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gr-qc2024
Generalized Komar charges and Smarr formulas for black holes and boson stars
Romina Ballesteros, Tomas Ortin
The standard Komar charge is a -form that can be defined in spacetimes admitting a Killing vector and which is closed when the vacuum Einstein equations are satisfied. Its i…
gr-qc2023
Hairy black holes, scalar charges and extended thermodynamics
Romina Ballesteros, Tomás Ortín
We explore the use of the recently defined scalar charge which satisfies a Gauss law in stationary spacetimes, in the context of theories with a scalar potential. We find new condi…