3 papers
gr-qc2025
Scalarized neutron stars with a highly relativistic core in scalar-tensor gravity
Peixiang Ji, Lijing Shao
Compact stars in scalar-tensor (ST) gravity have been extensively investigated, but relatively few studies have focused on highly relativistic neutron stars (NSs) with an extremely…
gr-qc2025
Bumblebee cosmology: The FLRW solution and the CMB temperature anisotropy
Rui Xu, Dandan Xu, Lars Andersson +2
We put into test the idea of replacing dark energy by a vector field against the cosmic microwave background (CMB) observation using the simplest vector-tensor theory, where a mass…
gr-qc2024
Neutron stars in the bumblebee theory of gravity
Peixiang Ji, Zhuhai Li, Lirui Yang +3
Recently, theoretical studies on the bumblebee gravity model, a nonminimally-coupled vector-tensor theory that violates the Lorentz symmetry, have flourished, with a simultaneous i…