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Paper: Calibrating the Initial-Final Mass Relationship with White Dwarf Binaries
Volume: 493, 19th European Workshop on White Dwarfs
Page: 325
Authors: Catalán, S.
Abstract: Traditionally, the initial final mass relationship has been proved using open clusters, but these relatively young populations cannot constrain the low mass end. In this work we show how wide binaries comprised by two white dwarfs can be used to constrain this problem by measuring their cooling ages from optical spectra. The best constraints come from wide binaries containing white dwarfs with very different cooling ages (i.e. very different masses). The cooling age difference between the two white dwarfs provides an upper limit for the progenitor mass of the younger object in the system. We will show our results based in our search of white dwarf binaries in Sloan Digital Sky Survey (SDSS) DR9.
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