## "The classical evolution of binary black hole systems in scalar-tensor theories"Justin Ripley
, University of Cambridge
[Host: Alexander Saffer]
ABSTRACT:
In this talk I will discuss recent work on numerically solving for the binary black hole dynamics of black holes in Einstein scalar Gauss-Bonnet (ESGB) gravity. This modified gravity theory can be motivated by effective field theory reasoning, and admits scalarized black hole solutions. These two facts make it a promising theory to constrain using binary black hole, gravitational wave observations. I will discuss how recent advances in mathematical relativity--in particular, the development of the "modified harmonic formulation"--have opened up the possibility of constructing fully nonlinear solutions to the equations of motion of ESGB gravity (in addition to a class of scalar-tensor modified theories known as "Horndeski" theories). I will discuss numerical simulations of single and binary black hole systems in these theories, and the gravitational and scalar radiation they emit. |
Gravity SeminarMonday, February 8, 2021 1:00 PM Online, Room Zoom Note special time. Note special room.
Join Zoom Meeting:## https://virginia.zoom.us/j/99269571512
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