School of Physics and Astronomy

Astronomy Unit Seminar -- What is inside a neutron star?

15 November 2019

Time: 2:30 - 3:30pm
Speaker: Daniel Watts
Venue: G. O. Jones Building, Room 610

There are many open questions about the structure, properties and cooling mechanisms of neutron stars. Progress requires a better understanding of the microscopic composition of the star and its resulting equation of state.  Combining measurements from particle accelerator facilities and star merger processes offers new opportunities to develop a deeper understanding of what is inside the star. The talk will describe how recent measurements on atomic nuclei at the femtoscale can be used as a mini-laboratory for nucleonic neutron star matter. The recent exciting evidence for a new bosonic hexaquark particle will also be presented. Neutron star calculations including the hexaquark indicate the new particle could have a significant impact on neutron star composition and mass limits.