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The role of gas in massive black hole binary mergers

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  • UserAlessia Franchini, Universita' degli Studi di Milano Bicocca
  • ClockMonday 29 November 2021, 14:00-15:00
  • HouseOnline.

If you have a question about this talk, please contact Alexander Rasskazov .

Understanding the interaction of massive black hole binaries with their gaseous environment is crucial since at sub-parsec scales the binary is too wide for gravitational wave emission to take over and to drive the two black holes to merge.

The outcome of the binary-disc interaction in terms of binary semi-major axis evolution has been recently debated and is still unclear mainly due to numerical limitations, i.e. fixed orbit binaries or lack of resolution inside the cavity carved by the binary in its circumbinary disc.

We investigate the interaction between a massive black hole binary and a circumbinary disc using 3D hydrodynamics simulations.

Our results are especially important for massive black hole binaries in the LISA and PTA band.

This talk is part of the DAMTP Astrophysics Seminars series.

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