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Testing the formation scenarios of binary neutron star systems with measurements of the neutron star moment of inertia
William G. Newton, Andrew W. Steiner, Kent Yagi
Two low mass neutron stars, J0737-3039B and the companion to J1756-2251, show strong evidence of being formed from the collapse of an ONeMg core in an electron capture supernova (E…
Approximate Universal Relations among Tidal Parameters for Neutron Star Binaries
Kent Yagi, Nicolas Yunes
One of largest uncertainties in nuclear physics is the relation between the pressure and density of supranuclear matter: the equation of state. Some of this uncertainty may be remo…
Approximate Universal Relations for Neutron Stars and Quark Stars
Kent Yagi, Nicolas Yunes
Neutron stars and quark stars are ideal laboratories to study fundamental physics at supra nuclear densities and strong gravitational fields. Astrophysical observables, however, de…
Theoretical Physics Implications of the Binary Black-Hole Mergers GW150914 and GW151226
Nicolas Yunes, Kent Yagi, Frans Pretorius
The gravitational wave observations GW150914 and GW151226 by Advanced LIGO provide the first opportunity to learn about physics in the extreme gravity environment of coalescing bin…
Black Hole Based Tests of General Relativity
Kent Yagi, Leo C. Stein
General relativity has passed all solar system experiments and neutron star based tests, such as binary pulsar observations, with flying colors. A more exotic arena for testing gen…
Can the Slow-Rotation Approximation be used in Electromagnetic Observations of Black Holes?
Dimitry Ayzenberg, Kent Yagi, Nicolas Yunes
Future electromagnetic observations of black holes may allow us to test General Relativity in the strong-field regime. Such tests, however, require knowledge of rotating black hole…