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dc.contributor.editorCastanheira, B.
dc.contributor.editorVanderbosch, Z.
dc.contributor.editorMontgomery, M.
dc.creatorJoyce, S.R.G.
dc.creatorBarstow, M.A.
dc.creatorHolberg, J.B.
dc.creatorBond, H.E.
dc.creatorCasewell, S.L.
dc.creatorBurleigh, M.R.
dc.date.accessioned2018-12-19T16:40:13Z
dc.date.available2018-12-19T16:40:13Z
dc.date.issued2018-07
dc.identifierdoi:10.15781/T25718796
dc.identifier.urihttp://hdl.handle.net/2152/71594
dc.descriptionThe 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018en_US
dc.description.abstractPrevious measurements of the gravitational redshift of Sirius B have resulted in a mass estimate which is significantly larger than the mass measured from the binary orbit. We have obtained new HST observations of Sirius A and B in Cycle 25 which were used to make a differential measurement of the WD gravitational redshift. We measure a redshift of 80.65 +- 0.77 km s-1 which, when combined with the radius, gives a mass of 1.017 +- 0.025 M . The new result is in agreement with the dynamical mass and the predictions of a C/O white dwarf mass-radius relation with a precision of 2.5 per cent.en_US
dc.language.isoengen_US
dc.relation.ispartof21st European White Dwarf Workshopen_US
dc.subjectwhite dwarfsen_US
dc.subjectSirius Ben_US
dc.subjectgravitational redshiften_US
dc.titleThe gravitational redshift of Sirius Ben_US
dc.typeConference paperen_US
dc.description.departmentAstronomyen_US
dc.rights.restrictionOpenen_US


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