3 papers
gr-qc2026
Gravitational emissions and light curves of quasi-periodic orbits in Schwarzschild spacetime embedded in a Dehnen-type dark matter halo
Shijie Tan, Chunhua Jiang, Dan Li +3
Timelike orbits in curved spacetimes encode intrinsic information about the background geometry and serve as critical probes for investigating gravitational theories and source dis…
gr-qc2026
Rational Orbits and Gravitational Waves in Static Spherical Spacetimes: An Open-Source Numerical Framework
Dan Li, Shiyang Hu, Chen Deng +2
Timelike orbits constitute a crucial probe for exploring the intrinsic properties of curved spacetimes, and the carried gravitational radiation signals provide a direct window into…
gr-qc2025
OCTOPUS: A Versatile, User-Friendly, and Extensible Public Code for General-Relativistic Ray-Tracing in Spherically Symmetric and Static Spacetimes
Shiyang Hu, Shijie Tan, Dan Li +3
This paper presents OCTOPUS, a relativistic ray-tracing algorithm developed within a Fortran-based, OpenMP-accelerated framework, designed for asymptotically flat, spherically symm…