4 papers · 1 filter
Periodic orbits and observational accretion disk around a Schwarzschild-like black hole surrounded by dark matter halo
Javokhir Sharipov, Tursunali Xamidov, Qiang Wu +2
In this work, we investigate the dynamics of periodic orbits and the properties of accretion disks around a Schwarzschild-like black hole (BH) immersed in a King-type dark matter (…
Spherical Accretion Flow onto General Parameterized Spherically Symmetric Black Hole Spacetimes
Sen Yang, Cheng Liu, Tao Zhu +4
The transonic phenomenon of black hole accretion and the existence of the photon sphere are the characteristics of strong gravitational fields near a black hole horizon. In this wo…
Thin Accretion Disk around a four-dimensional Einstein-Gauss-Bonnet Black Hole
Cheng Liu, Tao Zhu, Qiang Wu
Recently a novel four-dimensional Einstein-Gauss-Bonnet (4EGB) theory of gravity was proposed by Glavan and Lin [D. Glavan and C. Lin, Phys. Rev. Lett. 124, 081301 (2020)] which in…
Background dynamics of pre-inflationary scenario in Brans-Dicke loop quantum cosmology
Manabendra Sharma, Tao Zhu, Anzhong Wang
Recently the background independent nonperturbative quantization technique has been extended to theories of gravity and the corresponding quantum effective cosmology has been deriv…