1302.4499 (Kent Yagi et al.)
Kent Yagi, Nicolas Yunes
Neutron stars are not only described by their mass and radius, but also by how fast they spin (moment of inertia) and how much they can be deformed (Love number and quadrupole moment). These depend sensitively on the star's internal structure. We find universal relations between the moment of inertia, the Love number and the quadrupole moment that are independent of the equation of state. These relations can be used to learn observationally about neutron star deformations, break degeneracies in gravitational wave observations, and test General Relativity independently of nuclear-structure.
View original:
http://arxiv.org/abs/1302.4499
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