CSST 暗物质粒子性质 2025

Session

Session 4（每个报告：30分钟个人报告+15分钟讨论）

26 Oct 2025, 09:00

Conveners

Session 4（每个报告：30分钟个人报告+15分钟讨论）: （每个报告：30分钟个人报告+15分钟讨论）

• 效军 毕

Description

时长说明: 30分钟报告+15分钟讨论

24. Baryon-Dominated Dwarf Galaxy Enhanced by Weakened Gravitational Binding in Galaxy Collisions

Prof. 大能 杨 (紫金山天文台)

26/10/2025, 09:00

Baryon-dominated dwarf galaxies (BDDGs) can emerge from high-velocity collisions between gas-rich ultra-diffuse galaxies. Using hydrodynamical simulations with progenitors of contrasting gravitational binding energies, we show that progenitor structure critically regulates BDDG formation. Specifically, collisions involving more weakly bound progenitors sustain star formation longer and yield...

25. The dark matter content of Milky Way dwarf spheroidal galaxies: Draco, Sextans and Ursa Minor

Dr 皓 杨 (上海交通大学)

26/10/2025, 09:45

The Milky Way Survey of the Dark Energy Spectroscopic Instrument (DESI) has so far observed three classical dwarf spheroidal galaxies (dSphs): Draco, Sextans and Ursa Minor. Based on the observed line-of-sight velocities and metallicities of their member stars, we apply the axisymmetric Jeans Anisotropic Multi-Gaussian Expansion modeling (JAM) approach to recover their inner dark matter...

26. Exploring the dark matter identity with strong strong lensing in CSST Era

Prof. 然 李 (国家天文台)

26/10/2025, 11:00