Dark Matter-induced Black Hole and Helium Ignition in Red-Giants

by Prof. Seokhoon Yun (Department of Physics, Kyungpook National University (KNU))

Wednesday 4 Nov 2026, 15:30 → 16:30 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N600 - Lecture Room (Tsung-Dao Lee Institute)

Abstract:
Dark matters can be captured and keep losing energy, leading to ingress into a stellar medium. Such captured dark matters can form a black hole if the thermalized dark matter density exceeds the stellar core density. The fate of such a tiny mass black hole relies on its initial mass. During evolution, the mini black hole generates an energy injection into the surrounding medium. I will discuss possible effect of this heat-up effect on red-giant medium, which can induce a premature helium flash, leading to a stringent constraint.
Bio:
Prof. Seokhoon Yun is an Assistant Professor in the Department of Physics at Kyungpook National University, Republic of Korea. He received his Ph.D. from KAIST in 2018 and, before joining KNU in 2026, held research positions at KIAS, the University of Padova, and the IBS Center for Theoretical Physics of the Universe. He is a particle phenomenologist whose research focuses on physics beyond the Standard Model, with an emphasis on particle cosmology and astroparticle physics.

Alternative online link: https://meeting.tencent.com/dm/MqRBOUjLJWsj
ID: 575417995