3 papers
gr-qc2026
Spin precession in the strong deflection limit
Jiafei Geng, Yunchuan Xiang, Qingquan Jiang +1
The strong deflection limit (SDL) of the deflection angle is well established for general spherically symmetric spacetimes, but a systematic SDL treatment of spin precession has be…
astro-ph.HE2026
A Novel Pipeline for the Identification of New Gamma-Ray Blazars from the 4FGL-Xiang-DR2 Catalog Based on Multi-wavelength Flux Distributions
Yunchuan Xiang, Yingzhi Ye, Peng Feng +5
The identification and classification of Fermi blazars are core topics in high-energy astrophysics. To enable precise spatial cross-identification, we constructed two high-precisio…
gr-qc2025
The precession of particle spin in spherical symmetric spacetimes
Xiankai Pang, Qingquan Jiang, Yunchuan Xiang +1
In this work, we will explore the precession of particle spins in spherical spacetimes. We first argue that the geometrical optics (WKB) approximation is insufficient, due to the a…