How many ways are there to skin a star? Multi-messenger signals

Prof. Liliana Caballero (host Dickhoff), University of Guelph, Canada
January 31, 2018 at 4:00 pm
204 Crow
Event Description 

We are entering an era of unprecedented capabilities for astronomical observations and experimental nuclear techniques. 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. Likewise, experiments carried out at rare-isotope facilities offer fundamental input for the interpretation of these observations. Neutron-star mergers represent one of the most interesting sources for multi-messenger signals. As recently seen by the first neutron star-neutron star merger observation last year, such events promise answers to many unresolved puzzles, among which: 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, accretion disks and nuclear physics aspects. I will discuss the connection between compact objects and properties of nuclear matter and neutrino physics, presenting results on gravitational wave signals, neutrino observation, and the synthesis of elements.

Coffee: 3:30 pm, 245 Compton