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astro-ph.HE2026
Constraints on Buchdahl-Inspired Gravity from Future Pulsar Timing near Sgr A*
Jian-Ming Yan, Tao Zhu, Zong-Kuan Guo +1
Future pulsar timing observations near Sgr~A* offer a unique probe of gravitational physics in the vicinity of a supermassive black hole. We forecast the ability of such measuremen…
gr-qc2026
Gravitational Lensing of Gravitational Waves: Towards a Higher-order Geometric-optics Approach
Zhao Li, Shaoqi Hou, Wen Zhao
In this work, we study the gravitational lensing of gravitational waves (GWs) by extending the geometric-optics approximation to higher order. With the help of the Newman-Penrose f…