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@inproceedings{43203, author = {Hledík, Stanislav and Stuchlík, Zdeněk}, address = {Opava}, booktitle = {Proceedings of RAGtime 6/7: Workshops on black holes and neutron stars}, keywords = {neutron star, oscillations, surface inhomogeneity}, language = {eng}, location = {Opava}, isbn = {80-7248-334-X}, pages = {189-208}, publisher = {Excitation of oscillations by a small inhomogeneity on the surface of a neutron star}, title = {Excitation of oscillations by a small inhomogeneity on the surface of a neutron star}, year = {2005} }
TY - JOUR ID - 43203 AU - Hledík, Stanislav - Stuchlík, Zdeněk PY - 2005 TI - Excitation of oscillations by a small inhomogeneity on the surface of a neutron star PB - Excitation of oscillations by a small inhomogeneity on the surface of a neutron star CY - Opava SN - 807248334X KW - neutron star, oscillations, surface inhomogeneity N2 - Properties of the gravitational perturbation force caused by a small inhomogeneity located on the surface of a neutron star are studied. The oscillating perturbation force in both the accretion disc rotating around the star and in the interior of a differentially rotating star is determined. Both vertical and radial components of the force are given and their relations are discussed. The frequency of the oscillations is given by the difference of the frequency of the rotation of the star surface, and the orbital frequency in the disc (the frequency of rotation of matter in the star interior). Outside the star, in the disc, the vertical and radial forces vary with the same phase. Inside a differentially rotating star, the variations of the forces are inthe opposite phase in an internal part of the star, while they are in the same phase in an external layer of the star. In an intermediate part of the star, an additional oscillatory change appears. ER -
HLEDÍK, Stanislav and Zdeněk STUCHLÍK. Excitation of oscillations by a small inhomogeneity on the surface of a neutron star. In \textit{Proceedings of RAGtime 6/7: Workshops on black holes and neutron stars}. Opava: Excitation of oscillations by a small inhomogeneity on the surface of a neutron star, 2005, p.~189-208, 19 pp. ISBN~80-7248-334-X.
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