Seminar Details

The Radius of Neutron Stars

Robert Rutledge, McGill University
Wednesday, January 16, 4:00 PM - Nuclear Science Seminar
NSCL Lecture Hall

Neutron stars are the astrophysical tool by which constraints on the nuclear dense matter Equation of State (dEOS) will be measured. Recent observations of neutron stars have offered strong constraints the dEOS. I will discuss the observational scenario which leads us to conclude that we can measure the radius of neutron stars using X-ray spectroscopy. I will describe the recent work at McGill which has recently produced a +/-15% measurement of the neutron star radius, which strongly excludes several proposed dEOSs. I will also describe, in some detail, the systematic uncertainties in this method, and how they can be addressed with superior observations. I will conclude by offering strong observational guidance to our nuclear physics colleagues who study the dEOS.