288 citations · 1k across the 38 of their papers we have counts for
38 papers
Photon rings and shadows of black holes with non-minimal couplings between curvature and electromagnetic field
Zhixiang Yin, Changjun Gao, Yun-Long Zhang
We investigate black holes with non-minimal couplings between the electromagnetic field and spacetime curvature, focusing on their event horizons, shadows, and photon rings. Such c…
Resonant Electric Probe to Axionic Dark Matter
Junxi Duan, Yu Gao, Chang-Yin Ji +3
The oscillating light axion field is known as wave dark matter. We propose an LC-resonance enhanced detection of the narrow band electric signals induced by the axion dark matter u…
Pulsar Timing Residual induced by Wideband Ultralight Dark Matter with Spin 0, 1, 2
Sichun Sun, Xing-Yu Yang, Yun-Long Zhang
The coherent oscillation of ultralight dark matter in the mass regime around eV induces changes in gravitational potential with the frequency in the nanohertz range. Thi…
Observational Constraints on the Cosmology with Holographic Dark Fluid
Da Huang, Bum-Hoon Lee, Gansukh Tumurtushaa +2
We consider the holographic Friedman-Robertson-Walker (hFRW) universe on the 4-dimensional membrane embedded in the 5-dimensional bulk spacetime and fit the parameters with the obs…
Dark Fluxes from Accreting Black Holes and Direct Detections
Rong-Gen Cai, Sichun Sun, Bing Zhang +1
We discuss the possibility that accreting black hole systems can be sources for dark matter flux through several different mechanisms. We firstly discuss two types of systems: coro…
Gravitational Waves and Possible Fast Radio Bursts from Axion Clumps
Sichun Sun, Yun-Long Zhang
The axion objects such as axion mini-clusters and axion clouds around spinning black holes induce parametric resonances of electromagnetic waves through the axion-photon interactio…