4–8 Aug 2025
The University of Hong Kong
Asia/Hong_Kong timezone

Little Red Dots: Laboratory for Black Hole and Galaxy Formation

4 Aug 2025, 10:30
1h 30m
The University of Hong Kong

The University of Hong Kong

Speaker

Prof. Luis Ho (Kavli Institute for Astronomy and Astrophysics, Peking University)

Description

The discovery of the "little red dots" with the James Webb Space Telescope has revealed a host of surprises about this mysterious class of high-redshift objects. Their physical nature remains hotly contested. I will argue that little red dots trace the initial phase of supermassive black holes that predates the formation of their host galaxies. As such, they offer a uniquely valuable laboratory to illuminate the physical mechanism of black hole formation and the initial conditions of the earliest moments of galaxy formation. I will outline what we know and the much else that still remains uncertain.

Author

Prof. Luis Ho (Kavli Institute for Astronomy and Astrophysics, Peking University)

Presentation materials