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gr-qc2026
Coordinate Independence of the Schwarzschild Black Hole Accretion Vlasov Gas Model
Ping Li, Jun Cheng, Jiang-he Yang
This paper presents a detailed study of the coordinate dependence of Vlasov gas accretion onto a Schwarzschild black hole. Asymptotic results at infinity and near horizon are obtai…
gr-qc2026
Revisiting critical orbits of test particles traveling in a black hole background
Ping Li, Jun Cheng, Jiang-he Yang
This paper systematically revisits the critical orbits of test particles in various black hole backgrounds, including Schwarzschild, Reissner-Nordström, Kerr, and Kerr-Newman space…