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TAPIR Seminar

Friday, May 12, 2023
2:00pm to 3:00pm
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Online and In-Person Event
New populations of white dwarfs revealed by Gaia
Sihao Cheng, Postdoctoral Fellow, IAS, Princeton and Perimeter Institute,

In person: 370 Cahill -- Attendees joining in person must have a valid Caltech UID.

To Join via Zoom: 864 8902 5566

ABSTRACT: Data from the Gaia satellite are revolutionizing many fields of astronomy. I will present two discoveries about white dwarfs: one is an extreme cooling anomaly that poses a challenge for our understanding of white dwarf physics, and the other is the existence of merger products among single white dwarfs. I will show interesting solutions to the challenge and their implications for type-Ia supernovae and binary evolution.

For more information, please contact JoAnn Boyd by phone at 626-395-4280 or by email at [email protected].