Tag: general relativity

A new theoretical study shows that in unimodular gravity with a spacetime-dependent cosmological term, regular black holes can be supported ...

Theoretical physicists have constructed a consistent effective spacetime metric for bound binary systems at third post-Minkowskian order, improving the analytical ...

Researchers at North Carolina State University have extended a force-based, relativistic reformulation of gravity to many-body systems, showing that frame ...

Theoretical physicists have constructed a new exact solution of Einstein's equations describing a spinning black hole carrying both electric and ...

A new theoretical study shows that a phantom scalar charge smoothly controls the optical geometry, photon-sphere radius, shadow and orbital ...

A comprehensive review reveals how three competing numerical schemes for modeling neutrinos in neutron star merger simulations each carry distinct ...

A new study shows how extending spacetime with pseudo-complex coordinates removes black hole singularities and generates a geometric form of ...

A new theoretical study shows that nonsingular spacetimes with a warped extra dimension remain dynamically stable under massive scalar field ...

A new perturbative solution in scalar-tensor gravity shows that a black hole's horizon can persist through a nonsingular cosmological bounce.

A new analysis shows that demanding physically sensible black holes forces new general relativity's free parameters into pathological regions of ...