Year: 2023
Type: article
Abstract: For static matter in a gravitational field, different conventions for equilibrium local temperature exist in the classic physics literature. We illustrate the difference between two popular conventions using blackbody radiation in a spherically symmetric gravitational potential. Equilibrium temperatures defined by the ``Landau frame'' or ``Eckart frame'' prescriptions most commonly used in relativistic fluid dynamics do not satisfy the statistical-mechanical relation $1/T=dS/dE$.
Author: Pavel Kovtun
Institution: University of Victoria
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4366991815