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CSST 暗物质粒子性质 2025

24–27 Oct 2025
Asia/Shanghai timezone

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Contribution List

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  1. 16. 孤立的暗物质缺失矮星系
    Prof. 慧杰 胡 (安庆师范大学)
    25/10/2025, 09:00

    在标准宇宙学中，暗物质推动了星系的结构形成，并构建了形成星系的势阱。在大质量星系团中，暗晕中的重子物质比例将将达到宇宙平均值（15.7%），重子物质比例随着系统质量的降低而迅速减少。在矮星系中暗物质的质量占主导地位，即使在其光半光半径内（re≈1 kpc）仍然是暗物质主导。然而，最近有研究发现并非所有的矮星系都是由暗物质主导的，我们也发现了19个暗物质缺失的矮星系（ dark-matter-deficient dwarf galaxies ...

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  2. 17. Dwarf galaxies as dark matter probes with CSST
    Prof. 珍 袁 (南京大学)
    25/10/2025, 09:45
  3. 18. Dark matter annihilation signals from the possible faintest dwarf satellite galaxy
    Prof. 鹏飞 殷 (高能物理研究所)
    25/10/2025, 11:00
  4. 19. 一个具有异常高聚集度暗物质晕的并合矮星系遗迹
    Dr 孚嘉 李 (中国科学技术大学)
    25/10/2025, 13:15
  5. 20. The central regions of galaxies as the probe of dark matter: astrophysical uncertainties
    Prof. 辉 李 (清华大学)
    25/10/2025, 14:00
  6. 34. Detecting ultralight dark photon dark matter with precision stellar astrometry
    Prof. 强 袁 (紫金山天文台)
    25/10/2025, 14:45
  7. 22. Constraining the properties of dark matter by astronomical observations
    Prof. 效军 毕 (高能物理研究所)
    25/10/2025, 16:00
  8. 35. The Preliminary Investigation of Low- Acceleration Gravitational Anomaly in Wide Binaries
    Dr 豪然 陈 (杭州电子科技大学)
    25/10/2025, 16:45
  9. 23. Beyond Collisionless Cold Dark Matter: Observational Clues to Self-Interacting Dark Matter
    Dr 思媛 侯 (紫金山天文台)
    25/10/2025, 17:30

    Cold dark matter (CDM) has been remarkably successful in describing the large-scale universe, yet tensions persist on smaller scales — from dwarf galaxy cores to the excess of galaxy–galaxy strong lensing (GGSL) anomalies in clusters. These discrepancies point to limitations in the collisionless CDM paradigm. In this talk, I will focus on self-interacting dark matter (SIDM), and in particular...

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  10. 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...

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  11. 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...

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  12. 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