AlbaNova Colloquium

Measurements of Neutron Stars and the Dense Matter Equation of State

by Prof. James Lattimer (Stony Brook University)


Neutron stars are a window into the properties of dense nuclear
matter.  The first observed binary neutron star merger GW170817,
pulse-profile X-ray observations of PSR J0030+0415 by the Nuclear Star
Interior Composition Explorer (NICER), nuclear
physics measurements, and new theoretical many-body studies of neutron
matter now powerfully constrain the properties of neutron stars and
the equation of state of dense matter.  The use of parameterized
equations of state, which probe the uncertain regions of dense matter
and revealed several semi-universal relations connecting global
neutron star properties, have helped quantify these constraints.