Gravitational waves in the inhomogeneous Universe


Oguri, M. (2019). Gravitational waves in the inhomogeneous Universe. Perimeter Institute. https://pirsa.org/19090019


Oguri, Masamune. Gravitational waves in the inhomogeneous Universe. Perimeter Institute, Sep. 03, 2019, https://pirsa.org/19090019


          @misc{ pirsa_PIRSA:19090019,
            doi = {10.48660/19090019},
            url = {https://pirsa.org/19090019},
            author = {Oguri, Masamune},
            keywords = {Cosmology, Particle Physics, Strong Gravity},
            language = {en},
            title = {Gravitational waves in the inhomogeneous Universe},
            publisher = {Perimeter Institute},
            year = {2019},
            month = {sep},
            note = {PIRSA:19090019 see, \url{https://pirsa.org}}

Masamune Oguri Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU)


The discovery of gravitational waves from a binary black hole merger in 2015 opened up a new window to study the Universe, including the origin of black holes, the nature of dark matter, and the expansion history of the Universe. However, gravitational waves emitted from binary mergers propagate through the inhomogeneous Universe, which can have a considerable impact on observations of gravitational waves, in good or bad ways. I will highlight some examples of the effects of the inhomogeneity on gravitational wave observations, including their possible applications and implications.