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A fast spinning magnetic white dwarf in the double degenerate, super-Chandrasekhar system NLTT 12758

Kawka, Adela; Briggs, Gordon; Vennes, Stephane; Ferrario, Lilia; Paunzen, Ernst; Wickramasinghe, Dayal


We present an analysis of the close double degenerate NLTT 12758, which is comprised of a magnetic white dwarf with a field of about 3.1 MG and an apparently non-magnetic white dwarf. We measured an orbital period of 1.154 d and found that the magnetic white dwarf is spinning around its axis with a period of 23 min. An analysis of the atmospheric parameters has revealed that the cooling ages of the two white dwarfs are comparable, suggesting that they formed within a short period of time from...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw3149
Access Rights: Open Access


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