Eigenfrequency of nodeless elastic vibrations locked in the crust of quaking neutron star
| Autor: | Bastrukov, S., Chang, H-K., Chen, G. -T., Molodtsova, I. |
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| Rok vydání: | 2008 |
| Předmět: | |
| Zdroj: | Mod. Phys. Lett. A, Vol. 23, No. 7 (2008) pp. 477-486 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1142/S0217732308026534 |
| Popis: | The Newtonian solid-mechanical theory of non-compressional spheroidal and torsional nodeless elastic vibrations in the homogenous crust model of a quaking neutron star is developed and applied to the modal classification of the quasi-periodic oscillations (QPOs) of X-ray luminosity in the aftermath of giant flares in SGR 1806-20 and SGR 1900+14. Particular attention is given to the low-frequency QPOs in the data for SGR 1806-20 whose physical origin has been called into question. Our calculations suggest that unspecified QPOs are due to nodeless dipole torsional and dipole spheroidal elastic shear vibrations. Comment: 10 pages, 3 figures: Mod.Phys.Lett. A23 (2008) 477 |
| Databáze: | arXiv |
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