Sent from my iPhone, please excuse brevity and typos Begin forwarded message:

From: Isabelle Van Geet <Isabelle.vanGeet@solvayinstitutes.be> Date: 16 September 2024 at 14:29:12 CEST To: Isabelle Van Geet <Isabelle.vanGeet@solvayinstitutes.be> Subject: 2024 Jacques Solvay International Chair in Physics (Professor Samaya Nissanke) - Tuesday 1 October at 4:00 pm

Dear Colleagues,

We are pleased to announce the Inaugural Lecture of the 2024 Jacques Solvay International Chair in Physics by Professor Samaya Nissanke (UvA & Nikhef, The Netherlands).

The lecture will be held on Tuesday 1 October at 4:00 p.m (ULB, Campus Plaine, Building NO, 5th Floor, Salle Solvay).

Title: New Perspectives onto the Universe in the Era of Multi-Messenger Astrophysics

Abstract: Since the revolutionary discovery of gravitational wave (GW) emission from a binary black hole merger in 2015, the remarkable GW detectors LIGO, Virgo and KAGRA have detected at least ninety compact object mergers. These events are transforming modern astronomy. In particular, the first binary neutron star merger, dubbed GW170817, was observed in both gravitational and electromagnetic radiation, thus opening up a new era in multi-messenger astrophysics. The multi-messenger characterisation of such an event has enabled major advances into diverse fields of modern physics from gravity, high-energy astrophysics, nuclear physics, to cosmology. In this talk, I will present a review of gravitational wave observations to date, as well as my work in strong-field gravity astrophysics and how combining observations, theory and experiment have been key in making progress in this field. I will present the challenges and the opportunities that have emerged in multi-messenger astrophysics, and what the future holds in this new era.

Everybody is cordially invited!

Best wishes, Marc Henneaux