4 papers
Dense Dump Codec: Error-Controlled, Random-Access Compression of GRMHD Time Series for Slow-Light Radiative Transfer
Zelin Zhang, Zhenyu Zhang, Bin Chen
Black-hole movies provide a unique venue to study the time evolution of accreting plasma. Modeling this evolution with slow-light radiative transfer requires closely spaced simulat…
KPolaris: GPU-accelerated Polarized Radiative Transfer in General Relativity
Zelin Zhang, Bin Chen
Polarized black-hole images carry information about both the magnetized plasma and the curved spacetime through which the radiation propagates. We present KPolaris, an open-source…
Thermodynamics of Kerr-Newman-Bertotti-Robinson black holes
Zelin Zhang, Zhenyu Zhang, Bin Chen
In this work, we extend the thermodynamic analyses of the neutral and specially charged Kerr-Bertotti-Robinson black holes to the general Kerr-Newman-Bertotti-Robinson family, in w…
Shadows and Thin-Disk Images of Kerr-Newman Black Holes in a Bertotti-Robinson Magnetic Field
Xi Wan, Haiyu Wang, Zhenyu Zhang +2
In this paper, we investigate the optical properties of Kerr-Newman-Bertotti-Robinson (KN-BR) black holes. We use the separability of null geodesics to analyze unstable spherical p…