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Paper: HST Spectra of White Dwarfs and the Mass-Radius Relation
Volume: 509, 20th European Workshop on White Dwarfs (EuroWD16)
Page: 389
Authors: Joyce, S. R. G.; Barstow, M. A.; Casewell, S. L.; Holberg, J. B.; Bond, H. E.
Abstract: We present HST spectra of the white dwarf HR1358b which is one of a number of white dwarfs we are studying in Sirius-like binaries. These binaries give us the best chance yet to test the mass-radius relation through observations of the Balmer lines of white dwarfs. These observations can be used to measure the white dwarf mass using both the spectroscopic method and the gravitational red-shift method. One of the major challenges for this type of observation is scattered light from the main sequence star contaminating the white dwarf spectrum. We will discuss methods that have been developed to correct for scattered light in the spectrum of HR1358b and the effect this correction can have on the mass-radius measurements.
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