The tricks up our sleeves: Neutron-star merger signals

Speaker

Liliana Caballero, Univeristy of Guelph

Abstract

We are entering an era of unprecedented capabilities for astronomical observations. The analysis of signals in multiple bands, i.e.,  gravitational waves, neutrino, gamma and X-rays emissions, will provide detailed insight about the physics of diverse astrophysical phenomena. In particular, neutron-star mergers represent one of the most interesting sources for these multi-messenger signals. The evolution of a merger is closely linked to gravity, nuclear and neutrino physics. Thus,observing such mergers promises answers to many unresolved puzzles, among others: Where and how are elements like gold produced in our Universe? What is the mechanism of powerful stellar explosions? In this colloquium, I shall provide an overview of neutron stars, as well as mergers and accretion disks in the context of nuclear astrophysics. I will discuss their connection to properties of nuclear matter and neutrino physics, presenting results on gravitational wave signals, neutrino observation, and the synthesis of neutron-rich nuclei.