6 papers
Extremal non-rotating black holes have no fermionic Love
Xiankai Pang, Yu Tian, Hongbao Zhang
The static tidal Love numbers (TLNs) of -dimensional black holes vanish for bosonic perturbations but are generically nonzero for fermions, with rare exceptions. In this paper,…
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…
Fermionic Love number of higher-dimensional Reissner-Nordström black holes
Xiankai Pang, Yu Tian, Hongbao Zhang +1
In this paper, we generalize our previous work on the fermionic tidal Love numbers (TLNs) to higher-dimensional Reissner-Nordström black holes. The massless Dirac equation is solve…
Fermionic Love number of Reissner-Nordström black holes
Xiankai Pang, Yu Tian, Hongbao Zhang +1
The tidal deformation of compact objects, characterised by their Love numbers, provides insights into the internal structure of neutron stars and black holes. While static bosonic…
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…
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…