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EIGENFREQUENCIES OF NODELESS ELASTIC VIBRATIONS LOCKED IN THE CRUST OF QUAKING NEUTRON STAR
- Source :
- Modern Physics Letters A. 23:477-486
- Publication Year :
- 2008
- Publisher :
- World Scientific Pub Co Pte Lt, 2008.
-
Abstract
- 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.<br />Comment: 10 pages, 3 figures: Mod.Phys.Lett. A23 (2008) 477
- Subjects :
- Physics
Nuclear and High Energy Physics
Elastic vibration
Astrophysics::High Energy Astrophysical Phenomena
Astrophysics (astro-ph)
FOS: Physical sciences
General Physics and Astronomy
Astronomy and Astrophysics
Crust
Astrophysics
Luminosity
Shear (sheet metal)
Vibration
Dipole
Neutron star
Newtonian fluid
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 17936632 and 02177323
- Volume :
- 23
- Database :
- OpenAIRE
- Journal :
- Modern Physics Letters A
- Accession number :
- edsair.doi.dedup.....afde4fa06878a44942b41b54ac8345f5