Kavli Affiliate: Lijing Shao
| First 5 Authors: Peixiang Ji, Zhuhai Li, Lirui Yang, Rui Xu, Zexin Hu
| Summary:
Recently, theoretical studies on the bumblebee gravity model, a
nonminimally-coupled vector-tensor theory that violates the Lorentz symmetry,
have flourished, with a simultaneous increase in the utilization of
observations to impose constraints. The static spherical solutions of neutron
stars (NSs) in the bumblebee theory are calculated comprehensively in this
work. These solutions with different coupling constants reveal a rich
theoretical landscape for NSs, including vectorized NSs and NSs with finite
radii but divergent masses. With these solutions, preliminary constraints on
the asymptotic vector field values are obtained through restrictions on the
stellar radius.
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