PIRSA:25100099

Video URL

https://pirsa.org/25100099

Multi-messenger explosions from compact objects at all scales

Combi, L. (2025). Multi-messenger explosions from compact objects at all scales. Perimeter Institute for Theoretical Physics. https://pirsa.org/25100099

Combi, Luciano. Multi-messenger explosions from compact objects at all scales. Perimeter Institute for Theoretical Physics, Oct. 06, 2025, https://pirsa.org/25100099 

          @misc{ scivideos_PIRSA:25100099,
            doi = {10.48660/25100099},
            url = {https://pirsa.org/25100099},
            author = {Combi, Luciano},
            keywords = {Other Physics},
            language = {en},
            title = {Multi-messenger explosions from compact objects at all scales},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2025},
            month = {oct},
            note = {PIRSA:25100099 see, \url{https://scivideos.org/index.php/pirsa/25100099}}
          }

Luciano Combi Perimeter Institute for Theoretical Physics

Talk numberPIRSA:25100099
DOI10.48660/25100099
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The calm of the quiescent sky is regularly interrupted by bursts of light that can outshine the entire galaxy. These powerful explosions are associated with mergers of compact objects, the collapse of stars, and rapidly accreting black holes, where gravitational binding energy is released and efficiently converted into radiation. The advent of electromagnetic time-domain surveys, high-energy telescopes, and gravitational-wave detectors is unveiling how matter works at these extreme conditions, offering insight into fundamental questions such as: How do compact objects form and acquire their magnetic fields? Which mechanisms launch outflows and jets? What determines the nature of the remnants they leave behind?  What are the main sites of heavy-element production?

 
In this talk, I will present recent progress in modeling compact-object mergers and collapse across the mass spectrum, emphasizing how common physical principles govern systems from stellar-mass mergers to supermassive binary black holes. I will highlight how novel multi-scale, multi-physics simulations connect plasma physics, nuclear processes, and strong gravity to the signals we now observe across the electromagnetic and gravitational-wave spectra.