3,107 research outputs found
Thermodynamics of Taub-NUT-AdS Spactimes
We apply the generalised Komar method proposed in [arxiv:2208.05494] to
Taub-NUT-AdS spacetime in the theory of Einstein gravity plus a cosmological
constant. Based on a generalised closed 2-form, we derive the total mass and
NUT charge of the Taub-NUT-AdS spacetime. Together with other thermodynamic
quantities calculated through standard method, we conform the first law and
Smarr relation. Then, we consider charged AdS NUTy spacetimes in
Einstein-Maxwell theory with a cosmological constant, and show that the
generalised Komar method works, too. We obtain all the thermodynamic
quantities, and the first law and Smarr relation are checked to be satisfied
automatically.Comment: 14 pages, no figur
Smarr Integral Formula of D-dimensional Stationary Spacetimes in Einstein-\AE ther-Maxwell Theroy
Using the Wald formalism, we investigate the thermodynamics of charged black
holes in D-dimensional stationary spacetimes with or without rotations in
Einstein-\ae ther-Maxwell theory. In particular, assuming the existence of a
scaling symmetry of the action, we obtain the Smarr integral formula, which can
be applied to both Killing and universal horizons. When restricted to
4-dimensional spherically symmetric spacetimes, previous results obtained by a
different method are re-derived.Comment: No figures and tables. Phys. Let. B782 (2018) 723-72
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