Dynamical descalarization with a jump during black hole merger

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Online (only) - Please, note the unusual time
Daniela Doneva (University of Tübingen)

The black hole merger in scalar-Gauss-Bonnet gravity can lead to dynamical descalarization this is a spontaneous release of the scalar
hair of the newly formed black hole. Depending on the exact form of the Gauss-Bonnet coupling function, the stable scalarized solutions
can be either continuously connected to the Schwarzschild black hole, or the transitions between the two can happen with a jump. In the present talk, we will discuss the black hole head-on collisions in scalar-Gauss-Bonnet gravity prone to dynamical descalization and the gravitational wave manifestation of such a jump.

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