of the dwarf nova BZ UMa taken during quiescence. We find that the flux continuum is consistent with that of a white dwarf atmosphere with a temperature of 15,000K, and a distance of about 156pc when assuming a white dwarf gravity of log(g)=7.5. We also show that the hydrogen quasi-molecular satellite lines opacity affects the spectrum around 1300-1400 A and has to be included to fine-tune the spectral modeling, this is self-consistent with the low stellar temperature we find.
Keywords
Cite
@article{arxiv.1107.4790,
title = {A Far Ultraviolet Spectroscopic Analysis of BZ Ursae Majoris},
author = {P. Godon and E. M. Sion and B. T. Gaensicke and D. deMartino},
journal= {arXiv preprint arXiv:1107.4790},
year = {2015}
}
Comments
withdrawn for the time being