My former master student Sofia Maggioni won the 2022 INFN prize “Milla Baldo Ceolin” for the best theses in the field of theoretical physics. Her master thesis was titled “Fully Relativistic Magnetohydrodynamic Simulations of Spinning Massive Black Hole Binaries” and she worked under my supervision and in collaboration with Prof. Monica Colpi and Mr. Federico Cattorini.
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.
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.
Both workshops were successful and with very interesting discussions about the future of the Einstein Toolkit and our plan for the next year of our TCAN international collaboration funded by NASA. Many young researchers joined both meetings indicating a strong potential growth for the field of numerical relativity applied at astrophysical sources.
Oggi, su invito degli studenti e delle studentesse di UNITiN, ho presentato i risultati della collaborazione Event Horizon Telescope. Le slides del mio seminario sono adesso disponibili in formato pdf. Il video del seminario è al momento accessibile via Facebook. Più di 300 studenti sono stati presenti all’evento che è stato anche trasmesso in diretta video via Facebook. Il lavoro svolto dall’associazione UNITiN è stato eccellente come al solito e mi ha fatto piacere partecipare.
Almudena Arcones, Marius Eichler, and I wrote a chapter for a book edited by the former EU COST Action “NewCompStar”. The chapter is titled “Electromagnetic Emission and Nucleosynthesis from Neutron Star Binary Mergers” and it is part of the book “The Physics and Astrophysics of Neutron Stars” published by Springer. In this chapter you can find a review of the current state of the art in the field of electromagnetic emission and nucleosynthesis from neutron star binaries (NS-NS and NS-BH systems).