Tag: simulations

“Relativistic Fluids around Compact Objects” Workshop

May 15, 2025 / Bruno

Last week (May 5 to 7 2025), I had the pleasure of attending the Relativistic Fluids around Compact Objects workshop, held at the Nicolaus Copernicus Astronomical Center (CAMK) in Warsaw, Poland. This event brought together leading experts in astrophysics to discuss the latest advancements in GRMHD simulations and their implications for compact objects like black holes and neutron stars.

The workshop covered a wide range of topics, and I had the opportunity to present my recent results in the modeling of multi-messenger signals from accreting supermassive black hole mergers (slides available here).

The workshop provided a fantastic opportunity to connect with colleagues, exchange ideas, and explore potential collaborations. I’m grateful to the organizers for putting together such a well-structured event and to everyone who attended my talk.

Sofia Maggioni won the “Milla Baldo Ceolin” prize

August 3, 2022 / Bruno

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.

The news, in Italian, can be found on the Bicocca news blog.

New Paper on GRMHD Simulations of Massive Black Hole Mergers

February 18, 2022 / Bruno

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.

"Misaligned Spinning Binary Black Hole Mergers in Hot Magnetized Plasma" by PhD student Federico Cattorini investigates massive black hole mergers via #HPC GRMHD simulations at @Cineca1969 .https://t.co/RVAtTCAgt9 @LISACommunity @unimib @mediainaf @INFN_ #astronomy pic.twitter.com/gH43WLKGvb
— Bruno Giacomazzo (@BrunoGiacomazzo) February 18, 2022

My latest APS talk is now available on line

February 3, 2017 / Bruno

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.

Report on my PRACE project now available on GCS webpage

November 13, 2016 / Bruno

giacomazzo_grsimstar_01 The Gauss Centre for Supercomputing (GCS) has now published online my report on my latest PRACE project “GRSimStar – General Relativistic Simulations of Binary Neutron Star Mergers”. The report is written in a way that can (hopefully) be understood by the general public and includes also a short movie from one of my simulations. Enjoy!