https://doi.org/10.1140/epjc/s10052-021-09818-x
Regular Article - Theoretical Physics
Analytical external spherical solutions in entangled relativity
Artemis, Université Côte d’Azur, CNRS, Observatoire Côte d’Azur, BP 4229, 06304, Nice Cedex 4, France
Received:
28
September
2021
Accepted:
6
November
2021
Published online:
24
November
2021
In this manuscript, we present analytical external spherical solutions of entangled relativity, which we compare to numerical solutions obtained in a Tolman–Oppenheimer–Volkoff framework. Analytical and numerical solutions match perfectly well outside spherical compact objects, therefore validating both types of solutions at the same time. The analytical external (hairy) solutions – which depend on two parameters only – may be used in order to easily compute observables – such as X-ray pulse profiles – without having to rely on an unknown equation of state for matter inside the compact object.
© The Author(s) 2021
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