Discovery of a magnetic white dwarf with unusual short-period variability
Solar and Stellar Astrophysics
2018-02-09 v1
Abstract
We report the discovery of a magnetic white dwarf which shows periodic variability with P=110 min, color-dependent amplitudes and a transient phase shift in the blue compared to the red lightcurve - a previously unknown type of variability for this type of object. We attribute the variations either to a close ultracool (thus far undetected) companion or, more likely, to magnetic spots with unusual temperature structure.
Keywords
Cite
@article{arxiv.1802.02636,
title = {Discovery of a magnetic white dwarf with unusual short-period variability},
author = {Aleks Scholz and Joe Llama and Koraljka Muzic and Sarah Faller and Dirk Froebrich and Beate Stelzer},
journal= {arXiv preprint arXiv:1802.02636},
year = {2018}
}
Comments
2 pages, 1 figure, accepted for publication in RNAAS