Shadow of slowly rotating Kalb-Ramond black holes
W Liu, D Wu, J Wang - arXiv preprint arXiv:2407.07416, 2024 - arxiv.org
Real astronomical objects possess spin, yet deriving exact solutions for rotating black holes
within gravitational theories is a formidable challenge. To understand the shadow of rotating …
within gravitational theories is a formidable challenge. To understand the shadow of rotating …
Light rings and shadows of static black holes in effective quantum gravity
W Liu, D Wu, J Wang - arXiv preprint arXiv:2408.05569, 2024 - arxiv.org
Recently, two types of static black hole models that retain general covariance have been
proposed within the Hamiltonian constraint approach to effective quantum gravity (EQG). We …
proposed within the Hamiltonian constraint approach to effective quantum gravity (EQG). We …
Is a photon ring invariably a closed structure?
X Wang, X Wang, HQ Zhang, M Guo - arXiv preprint arXiv:2405.05011, 2024 - arxiv.org
In this study, we investigate the image of a rotating compact object (CO) illuminated by a
geometrically thin, optically thin disk on the equatorial plane. As the radius of the CO's …
geometrically thin, optically thin disk on the equatorial plane. As the radius of the CO's …
Polarization Patterns of Non-Circular Hotspots around Kerr Black Holes: A Preliminary Study
B Chen, Y Hou, Y Song, Z Zhang - arXiv preprint arXiv:2407.14897, 2024 - arxiv.org
The multi-wavelength polarized light signals from supermassive black holes have sparked a
range of studies on polarized images of accretion disks and hotspots. However, the …
range of studies on polarized images of accretion disks and hotspots. However, the …