Observations of Rapid Blue Variables--XI DQ HERCULIS
Open Access
- 1 September 1972
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 159 (3) , 321-335
- https://doi.org/10.1093/mnras/159.3.321
Abstract
A study has been made of the phase, amplitude and shape of the 71-s periodic light variations around several binary cycles of DQ Her. It is shown that, relative to the usually adopted period of 71·06550 s, there is a 360° a phase shift through eclipse. The light curve is sinusoidal within observational error. The observed phase variations are difficult to explain except in terms of a grazing eclipse of a white dwarf pulsating in a non-radial quadrupole mode.Keywords
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