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Full evolution of low-mass white dwarfs with helium and oxygen cores
(Wiley Blackwell Publishing, Inc, 2007-12)
We study the full evolution of low-mass white dwarfs with helium and oxygen cores. We revisit the age dichotomy observed in many white dwarf companions to millisecond pulsar on the basis of white dwarf configurations derived ...
An independent constraint on the secular rate of variation of the gravitational constant from pulsating white dwarfs
(Iop Publishing, 2013-06)
A secular variation of the gravitational constant modifies the structure and evolutionary time scales of white dwarfs. Using an state-of-the-art stellar evolutionary code and an up-to-date pulsational code we compute the ...
The pulsational properties of ultra-massive DB white dwarfs with carbon-oxygen cores coming from single-star evolution
(EDP Sciences, 2021-02)
Context. Ultra-massive white dwarfs are relevant for many reasons: Their role as type Ia supernova progenitors, the occurrence of physical processes in the asymptotic giant branch phase, the existence of high-field magnetic ...
A Young White Dwarf with an Infrared Excess
(IOP Publishing, 2015)
Using observations of Spitzer/IRAC, we report the serendipitous discovery of excess infrared emission from a single white dwarf PG 0010+280. At a temperature of 27,220 K and a cooling age of 16 Myr, it is the hottest and ...