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Long-term eclipse timing of white dwarf binaries: an observational hint of a magnetic mechanism at work

Bours, M. C. P; Marsh, T. R; Parsons, S. G; Dhillon, V. S; Ashley, R. P; Bento, J. P; Breedt, E; Butterley, T; Caceres, C; Copperwheat, C. M; Hardy, L. K; Hermes, J. J; Irawati, P; Kerry, P; Kilkenny, D; Littlefair, S. P; McAllister, M. J; Rattanasoon, S; Sahman, D. I; Vuckovic, M; Wilson, R. W

Description

We present a long-term programme for timing the eclipses of white dwarfs in close binaries to measure apparent and/or real variations in their orbital periods. Our programme includes 67 close binaries, both detached and semi-detached and with M-dwarfs, K-dwarfs, brown dwarfs or white dwarfs secondaries. In total, we have observed more than 650 white dwarf eclipses. We use this sample to search for orbital period variations and aim to identify the underlying cause of these variations. We...[Show more]

CollectionsANU Research Publications
Date published: 2016-08-21
Type: Journal article
URI: http://hdl.handle.net/1885/107204
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw1203

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