11 citations · 18 across the 7 of their papers we have counts for
8 papers
Black holes with dark matter halos and a positive cosmological constant: Energy conditions and signatures
Long-Yue Li, Li-Ming Cao, Yungui Gong +3
We study static, spherically symmetric black holes surrounded by dark matter halos in the presence of a positive cosmological constant. Assuming vanishing radial pressure, we deriv…
Signatures of the Israel Junction II: Double Photon Rings in Slowly Rotating Kerr Spacetime with Thin Shell
Long-Yue Li, Li-Ming Cao, Yungui Gong +2
Applying the junction conditions to the slowly rotating Kerr spacetime with a thin shell, when higher order terms in the spin parameter a can be neglected, we find that while the a…
Imaging Signatures of the Israel Junction: Photon Ring Evolution in Dynamical Thin Shell Schwarzschild Spacetimes
Li-Ming Cao, Long-Yue Li, Xia-Yuan Liu
We study the images of black holes by gluing two Schwarzschild spacetimes with a thin shell where the Israel junction conditions are satisfied. By studying the refraction law for n…
Images and photon regions of continuous photon sphere spacetime
Long-Yue Li, Xia-Yuan Liu, Rong-Gen Cai +2
We study images of spacetimes containing continuous photon spheres (CPS). For a self-gravitating, isotropic, spherically symmetric spacetime with CPS, we find that a thin accretion…
Image of Quantum Improved Regular Kerr Black Hole and Parameter Constraints from EHT Observations
Li-Ming Cao, Long-Yue Li, Xia-Yuan Liu
Quantum Improved Regular Kerr (QIRK) black hole is a rotating regular black hole model constructed based on the asymptotic safety method. The model eliminates the ring singularity…
The appearance of de Sitter black holes and strong cosmic censorship
Li-Ming Cao, Long-Yue Li, Xia-Yuan Liu +1
We study the optical appearance of Schwarzschild-de Sitter and Reissner-Nordström-de Sitter black holes viewed by distant observers inside cosmological horizons. Unlike their asymp…
The appearance of the regular black hole with a stable inner horizon
Li-Ming Cao, Long-Yue Li, Xia-Yuan Liu +1
The strong cosmic censorship conjecture, which states that the evolution of generic initial data will always produce a globally hyperbolic spacetime, is hard to be tested by astron…
A Bound on the Rate of Bondi Mass Loss
Li-Ming Cao, Long-Yue Li, Liang-Bi Wu
To ensure the light (emitted far away from the source of gravity) can arrive at the null infinity of an asymptotically flat spacetime, it is shown that the rate of Bondi mass aspec…