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The white dwarf mass-radius relation with Gaia, Hubble and FUSE

  • Simon R. G. Joyce (a1), Martin A. Barstow (a1), Sarah L. Casewell (a1), Jay B. Holberg (a2) and Howard E. Bond (a3)...

Abstract

White dwarfs are becoming useful tools for many areas of astronomy. They can be used as accurate chronometers over Gyr timescales. They are also clues to the history of star formation in our galaxy. Many of these studies require accurate estimates of the mass of the white dwarf. The theoretical mass-radius relation is often invoked to provide these mass estimates. While the theoretical mass-radius relation is well developed, observational tests of this relation show a much larger scatter in the results than expected. High precision observational tests to confirm this relation are required. Gaia is providing distance measurements which will remove one of the main source of uncertainty affecting most previous observations. We combine Gaia distances with spectra from the Hubble and FUSE satelites to make precise tests of the white dwarf mass-radius relation.

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References

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Keywords

The white dwarf mass-radius relation with Gaia, Hubble and FUSE

  • Simon R. G. Joyce (a1), Martin A. Barstow (a1), Sarah L. Casewell (a1), Jay B. Holberg (a2) and Howard E. Bond (a3)...

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