Empirical formula of crustal torsional oscillations
arXiv:1602.04558 · doi:10.1103/PhysRevD.93.044059
Abstract
Crustal torsional oscillations depend on not only crust properties but also the stellar mass and radius. Thus, one could extract stellar information by identifying the observed frequencies of stellar oscillations with the crustal torsional oscillations. Owing to the confinement of torsional oscillations inside the crust region of neutron stars, we successfully derive an empirical formula for the fundamental crustal torsional oscillations as a function of the stellar mass, radius, the so-called slope parameter of the nuclear symmetry energy, and the angular index of oscillations, with which one can estimate the frequencies with high accuracy. This empirical formula could be valuable in both the astrophysics and nuclear physics communities.
accepted for publication in PRD
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Cited by in corpus (15)
- Towards Understanding Astrophysical Effects of Nuclear Symmetry Energy
- Constraints on the nuclear equation of state and the neutron star structure from crustal torsional oscillations
- Probing nuclear bubble structure via neutron star asteroseismology
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- Deformed crystals and torsional oscillations of neutron star crust
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- Powerful flares and magneto-elastic oscillations of magnetars
- Zeeman effect in oscillations of magnetars with toroidal magnetic fields