10 papers
Purely Electric, Magnetic, and Dyonic Black Holes in Einstein-Euler-Heisenberg Theory
Haoyuan Luo, Nan Cao, Xiao Yan Chew +3
We investigate static, spherically symmetric charged black holes in Einstein gravity coupled to Euler--Heisenberg (EH) nonlinear electrodynamics, including purely electric, purely…
Scalarized extremal black holes in the Einstein-Maxwell-scalar theory with two U(1) fields
Xiao Yan Chew, Yun Soo Myung
We study scalarized extremal black holes in the Einstein-Maxwell-scalar theory with two different scalar couplings to two U(1) fields. This theory is inspired by the bosonic sector…
Dyonic Einstein-Maxwell-scalar black holes: the cold, the hot and the plunge
Shun Chen, Xiao Yan Chew, Jutta Kunz
We investigate dyonic nonlinearly scalarized black holes in Einstein-Maxwell-scalar theory. The domain of existence of scalarized dyonic black holes consists of three branches. The…
The Interior of the Scalar Hairy Black Hole with Inverted Higgs Potential
Xiao Yan Chew, Kok-Geng Lim, Dong-han Yeom
We investigate the interior structure of asymptotically flat hairy black holes (HBHs) arising in the Einstein-Klein-Gordon theory with nonpositive-definite scalar potentials, where…
Insights in cosmology: the relevance of the connection
Ismael Ayuso, Mariam Bouhmadi-López, Che-Yu Chen +3
We explore the role of the affine connection in gravity, a modified theory where gravity is governed by non-metricity within the symmetric teleparallel framework. Although t…
Oscillations of the black hole photon ring as a probe of ultralight dilaton fields
Chunlong Li, Chao Chen, Xiao Yan Chew
Advancements of very long baseline interferometry (VLBI) have facilitated unprecedented probing of superradiant phenomena in the vicinities of supermassive black holes (SMBHs), est…