5 papers
Geodesics and shadows of the spindle-deformed Kerr black hole
Hong-Da Lyu, Mingzhi Wang, Shoulong Li
Recently, a new exact Ricci-flat rotating black-hole solution was constructed in four-dimensional general relativity, in which an additional parameter characterizes a spindle d…
Solar-System Bounds on Ricci-flat Spindle Deformations of Schwarzschild
Zhong-Xi Yu, Hong-Da Lyu, Shoulong Li
Recently, a new class of deformed black-hole exact solutions was constructed in four-dimensional general relativity. The deformation is controlled by a parameter , which survive…
Revisiting black holes and their thermodynamics in Einstein-Kalb-Ramond gravity
Zhong-Xi Yu, Hong-Da Lyu, Mandula Huhe +1
Einstein-Kalb-Ramond (EKR) gravity is an alternative theory in which a rank-two antisymmetric tensor field, the Kalb-Ramond field, is nonminimally coupled to gravity, potentially g…
Black holes and neutron stars in massive Hellings-Nordtvedt theory
Zhe Luo, Liang Liang, Zhong-Xi Yu +3
Hellings-Nordtvedt theory is a vector-tensor theory in which a vector field is nonminimally coupled to curvature through two independent interactions and $A^μ…
Dyonic RN-like and Taub-NUT-like black holes in Einstein-bumblebee gravity
Shoulong Li, Liang Liang, Liang Ma
Einstein-bumblebee gravity is one of the simplest vector-tensor theories that realizes spontaneous Lorentz symmetry breaking. In this work, we first construct an exact dyonic Reiss…