AI 中文总结
该研究探讨超轻暗物质涡旋态对球状星团动力学摩擦的影响，发现其同向旋转可在特定距离抑制动力学摩擦，进而自然缓解天炉座计时问题。
AI 中文摘要
我们研究超轻暗物质（ULDM）的涡旋态对运动球状星团所受动力学摩擦的影响。将该力与孤子基态的动力学摩擦对比后发现，ULDM核的内部结构与旋转会强烈影响球状星团的轨道衰减。尤其在涡旋态下，同向旋转会在球状星团与ULDM速度匹配的特定距离处显著抑制动力学摩擦。将该发现应用于天炉座矮星系后发现，天炉座计时问题可自然得到缓解。
英文摘要
We investigate the impact of the vortex state of the ultralight dark matter (ULDM) on the dynamical friction acting on moving globular clusters. Comparing this force with that for the solitonic ground state, it is shown that the internal structure and rotation of the ULDM core strongly affect the orbital decay of globular clusters. In particular, co-directional rotation in a vortex state can lead to significant suppression of dynamic friction at certain distances where globular clusters and ULDM velocities match. Applying these findings to the Fornax dwarf galaxy, it is found that the Fornax timing problem is naturally alleviated.
Comments14 pages, 4 figures
Journal refUniverse 12.2, p.39 (2026)
