Dynamics of supermassive black holes

Postprocessing massive black hole dynamics in cosmological simulations

Cosmological simulations have a spatial resolution below which you cannot resolve processes of supermassive black hole dynamics. After a galaxy merger, the massive black hole binary inspirals towards each other and various environmental effects of the merger host contributes to the hardening of the binary. I work on models that incorporate such physical effects (Satheesh et al., 2025).

Illustration of the binary black hole hardening process in galaxy mergers.

References

2025

  1. ApJ
    Mergers and Recoil in Triple Massive Black Hole Systems from Illustris
    Pranav Satheesh, Laura Blecha, and Luke Zoltan Kelley
    submitted to ApJ, Jun 2025