New Paper on GRMHD Simulations of Massive Black Hole Mergers

We submitted a new paper investigating the dynamics of magnetized plasma accreting onto merging supermassive black holes including, for the first time, the effect of misaligned black hole spins.

The purpose of simulations like these is to investigate possible electromagnetic emission that could be generated by these systems. Supermassive black hole mergers are powerful sources of gravitational waves that will be detected by the future LISA mission, but, as simulations like ours show, they could also produce electromagnetic counterparts, that could be detected by future X-ray observatories, such as Athena.

The Spritz Code

image of an Aperol Spritz cocktail

Our first paper on our new code Spritz has been published on Classical and Quantum Gravity. The code is also publicly available on Zenodo. This first paper presents tests in special and general relativistic magnetohydrodynamics. We are currently working on a second paper that will present our current tests of its equation of state driver and neutrino emission scheme.

The code will then be used for numerical relativity simulations of neutron star binary mergers.

My latest APS talk is now available on line

My latest talk at the “April” meeting of the American Physical Society that was held in Washington DC from January 28 to 31 2017 is now available on line on the conference web page. In this talk I presented a short overview of the most important results of our latest paper on “General relativistic magnetohydrodynamic simulations of binary neutron star mergers forming a long-lived neutron star“.

That session included also other interesting talks about neutron star simulations and magnetic fields, and many of those talks can also be downloaded from the APS April meeting web page.

© 2024 Bruno Giacomazzo

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