Special Seminar - Quark matter in the cores of neutron stars

Aleksi Kurkela (University of Stavanger)

Nov 9, 2020 11:00 AM
Special Seminar

Title: Quark matter in the cores of neutron stars

Abstract:

Neutron stars are the densest astrophysical objects in the universe. Cores of neutron stars reach densities as high as those realized in ultrarelativistic heavy-ion collisions where ordinary nuclear matter melts into a new phase of matter, quark matter. This naturally raises the question: does quark matter also exist inside neutron stars? In my talk, I describe how recent advancements in theory of superdense matter and in observations of neutron stars—such as the LIGO/Virgo detection of gravitational waves arising from a merger of two neutron stars—can inform us about what lies in the centres of neutron stars. I discuss how the different constraints point to the existence of quark matter cores in large neutron stars.




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