Regular Article - Theoretical Physics
Energy exchange between relativistic fluids: the polytropic case
Research Centre for Theoretical Physics and Astrophysics, Institute of Physics, Silesian University in Opava, 746 01, Opava, Czech Republic
2 Departamento de Física, Colegio de Ciencias e Ingeniería, Universidad San Francisco de Quito, Quito, Ecuador
3 Departamento de Física, Facultad de Ciencias Básicas, Universidad de Antofagasta, Antofagasta, Chile
Accepted: 23 February 2022
Published online: 10 March 2022
We present a simple, analytic and straightforward method to elucidate the effects produced by polytropic fluids on any other gravitational source, no matter its nature, for static and spherically symmetric spacetimes. As a direct application, we study the interaction between polytropes and perfect fluids coexisting inside a self-gravitating stellar object.
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