2 papers
gr-qc2026
Twisted doughnuts: Thick disk torus around equatorial asymmetric black hole
Che-Yu Chen, Eva Hackmann, Audrey Trova
The Kerr black hole spacetime is symmetric with respect to a well-defined equatorial plane. When such a symmetry is broken, for instance, by some putative effects beyond general re…
gr-qc2019
Threshold of primordial black hole formation in Eddington-inspired-Born-Infeld gravity
Che-Yu Chen
It is believed that primordial black holes (PBHs), if they exist, can serve as a powerful tool to probe the early stage of the cosmic history. Essentially, in the radiation dominat…