4 papers
Ellis--Bronnikov wormhole in Quasi-topological Gravity
Gen Li, Yong-Qiang Wang
We construct higher-dimensional traversable wormholes in quasi-topological gravity (QTG) supported by a phantom scalar field. Using a static, spherically symmetric ansatz, we numer…
Compact Stars Sourced by Perfect Fluid Dark Matter Halos
Yuan Yue, Yong-Qiang Wang
Recent studies have shown that dark matter halos can support regular black holes or compact stars by assuming an anisotropic energy-momentum tensor. In this paper, we extend the an…
Static stable timelike circular orbits and Aschenbach effect in horizonless solutions of Einsteinian cubic gravity
Zhen-Hua Zhao, Yong-Qiang Wang
In modified gravity theories, horizonless compact objects serve as a compelling alternative to black holes for testing strong-field gravity. Einsteinian cubic gravity (ECG) provide…
Compact Stars Sourced by Dark Matter Halos and Their Frozen States
Yuan Yue, Yong-Qiang Wang
Inspired by regular black holes (RBHs) sourced by dark matter halos, we generalize the anisotropic energy-momentum tensor by relaxing the condition between radial press…