Astronomy

  • 2020 Mar 03

    BHI Colloquium

    1:30pm to 2:30pm

    Location: 

    BHI Meeting Room

    Mu-Tao Wang (Columbia University)

    Title: On an invariant notion of angular momentum at null infinity

    Abstract: We extend the earlier work of Chen-Wang-Yau and Keller-Wang-Yau to define total angular momentum of an asymptotically flat null hypersurface. This induces an angular momentum definition at any section of null infinity. We prove that this definition satisfies several invariant properties that include the BMS invariance.

     

    Jose L....

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  • 2020 Mar 10

    BHI Colloquium

    1:30pm to 2:30pm

    Location: 

    BHI Meeting Room

    Katie Bouman (Caltech)

    Title: TBD

    Abstract: TBD

     

    Chi-kwan Chan (University of Arizona)

    Title: TBD

    Abstract: TBD

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