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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/7610
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dc.contributor.authorShaw, A W-
dc.contributor.authorHeinke, C O-
dc.contributor.authorRana, V-
dc.contributor.author+11 Co-Authors-
dc.date.accessioned2021-01-02T07:49:10Z-
dc.date.available2021-01-02T07:49:10Z-
dc.date.issued2020-11-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2020, Vol. 498; p3457–3469en_US
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 - (online)-
dc.identifier.urihttp://hdl.handle.net/2289/7610-
dc.descriptionOpen Accessen_US
dc.description.abstractThe hard X-ray spectrum of magnetic cataclysmic variables can be modelled to provide a measurement of white dwarf mass. This method is complementary to radial velocity measurements, which depend on the (typically rather uncertain) binary inclination. Here, we present results from a Legacy Survey of 19 magnetic cataclysmic variables with NuSTAR. We fit accretion column models to their 20-78 keV spectra and derive the white dwarf masses, finding a weighted average M¯WD=0.77±0.02 M☉, with a standard deviation σ = 0.10 M☉, when we include the masses derived from previous NuSTAR observations of seven additional magnetic cataclysmic variables. We find that the mass distribution of accreting magnetic white dwarfs is consistent with that of white dwarfs in non-magnetic cataclysmic variables. Both peak at a higher mass than the distributions of isolated white dwarfs and post-common-envelope binaries. We speculate as to why this might be the case, proposing that consequential angular momentum losses may play a role in accreting magnetic white dwarfs and/or that our knowledge of how the white dwarf mass changes over accretion-nova cycles may also be incomplete.en_US
dc.language.isoenen_US
dc.publisherOxford University Press on behalf of the Royal Astronomical Societyen_US
dc.relation.urihttps://ui.adsabs.harvard.edu/abs/2020MNRAS.498.3457S/abstracten_US
dc.relation.urihttps://arxiv.org/abs/2008.09684en_US
dc.relation.urihttps://doi.org/10.1093/mnras/staa2592en_US
dc.rights2020 The Author(s)en_US
dc.subjectaccretionen_US
dc.subjectaccretion discs – novaeen_US
dc.subjectcataclysmic variables –white dwarfsen_US
dc.titleMeasuring the masses of magnetic white dwarfs: a NuSTAR legacy surveyen_US
dc.typeArticleen_US
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