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Article overview
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Imprints of the nuclear symmetry energy on gravitational waves from the axial w-modes of neutron stars | De-Hua Wen
; Bao-An Li
; Plamen G. Krastev
; | Date: |
26 Feb 2009 | Abstract: | The eigen-frequencies of the first few axial w-modes of oscillating neutron
stars are studied using the continued fraction method with an Equation of State
(EOS) partially constrained by the recent terrestrial nuclear laboratory data.
It is shown that the density dependence of the nuclear symmetry energy
$E_{sym}(
ho)$ affects significantly both the frequencies and the damping
times of these modes. Besides confirming the previously found universal
behavior of the mass-scaled eigen-frequencies as functions of the compactness
of neutron stars, we explored several alternative universal scaling functions.
Moreover, the $w_{II}$-mode is found to exist only for neutron stars having a
compactness of $M/Rgeq 0.1078$ independent of the EOS used. | Source: | arXiv, 0902.4702 | Services: | Forum | Review | PDF | Favorites |
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