336 citations · 4.4k across the 94 of their papers we have counts for
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On the Anisotropy of Nuclei Mid-Infrared Radiation in Nearby Active Galactic Nuclei
Huan Yang, JunXian Wang, Teng Liu
In the center of active galactic nuclei (AGN), the dusty torus absorb the radiation from the central engine and re-emit in mid-infrared (MIR). Observations have detected moderate a…
The Quasinormal Modes of Weakly Charged Kerr-Newman Spacetimes
Zachary Mark, Huan Yang, Aaron Zimmerman +1
The resonant mode spectrum of the Kerr-Newman spacetime is presently unknown. These modes, called the quasinormal modes, play a central role in determining the stability of Kerr-Ne…
Towards an understanding of the force-free magnetosphere of rapidly spinning black holes
Fan Zhang, Huan Yang, Luis Lehner
The ability of a plasma surrounding spinning black holes to extract rotational energy and power energetic emissions has been recognized as a key astrophysical phenomenon. Important…
Quasinormal Modes Beyond Kerr
Aaron Zimmerman, Huan Yang, Zachary Mark +2
The quasinormal modes (QNMs) of a black hole spacetime are the free, decaying oscillations of the spacetime, and are well understood in the case of Kerr black holes. We discuss a m…
Stability of Force-Free Magnetospheres
Huan Yang, Fan Zhang
We analyze the dynamical evolution of a perturbed force-free magnetosphere of a rotating black hole, which is described by the Blandford-Znajek solution in the stationary limit. We…
Wavefront twisting by rotating black holes: orbital angular momentum generation and phase coherent detection
Huan Yang, Marc Casals
In this paper we study wave propagation and scattering near a rotating black hole. In particular, we assume a coherent emission source near the black hole and investigate the wavef…