Neutron stars in the bumblebee theory of gravity

Abstract

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.

15 pages, 9 figures; accepted by PRD

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Cited by in corpus (9)

• Strange Quark Stars and Condensate Dark Stars in Bumblebee Gravity
• Stars and quark stars in bumblebee gravity
• On the self-consistency of compact objects in Lorentz-violating gravity theories
• Bumblebee gravity: spherically-symmetric solutions away from the potential minimum
• Static Spherical Vacuum Solution to Bumblebee Gravity with Time-like VEVs
• Primordial gravitational waves from spontaneous Lorentz symmetry breaking
• Boson Stars in Bumblebee Gravity and Their Gravitational Waveforms from Extreme-Mass-Ratio Inspirals
• Scalarized neutron stars with a highly relativistic core in scalar-tensor gravity
• Neutron Stars in Causal Scalar-Tensor Theories