3 papers
astro-ph.GA2026
Constraining Dark Matter Density Profiles in UFDs with Wide Binaries: Forecast for the Chinese Space Station Survey Telescope
Yixi Tao, Haijun Tian, Bin Yue +1
The internal structure of dark matter halos on sub-galactic scales remains a key open question, particularly in the context of the core-cusp problem. Ultra-faint dwarf galaxies (UF…
astro-ph.SR2026
Emergence of a lithium dip in ~35 Myr "Snake" Open Clusters
Yun-Yi Zhang, Hai-Jun Tian, Jian-Rong Shi +2
We report the discovery of a lithium dip (Li-dip) in the stellar "Snake" (age = Myr), challenging the classical view that Li-dips emerge only at ages Myr.…
hep-ph2025
Wide Binary Evaporation by Dark Solitons: Implications from the GAIA Catalog
Qiming Qiu, Yu Gao, Haijun Tian +3
An analytic calculation is given for binary star evaporation under the tidal perturbation from randomly distributed, spatially extended dark objects. In particular, the Milky Way's…