136 citations · 310 across the 24 of their papers we have counts for
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Distinct Near-Horizon Trend of Synchrotron Polarization in Kerr Spacetime
Yehui Hou, Jiewei Huang, Bin Chen
We show that the near-horizon expansion of the linear polarization vector for synchrotron emission in a Kerr background admits a distinct analytic form. For emission from a station…
Distorting Kerr Images with Parity-Odd Scalar Hair
Qian Wan, Yehui Hou, Yang Huang +3
We investigate thin-disk imaging of Kerr black holes with synchronized scalar hair, focusing on backreacted parity-odd excited states of a complex scalar field minimally coupled to…
Critical Behavior of Photon Rings in Kerr-Bertotti-Robinson Spacetime
Xi Wan, Zhenyu Zhang, Fang-Stars Wei +2
In this work, we investigate the critical behavior of photon rings in the Kerr-Bertotti-Robinson spacetime, describing a rotating black hole immersed in a background magnetic field…
Probing the Scalar Hair of Rotating Horndeski Black Holes through Thick Disk Images
Qian Wan, Yehui Hou, Minyong Guo
Horizon-scale images of black holes provide a potential probe of fundamental physics, including tests of gravity and black hole hair. To assess the impact of scalar hair on accreti…
Geodesics and Shadows in the Kerr-Bertotti-Robinson Black Hole Spacetime
Xinyu Wang, Yehui Hou, Xi Wan +2
In this work, we investigate geodesics and black hole shadows in the Kerr-Bertotti-Robinson spacetime. We show that the equations of motion for null geodesics are separable and adm…
Near-Horizon Polarization as a Diagnostic of Black Hole Spacetime
Yehui Hou, Jiewei Huang, Minyong Guo +2
A key challenge in imaging supermassive black holes is disentangling gravitational effects from plasma physics in order to accurately determine spacetime properties, particularly b…
Energy Extraction from a Kerr Black Hole via Magnetic Reconnection within the Plunging Region
Bin Chen, Yehui Hou, Junyi Li +1
Magnetic reconnection within a highly magnetized plasma has been seen as a viable mechanism to extract the energy from a rotating black hole, as it can generate negative energy pla…
A new analytical model of magnetofluids surrounding rotating black holes
Yehui Hou, Zhenyu Zhang, Minyong Guo +1
In this study, we develop a simplified magnetofluid model in the framework of GRMHD. We consider an ideal, adiabatic fluid composed of two components, ions and electrons, having a…
Observational signatures of rotating black holes in the semiclassical gravity with trace anomaly
Zhenyu Zhang, Yehui Hou, Minyong Guo
In a recent work by Fernandes [arXiv:2305.10382], an exact stationary and axisymmetric solution was discovered in semiclassical gravity with type-A trace anomaly, identified as a q…
Polarized images of charged particles in vortical motions around a magnetized Kerr black hole
Zhenyu Zhang, Yehui Hou, Zezhou Hu +2
In this work, we study the images of a Kerr black hole (BH) immersed in uniform magnetic fields, illuminated by the synchrotron radiation of charged particles in the jet. We partic…
Electromagnetic effects on charged particles in NHEK
Yehui Hou, Zhenyu Zhang, Minyong Guo +1
We investigate the motions of charged particles in the near horizon region of an extreme Kerr black hole with weak electromagnetic fields. There is an enhanced symmetry in the NHEK…
How different are shadows of compact objects with and without horizons?
Xiangyu Wang, Yehui Hou, Minyong Guo
In this work, we theoretically assume that a compact object (CO) can have a dark surface so that the CO is simplified to have no emissions and reflections. Considering that the rad…
Image of Kerr-Melvin black hole with thin accretion disk
Yehui Hou, Zhenyu Zhang, Haopeng Yan +2
In this present work, we study the observational appearance of Kerr-Melvin black hole (KMBH) illuminated by an accretion disk. The accretion disk is assumed to be located on the eq…
Polarized Images of Synchrotron Radiations in Curved Spacetime
Zezhou Hu, Yehui Hou, Haopeng Yan +2
In this work, we derive two formulas encoding the polarization direction and luminosity of synchrotron radiations from the moving electrons in curved spacetime under the geometric…
Multi-level images around Kerr-Newman black holes
Yehui Hou, Peng Liu, Minyong Guo +2
We study the lensing effects of Kerr-Newman (KN) black holes and the multi-level images of luminous sources around the black holes. We obtain the analytic forms of the lens equatio…
Revisiting the shadow of braneworld black holes
Yehui Hou, Minyong Guo, Bin Chen
We revisit the shadows of rotating braneworld black holes in the Randall-Sundrum type II model, by considering not only the metric in the near region of the black hole but also the…