3 papers
astro-ph.CO2025
A dense dark matter core of the subhalo in the strong lensing system JVAS B1938+666
Lei Lei, Yi-Ying Wang, Qiao Li +7
The nature of dark matter remains unknown, motivating the study of fuzzy/wave dark matter (FDM/DM) and self-interacting dark matter (SIDM) as alternative frameworks to address…
astro-ph.GA2025
The angular momentum of stars reflects the relationship between star-forming environment and galactic evolution history
Yu-Fu Shen, Yan Xu, Yi-Bo Wang +3
This study focuses on stars with masses above the Kraft break in the \textit{Kepler} field. Their rotational angular momenta are essentially the same as those at the zero-age main…
astro-ph.CO2025
Can Dark Stars account for the star formation efficiency excess at very high redshifts?
Lei Lei, Yi-Ying Wang, Guan-Wen Yuan +3
The James Webb Space Telescope (JWST) has recently conducted observations of massive galaxies at high redshifts, revealing a notable anomaly in their star formation efficiency (SFE…