Hoạt động khoa học
Seminar
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Seminar Trung tâm Vật lý lý thuyết: | |
| Tên báo cáo | Probing Dark Matter with Gravitational Waves and Cosmic Magnetic Fields |
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| Người trình bày | PGS. TS. Nguyễn Quỳnh Lan |
| Cơ quan | Đại học Phenikaa |
| Ngày | Thứ Ba, 11-11-2025 |
| Giờ | 09:30 PM |
| Địa điểm | Phòng 315, 10 Đào Tấn, Giảng Võ, Hà Nội |
| Tóm tắt | Dark matter, accounting for ~27% of the universe's energy budget, defies direct detection, challenging the ΛCDM paradigm on galactic scales through issues like core–cusp discrepancies, missing satellites, and too-big-to-fail galaxies. Self-interacting dark matter (SIDM) offers a compelling resolution, incorporating non-gravitational scatterings that smooth density profiles while preserving CMB and large-scale consistency. This talk explores SIDM probes via gravitational wave (GW) astronomy and cosmic magnetic fields in extreme settings, such as binary neutron star (BNS) mergers and core-collapse supernovae. SIDM may imprint on GW signals through altered tidal deformability, viscous propagation damping, and enhanced magnetic amplification during black hole growth/mergers, manifesting in waveform distortions and multi-messenger counterparts. |
| Người chủ trì | Đỗ Thị Hương |