25 South Green Drive, Athens, Ohio 45701

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The Physics & Astronomy Colloquium Series presents Madappa Prakash of Ohio University discussing "Neutron Star News in the Multi-messenger Era" on April 8.


Abstract: Thanks to multiple astronomical observatories and terrestrial detectors, neutron stars (NSs) can now be observed from signals that include photons, neutrinos, and gravitational waves (GW). The detection of gravitational and electromagnetic (EM) waves from the binary neutron star merger event GW170817 by the LIGO/Virgo collaboration and x-ray pulse variations from NSs observed by the NICER observatory are some examples. Theoretical interpretation of these observations using modern theoretical tools in nuclear and gravitational physics have shed valuable insight into the nature of strong interactions at supra-nuclear densities. Coupled with the discovery of NSs as massive as 2 solar masses from radio pulse observations, inferences of NS radii from GW and EM data are beginning to tightly constrain the equation of state of dense matter.  In this talk, I will highlight the prospects for significant advances in hot and dense matter theory, particularly in view of future observations in upgraded GW detectors, and planned new x-ray and radio observatories.

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