PIRSA:24090106 Scientific Series Strong Gravity

DOI10.48660/24090106

Series: Strong Gravity

Gutierrez, E. (2024). Binary neutron star mergers: from numerical relativity simulations to electromagnetic observables. Perimeter Institute. https://pirsa.org/24090106

Gutierrez, Eduardo. Binary neutron star mergers: from numerical relativity simulations to electromagnetic observables. Perimeter Institute, Sep. 05, 2024, https://pirsa.org/24090106 

@misc{ pirsa_PIRSA:24090106,
  doi = {10.48660/24090106},
  url = {https://pirsa.org/24090106},
  author = {Gutierrez, Eduardo},
  keywords = {Strong Gravity},
  language = {en},
  title = {Binary neutron star mergers: from numerical relativity simulations to electromagnetic observables},
  publisher = {Perimeter Institute},
  year = {2024},
  month = {sep},
  note = {PIRSA:24090106 see, \url{https://pirsa.org}}
}

Abstract

In this talk, I will provide an overview of neutron star (NS) mergers, highlighting the insights gained through numerical relativity simulations. I will mainly focus on the role of the cocoon shock breakout emission as a key early electromagnetic counterpart of NS mergers, with special relevance to events like GW170817. I will explore how the properties of the merger ejecta and the nature of the central engine influence the resulting emission. Additionally, I will present recent advancements in the development of our new general relativistic magnetohydrodynamics (GR-MHD) code GR-Athena++, and share ongoing research efforts on the evolution of magnetic fields in the post-merger remnant.

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