2020 CAP Virtual Sessions / Sessions virtuelle de l'ACP 2020

New quasilocal mass and multipole expansion in scalar-tensor gravity

11 Jun 2020, 12:45

15m

Virtual Platforms

Invited Speaker / Conférencier(ère) invité(e) Theoretical Physics / Physique théorique (DTP-DPT) R-DTP-1: Theoretical Physics I

Speaker

Prof. Valerio Faraoni

Description

A new generalization of the Hawking-Hayward quasilocal mass to scalar-tensor gravity is compared, for vacum asymptotically flat stationary geometries, with multipole expansion of the gravitational field in this class of theories. The quasilocal mass at spatial infinity coincides with the monopole term, a necessary check lending credibility to this construct.
[Based on V. Faraoni & J. Côté, Phys. Rev. D 100, 084015 (2019)]