2 papers
gr-qc2026
Action-level characterization of gravitational-wave propagation in dynamical Barbero--Immirzi gravity
Zhi-Fu Gao, Hui Wang, Luiz Carlos Garcia de Andrade +3
We investigate which operators in first-order dynamical Barbero--Immirzi (BI) gravity control cosmological tensor propagation at the action level. Within a bosonic, two-derivative,…
astro-ph.HE2026
Bayesian Geometrical Modeling of IXPE Polarization Angle Curves of the Magnetars 1E 2259+586 and 1E 1547.0-5408
Biao-Peng Li, Zhi-Fu Gao, Wen-Qi Ma +2
X-ray polarimetry directly probes the radiation geometry and large-scale magnetic configuration of magnetars. We present a uniform Bayesian comparison between a dipole-dominated cl…