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Observational Constraints On The Degenerate Mass-Radius Relation, J. B. Holberg, Terry D. Oswalt, M. A. Barstow
Observational Constraints On The Degenerate Mass-Radius Relation, J. B. Holberg, Terry D. Oswalt, M. A. Barstow
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The white dwarf mass–radius relationship is fundamental to modern astrophysics. It is central to routine estimation of DA white dwarf masses derived from spectroscopic temperatures and gravities. It is also the basis for observational determinations of the white dwarf initial–final-mass relation. Nevertheless, definitive and detailed observational confirmations of the mass–radius relation (MRR) remain elusive owing to a lack of sufficiently accurate white dwarf masses and radii. Current best estimates of masses and radii allow only broad conclusions about the expected inverse relation between masses and radii in degenerate stars. In this paper, we examine a restricted set of 12 DA …