5–10 Jul 2021
Europe/Rome timezone

Binary neutron star merger simulations: long-lived remnants, short gamma-ray bursts, and kilonovae

9 Jul 2021, 07:20
25m
Talk in the parallel session Explosive events associated with compact-object binary mergers Explosive Events Associated with Compact-Object Binary Mergers

Speaker

Jay Vijay Kalinani (University of Padova)

Description

In the era of multi-messenger astrophysics, binary neutron star (BNS) mergers have proven to be one of the prime sources of gravitational waves (GWs), also able to produce short-gamma ray bursts (SGRBs) as well as radioactively powered kilonovae. General relativistic magnetohydrodynamic (GRMHD) simulations represent a fundamental tool to probe the underlying physical mechanisms involved in such merger events, including the crucial effects of magnetic fields. In this talk, I will discuss some of the key results from our recent GRMHD simulations of BNS mergers. In particular, I will focus on the importance of magnetic fields and their amplification mechanisms in merger events, the post-merger remnant structure and its rotation profile, magnetically driven mass outflows that could significantly contribute to kilonova emission, and the implications for the production of SGRB jets.

Primary authors

Jay Vijay Kalinani (University of Padova) Dr Riccardo Ciolfi (INAF, Astronomical Observatory of Padova, Italy) Dr Wolfgang Kastaun (Max Planck Institute for Gravitational Physics (AEI), Hannover, Germany ) Prof. Bruno Giacomazzo (University of Milano Bicocca, Italy)

Presentation materials

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