Jul 15 – 19, 2024
Perimeter Institute for Theoretical Physics
America/Toronto timezone
Reminder: Monday and Tuesday's sessions take place at Federation Hall (University of Waterloo), with the remainder of the week at Perimeter Institute.

Do Neutron stars k-mouflage?

Jul 16, 2024, 9:00 AM
45m
Federation Hall (University of Waterloo)

Federation Hall

University of Waterloo

Speaker

Dina Traykova (Max Planck Institute for Gravitational Physics)

Description

Scalar-tensor theories with a screening mechanism can serve as a viable model of cosmic acceleration, while still passing existing local tests of gravity. The validity of different screening mechanisms, such as kinetic screening (or k-mouflage) has been studied extensively in static and weak field regimes. However, only recently have works started to focus on determining whether these would work as expected near extremely compact objects. In this talk I will discuss some recent efforts to characterise kinetic screening mechanisms in these highly dynamical and non-linear regimes using numerical relativity in the case of a single oscillating neutron star, as well as how this picture may change for a binary neutron star configuration in a quasi-equilibrium state.

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External references