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astro-ph.CO2025
Sensitivity of the Hongmeng 21cm experiment to scattering dark matter
Junsong Cang, Yu Gao, Yin-Zhe Ma
Scattering between dark matter and baryons can cool the intergalactic medium temperature and deepen the 21cm signal. Such interactions have been proposed to explain the unusually d…
astro-ph.CO2025★ 1 cited
Investigating Primordial Black Hole Accretion through Cosmic Optical Depth
Zi-Xuan Zhang, Junsong Cang, Yu Gao +1
Primordial black holes (PBH) accretion in the late Universe can lead to significant mass growth. A larger mass further accelerates the accretion radiation output for PBHs with init…