Nov 16 – 21, 2025
Tsung-Dao Lee Institute
Asia/Shanghai timezone

The tidal track of satellites in COLIBRE

Nov 21, 2025, 11:45 AM
15m
Tsung-Dao Lee Institute

Tsung-Dao Lee Institute

1 Lisuo Road, Pudong New Area, Shanghai, 201210
Talk Galaxy Formation and Evolution Structure 3

Speaker

Feihong He (Kavil Institute for Astronomy and Astrophysics, Peking University)

Description

The tidal field of the host halo strips not only the dark matter of the subhalo but also its embedded satellite galaxies. This process alters the stellar-mass–halo-mass relation for satellites compared to isolated galaxies. The co-evolution of stellar and dark matter components determines the fate of the faintest galaxies: will they be disrupted along with their host subhalo, or survive as dark-matter-deficient galaxies? In this talk, I will address these questions by examining satellite tidal evolution in the latest hydrodynamical simulation, COLIBRE.

Primary author

Feihong He (Kavil Institute for Astronomy and Astrophysics, Peking University)

Co-author

Jiaxin Han (Shanghai Jiao Tong University)

Presentation materials

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