WD1953-011 — A White Dwarf With a Star Spot?
WD1953-011 is an isolated, cool (∼ 7900K, ) magnetic white dwarf with an unusually low field strength (∼ 70kG, ) and a higher than average mass (∼ 0.84M⊙). Spectroscopic observations taken by Maxted et al., showed variations of equivalent width in the Balmer lines, unusual in a low field white dwarf. This result led to an application for photometric time to try and detect these variations in the narrow Hβ and broad bands.
KeywordsBroad Band Light Curve White Dwarf Equivalent Width Spectroscopic Observation