Invariant quantities of scalar–tensor theories for stellar structure

Aleksander Kozak (Institute of Theoretical physics, University of Wroclaw, pl. Maxa Borna 9, Wrocław, 50-206, Poland) ; Aneta Wojnar (Laboratory of Theoretical Physics, Institute of Physics, University of Tartu, W. Ostwaldi 1, Tartu, 50411, Estonia)

We present the relativistic hydrostatic equilibrium equations for a wide class of gravitational theories possessing a scalar–tensor representation. It turns out that the stellar structure equations can be written with respect to the scalar–tensor invariants, allowing to interpret their physical role.

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Published on:
03 June 2021
Publisher:
Springer
Published in:
European Physical Journal C , Volume 81 (2021)
Issue 6
Pages 1-12
DOI:
https://doi.org/10.1140/epjc/s10052-021-09277-4
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: