PIRSA:21060032

Mass loss law for weak gravitational fields: With or without a positive cosmological constant

Hoque, S.J. (2021). Mass loss law for weak gravitational fields: With or without a positive cosmological constant. Perimeter Institute. https://pirsa.org/21060032

Hoque, Sk Jahanur. Mass loss law for weak gravitational fields: With or without a positive cosmological constant. Perimeter Institute, Jun. 08, 2021, https://pirsa.org/21060032 

          @misc{ pirsa_PIRSA:21060032,
            doi = {10.48660/21060032},
            url = {https://pirsa.org/21060032},
            author = {Hoque, Sk Jahanur},
            keywords = {Other},
            language = {en},
            title = {Mass loss law for weak gravitational fields: With or without a positive cosmological constant},
            publisher = {Perimeter Institute},
            year = {2021},
            month = {jun},
            note = {PIRSA:21060032 see, \url{https://pirsa.org}}
          }

Sk Jahanur Hoque Charles University

DOI 10.48660/21060032
Collection
Talk Type Conference
Subject

Abstract

Bondi's celebrated mass loss formula measures the rate of change of energy carried away from an isolated system (in asymptotically flat space-time) by gravitational radiation. In this talk, we generalize this idea to the de Sitter setting. We derive a formula for the total canonical energy, and its flux, of weak gravitational waves on a de Sitter background. Based on arXiv:2003.09548 [gr-qc], arXiv: 2103.05982 [gr-qc].