26 citations · 39 across the 7 of their papers we have counts for
7 papers
Dynamics and Frequency Conversion of Accreting Axion Clouds
Ximeng Li, Zhen Zhong, Yifan Chen +3
Axion fields can form exponentially growing gravitational clouds around compact objects through self-interaction-driven relaxation of ambient axion waves. As the field amplitude ap…
Black Hole Ringdown Seen in Photon Polarization Swings
Jiewei Huang, Yehui Hou, Zhen Zhong +2
Light propagating through a perturbed spacetime could imprint the underlying gravitational waveform directly onto electromagnetic observables. In this Letter, we develop a covarian…
Ultralight Boson Ionization from Comparable-Mass Binaries
Yuhao Guo, Zhen Zhong, Yifan Chen +3
Detection of gravitational waves enables probes of environmental effects around compact binaries. Ultralight bosons, well motivated in particle physics and capable of forming core-…
Whispers from the Early Universe: The Ringdown of Primordial Black Holes
Chen Yuan, Zhen Zhong, Qing-Guo Huang
We investigate the stochastic gravitational wave background (SGWB) generated by the ringdown phase of primordial black holes (PBHs) formed in the early universe. As the ringdown si…
Forward Ray Tracing and Hot Spots in Kerr Spacetime
Lihang Zhou, Zhen Zhong, Yifan Chen +1
Hotspots, often characterized as pointlike emissions, frequently appear near black holes with significantly enhanced luminosity compared to the surrounding accretion flow. Notably,…
Dynamical Lensing Tomography of Black Hole Ringdown
Zhen Zhong, Vitor Cardoso, Yifan Chen
Strong gravitational lensing occurs when photons pass through the vicinity of a black hole. We investigate this phenomenon in the context of a gravitational-wave event, specificall…
Hushing black holes: tails in dynamical spacetimes
Vitor Cardoso, Gregorio Carullo, Marina De Amicis +6
Stationary, asymptotically flat, black hole solutions of the vacuum field equations of General Relativity belong to the Kerr family. But how does one approach this state, dynamical…