Mukremin Kilic: A revolution in stellar astrophysics, and the remaining challenges

Thursday, 28 September 2023 2 p.m. — 3 p.m. MST

Gemini North Hilo Base Facility | 670 N A’ohoku Place Hilo, Hawaii, 96720, USA

Gemini North Talks
Mukremin Kilic (University of Oklahoma)
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Mukremin Kilic

Gaia has provided distances to around 1.5 billion stars and revolutionized stellar astrophysics. Gaia has finally revealed the population of faint white dwarf stars in the solar neighborhood. We use this dataset and follow-up data from Gemini to answer fundamental questions about the nature of white dwarfs, including their mass distribution, crystallization, ultracool, and ultramassive white dwarfs. I will present newly updated constraints on the fraction of merger products among the ultramassive white dwarfs in the solar neighborhood, and highlight the discoveries of the most massive pulsating white dwarf and an isolated white dwarf with a spin period of only 70 seconds.

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