206 citations · 1.3k across the 68 of their papers we have counts for
72 papers
Quasinormal modes of Type I perturbations of dilaton-Euler-Heisenberg black holes
Yu-Xuan Wang, De-Cheng Zou, Yun Soo Myung +2
We study the type I quasinormal modes (QNMs) of magnetically charged dilaton--Euler--Heisenberg (dEH) black holes, where axial gravitational and polar electromagnetic perturbations…
Time-domain analysis of scalar perturbations of Kerr--Newman black holes with Chern--Simons and Maxwell couplings
Yan-Ming Chen, Hyat Huang, Meng-Yun Lai +3
To study the onset of scalarization, we investigate linear scalar perturbations around Kerr--Newman black holes in the Einstein-Chern-Simons-Maxwell-scalar theory with quadratic Ch…
Nonlinear scalarization and thermodynamics in Einstein-Phantom scalar-Gauss-Bonnet theory
Tian-Zhen Dai, Yun Soo Myung, De-Cheng Zou +4
We study nonlinear scalarization of Schwarzschild black-holes for a phantom scalar coupled to the Gauss--Bonnet invariant. Three polynomial couplings satisfying are intr…
Extremal Scalarization of Charged Black Holes: Miransky Scaling across Reissner-Nordström Extremality
Hong Guo, Yun Soo Myung, Lijing Shao
We study spontaneous scalarization near and at extremality in Einstein-Maxwell-scalar theory. As Reissner-Nordström (RN) extremality is approached from below, the nonextremal scala…
Scalarization of Einstein-Euler-Heisenberg black hole with multiple horizons
Hong Guo, Yun Soo Myung
Scalarizations of the Einstein-Euler-Heisenberg (EEH) black hole (EEHBH) with multiple horizons are investigated in the EEH-scalar theory by introducing a quadratic scalar coupling…
Charge-dependent scalarization of Einstein- Euler-Heisenberg black holes
Lina Zhang, Yun Soo Myung, De-Cheng Zou +2
Charge-dependent scalarization of the Einstein-Euler-Heisenberg (EEH) black hole is carried out in the EEH-scalar theory by introducing an exponential scalar coupling with coupling…
Gauss-Bonnet scalarization of charged qOS-black holes
Hong Guo, Wontae Kim, Yun Soo Myung
The Gauss-Bonnet (GB) scalarization for charged quantum Oppenheimer-Snyder (cqOS)-black holes is investigated in the Einstein-Gauss-Bonnet-scalar theory with the nonlinear electrod…
Anisotropic matter and nonlinear electromagnetics black holes
Yun Soo Myung, Wonwoo Lee
It is shown that anisotropic matter black holes with two parameters and correspond to nonlinear electrodynamics (NED) black holes with power-index and charge term $ξ(s,…
Polar perturbations of dilaton-Euler-Heisenberg black holes
Sheng-Yuan Li, Yun Soo Myung, Ming Zhang +2
We investigate the quasinormal modes of polar metric-dilaton perturbations around the dilaton-Euler-Heisenberg (dEH) black holes with dilaton hair. The dEH black holes are obtained…
Scalarizations of qOS-extremal black hole and Aretakis instability
Yun Soo Myung
We study scalarization of quantum Oppenheimer-Snyder (qOS)-extremal black hole in the Einstein-Gauss-Bonnet-scalar theory. This black hole is described by mass ($M=4\sqrtα/3\sqrt{3…
Negative potential-induced scalarization in the Einstein-Euler-Heisenberg black hole
Hong Guo, Miok Park, Yun Soo Myung
We investigate a negative potential-induced scalarization of the Einstein-Euler-Heisenberg (EEH) black hole in the EEH-scalar (EEHS) theory, characterized by mass , Euler-Heisen…
Quantum parameter-mass induced scalarization of qOS-black hole in the Einstein-Gauss-Bonnet-scalar theory
Yun Soo Myung
We obtain quantum parameter ()-mass () induced spontaneous scalarization of quantum Oppenheimer-Snyder (qOS)-black hole in the Einstein-Gauss-Bonnet-scalar theory with the un…
Shadow radius and classical scattering analysis of two secondary hair Horndeski black holes
Yun Soo Myung
We perform the shadow radius analysis of a charged Horndeski black hole (CHB) and the naked singularity (NS) with secondary scalar hair obtained from the Einstein-Horndeski-Maxwell…
Photon ring bounds of scalar hairy charged black holes
Yun Soo Myung
We study photon rings of constant scalar hairy black holes with mass , charge , and scalar hair obtained from the Einstein-Maxwell-conformally coupled scalar theory. Thes…
Scalarization of Kerr-Newman black holes in the Einstein-Chern-Simons-scalar theory
Kun-Hui Fan, Yun Soo Myung, De-Cheng Zou +1
We investigate the tachyonic instability of Kerr-Newman (KN) black hole with a rotation parameter in the Einstein-Chern-Simons-scalar theory coupled with a quadratic massive sc…
Scalarized black holes in new massive gravity dressed by a nonminimally coupled scalar
Yun Soo Myung
We investigate scalarized black holes in new massive gravity dressed by a nonminimally coupled scalar. For this purpose, we find the Gregory-Laflamme (GL) and tachyonic instability…
Two instabilities of Schwarzschild-AdS black holes in Einstein-Weyl-scalar theory
Yun Soo Myung
Stability of Schwarzschild-AdS (SAdS) black hole is investigated in Einstein-Weyl-scalar (EWS) theory with a negative cosmological constant. Here, we introduce a quadratic scalar c…
Nonlinearly scalarized rotating black holes in Einstein-scalar-Gauss-Bonnet theory
Meng-Yun Lai, De-Cheng Zou, Rui-Hong Yue +1
In this paper, we discuss a fully nonlinear mechanism for the formation of scalarized rotating black holes in Einstein-scalar-Gauss-Bonnet gravity, where Kerr black holes are linea…
Thermodynamic and tachyonic instability for asymptotically flat black holes
Yun Soo Myung, De-Cheng Zou, Meng-Yun Lai
It was confirmed that the negative modes of the Euclidean section for asymptotically flat black holes reveal the thermodynamic instability of these black holes in the grand canonic…
Superradiant instability of a massive scalar on the Kerr spacetime
Yun Soo Myung
We investigate the superradiant instability of Kerr black holes under a massive scalar perturbation. We obtain a potential when expanding the scalar potential for…
Spin-induced scalarization of Kerr-Newman black holes in Einstein-Maxwell-scalar theory
Meng-Yun Lai, Yun Soo Myung, Rui-Hong Yue +1
In this paper, we consider the tachyonic instability of Kerr-Newman (KN) black holes in the Einstein-Maxwell-scalar (EMS) theory with nonminimal negative scalar coupling to Maxwell…
Superradiant instability of dyonic Reissner-Nordstrom black holes
Yun Soo Myung
We investigate the superradiant instability of dyonic Reissner-Nordström (dRN) black holes with two charges under a charged massive scalar perturbation. Two conditions for possessi…
Superradiant instability in slowly rotating Kerr-Newman black holes
Yun Soo Myung
We study the superradiant instability of slowly rotating Kerr-Newman (sKN) black holes under a charged massive scalar perturbation. These black holes resemble closer the Reissner-N…
Revisiting superradiant stability of Kerr-Newman black holes under a charged massive scalar
Yun Soo Myung
We revisit the superradiant stability of Kerr-Newman black holes under a charged massive scalar perturbation. We obtain a newly suitable potential which is not singular at the oute…