1–5 Dec 2025
Kavli IPMU
Asia/Tokyo timezone

Seeding Supermassive Black Holes from the Dark Sector

4 Dec 2025, 14:30
30m
Lecture Hall (Kavli IPMU)

Lecture Hall

Kavli IPMU

Kavli Institute for the Physics and Mathematics of the Universe, The University of Tokyo 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8583, Japan

Speaker

Haibo Yu

Description

I will present a novel mechanism for forming supermassive black holes through dark matter dynamics. In the self-interacting dark matter framework, halos can undergo gravothermal collapse, producing black hole seeds that subsequently grow via baryonic Eddington and dark Bondi accretion. This process can naturally account for the massive black holes observed at high redshift, including the JWST Little Red Dots. I will discuss the underlying dynamics, the connection to halo evolution across cosmic time, and potential observational signatures in strong lenses, stellar streams, and dwarf satellites.

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