3 papers
astro-ph.HE2026
Constraints on Axion-like Dark Matter from Cosmic Birefringence with a Polarization Array of Repeating Fast Radio Bursts
Xiaohui Liu, Zi-Yan Yuwen, Yun-Long Zhang +5
Axion-like dark matter (ALDM) is a well-motivated dark matter candidate whose Chern-Simons coupling to photons can induce cosmic birefringence, producing temporal oscillations and…
astro-ph.CO2025
Constraining and Comparing the Dynamical Dark Energy and f(R) Modified Gravity Models with Cosmological Distance Measurements
Shuai Feng, Yan Gong, Xiaohui Liu +2
We constrain and compare the CDM dynamical dark energy model and three modified gravity models using the current cosmological distance measurements, including 11…
astro-ph.SR2025
Optical Flares Detected on a Contact Binary: The First Photometric and Spectroscopic Analysis of a Long-period Low Mass Ratio Contact Binary HAT 307-0007476
Ling-Zhi Li, Kai Li, Xiang Gao +10
This paper presents the photometric and spectroscopic analysis of a long-period totally eclipsing contact binary (HAT 307-0007476) for the first time. This system is a low mass rat…