13 citations · 40 across the 10 of their papers we have counts for
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Periodic orbits around a magnetically charged black hole in gravity coupled with Euler-Heisenberg electrodynamics
Jun-Long Huang, Chen-Kai Qiao, Jun Tao
We systematically investigate the zoom-whirl periodic orbits of a small compact object orbiting a magnetically charged black hole in gravity coupled with Euler-Heisenberg…
Investigation of Circular Photon Orbits in Naked Singularity Spacetimes from a Geometric Method
Qing-Rong Xie, Chen-Kai Qiao
Circular photon orbits play a pivotal role in both gravitational theories and astronomical observations. However, the properties of circular photon orbits in naked singularity spac…
Orbital Dynamics and Gravitational Wave Signatures of Extreme Mass Ratio Inspirals in Galactic Dark Matter Halos
Guo-He Li, Chen-Kai Qiao, Jun Tao
In astrophysics, extreme mass ratio inspiral (EMRI) systems, which consist of a central supermassive black hole and a stellar-mass compact object (SCO), are typically embedded in g…
A General Discussion on Photon Spheres in Different Categories of Spacetimes
Chen-Kai Qiao, Ping Su, Yang Huang
Photon spheres have attracted considerable interest in the studies of black holes and other astrophysical objects. For different categories of spacetimes (or gravitational sources)…
Geometric Approach to Light Rings in Axially Symmetric Spacetimes
Chenkai Qiao, Ming Li, Donghui Xie +1
Circular photon orbits have become an attractive topic in recent years. They play extremely important roles in black hole shadows, gravitational lensings, quasi-normal modes, and s…
Periodic orbits and their gravitational waves in EMRIs: supermassive black hole affected by galactic dark matter halos
Guo-He Li, Chen-Kai Qiao, Jun Tao
Periodic orbits exhibiting zoom-whirl behavior have become attractive topics for studying particle dynamics and gravitational wave emission in extreme-mass-ratio inspirals (EMRIs).…
Gravitational Lensing of Euler-Heisenberg Black Hole Surrounded by Perfect Fluid Dark Matter
Ping Su, Chen-Kai Qiao
In this work, we study the gravitational lensing of Euler-Heisenberg black hole surrounded by perfect fluid dark matter. This kind of black hole solution enables us to investigate…
The Existence and Distribution of Photon Spheres Near Spherically Symmetric Black Holes -- A Geometric Analysis
Chen-Kai Qiao
Photon sphere has attracted significant attention since the capture of black hole shadow images by Event Horizon Telescope. Recently, a number of studies have highlighted that the…
Time Delay of Light in the Gravitational lensing of Supermassive Black Holes in Dark Matter Halos
Chen-Kai Qiao, Ping Su
The dark matter halo has non-negligible effects on the gravitational lensing of supermassive black hole in the galaxy center. Our work presents a study on the time-delay of light i…
Gravitational Lensing of Spherically Symmetric Black Holes in Dark Matter Halos
Yi-Gao Liu, Chen-Kai Qiao, Jun Tao
The gravitational lensing of supermassive black holes surrounded by dark matter halo has attracted a great number of interests in recent years. However, many studies employed simpl…