Neutron Stars in Aether Scalar-Tensor Theory
Christopher Reyes, Jeremy Sakstein
TL;DR
This paper explores neutron stars within Aether Scalar-Tensor theory, deriving key equations and predicting mass-radius relations that align with observations, offering an alternative to dark matter explanations.
Contribution
It derives the Tolman-Oppenheimer-Volkoff equation in Aether Scalar-Tensor theory and applies it to realistic nuclear equations of state.
Findings
Solutions compatible with current neutron star observations
Mass-radius relations consistent with empirical data
Supports Aether Scalar-Tensor as a viable alternative gravity model
Abstract
Aether Scalar-Tensor theory is a modification of general relativity proposed to explain galactic and cosmological mass discrepancies conventionally attributed to dark matter.~The theory is able to fit the cosmic microwave background and the linear matter power spectrum.~In this work, we derive the Tolman-Oppenheimer-Volkoff equation in this theory and solve it for realistic nuclear equations of state to predict the mass-radius relation of neutron stars.~We find solutions that are compatible with all current observations of neutron stars.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Geophysics and Gravity Measurements · Astrophysical Phenomena and Observations