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White dwarf constraints on a varying G
(Istituto Nazionale di Astrofisica, 2014-01)
A secular variation of G modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code, an up-to-date pulsational code, and a detailed population synthesis code ...
New phase diagrams for dense carbon-oxygen mixtures and white dwarf evolution
(EDP Sciences, 2012-01)
Context. Cool white dwarfs are reliable and independent stellar chronometers. The most common white dwarfs have carbon-oxygen dense cores. Consequently, the cooling ages of very cool white dwarfs sensitively depend on the ...