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astro-ph.HE2025
X-ray Polarimetry in the Low Statistics Regime using the Bayesian Approach Reveals Polarization Angle Variations
Hong Li, Qing-Chang Zhao, Hua Feng +2
X-ray polarimetry of accreting compact objects has revealed fast time variations in the polarization angle (PA), suggesting that the geometry and/or optical depth of the Comptoniza…
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…