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20142023
most citedShadow of a Spinning Black Hole in an Expanding Universe

167 citations · 1.1k across the 26 of their papers we have counts for

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13 papers · 1 filter

gr-qc2023

Probing the Tidal Deformability of the Central Object in an Extreme Mass Ratio Inspiral with Analytic Kludge Waveforms

Tieguang Zi, Peng-Cheng Li

We develop approximate ``analytic-kludge" waveforms to describe the inspiral of a stellar-mass compact object into a supermassive compact object in an extreme mass ratio inspiral (…

gr-qc2022★ 37 cited

Analytic Kludge Waveforms for Extreme Mass Ratio Inspirals of Charged Object around Kerr-Newman Black Hole

Tieguang Zi, Ziqi Zhou, Hai-Tian Wang +3

We derive the approximate, ``analytic-kludge'' (AK) waveforms for the inspiral of a charged stellar-mass compact object (CO) into a charged massive Kerr-Newman (KN) black hole (BH)…

gr-qc2021★ 1 cited

Probing chromatic onsets of gravitational wave overtones

Hai-Tian Wang, Yi-Ming Hu, Peng-Cheng Li +1

The ringdown data of both GW150914 and GW190521\_074359 (GW190521r) show evidence supporting the presence of overtone. Previous studies all adopt a fundamental assumption, which we…

gr-qc2021★ 45 cited

Correspondence of eikonal quasinormal modes and unstable fundamental photon orbits for Kerr-Newman black hole

Peng-Cheng Li, Tsai-Chen Lee, Minyong Guo +1

In this work, we study the relation of the eikonal quasinormal modes (EQNMs) and the unstable fundamental photon orbits (UFPOs) in the Kerr-Newman spacetime. We find that in the ei…

gr-qc2021★ 10 cited

Quasinormal-modes of the Kerr-Newman black hole: GW150914 and fundamental physics implications

Hai-Tian Wang, Shao-Peng Tang, Peng-Cheng Li +1

We develop an analytical ringdown waveform model, including both the fundamental and the overtone quasinormal modes, for charged black holes and show that it is precise enough to a…

gr-qc2021★ 45 cited

Tight constraints on Einstein-dilation-Gauss-Bonnet gravity from GW190412 and GW190814

Hai-Tian Wang, Shao-Peng Tang, Peng-Cheng Li +2

Gravitational-wave (GW) data can be used to test general relativity in the highly nonlinear and strong field regime. Modified gravity theories such as Einstein-dilation-Gauss-Bonne…

gr-qc2020★ 135 cited

QED Effect on Black Hole Shadow

Zezhou Hu, Zhen Zhong, Peng-Cheng Li +2

In this work, taking the QED effect into account, we investigate the shadows of the static black hole with magnetic monopoles and neutral black holes in magnetic fields through the…

gr-qc2020★ 77 cited

Novel shadows from the asymmetric thin-shell wormhole

Xiaobao Wang, Peng-Cheng Li, Cheng-Yong Zhang +1

For dark compact objects such as black holes or wormholes, the shadow size has long been thought to be determined by the unstable photon sphere (region). However, by considering th…

gr-qc2020★ 8 cited

High spin expansion for null geodesics

Peng-Cheng Li, Minyong Guo, Bin Chen

We consider the high spin expansion for the null geodesics in the Kerr spacetime. We expand the null geodesic equation successively to higher orders in deviation from extremity. Vi…

gr-qc2020★ 29 cited

Superradiance and stability of the novel 4D charged Einstein-Gauss-Bonnet black hole

Cheng-Yong Zhang, Shao-Jun Zhang, Peng-Cheng Li +1

We investigated the superradiance and stability of the novel 4D charged Einstein-Gauss-Bonnet black hole which is recently inspired by Glavan and Lin [Phys. Rev. Lett. 124, 081301…

gr-qc2020★ 18 cited

Constrains on the electric charges of the binary black holes with GWTC-1 events

Hai-Tian Wang, Peng-Cheng Li, Jin-Liang Jiang +3

Testing black hole's charged property is a fascinating topic in modified gravity and black hole astrophysics. In the first Gravitational-Wave Transient Catalog (GWTC-1), ten binary…

gr-qc2020★ 167 cited

Shadow of a Spinning Black Hole in an Expanding Universe

Peng-Cheng Li, Minyong Guo, Bin Chen

We study the influence of the cosmic expansion on the size of the shadow of a spinning black hole observed by a comoving observer. We first consider that the expansion is driven by…

gr-qc2019★ 14 cited

Photon Emission Near Myers-Perry Black Holes in the Large Dimension Limit

Minyong Guo, Peng-Cheng Li, Bin Chen

We study the null geodesics extending from the near-horizon region out to the far region in the background of the Schwarzschild and the singly-spinning Myers-Perry black holes in t…