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dc.contributor.author Masters, A.
dc.contributor.author Arridge, C. S.
dc.contributor.author Dougherty, M. K.
dc.contributor.author Bertucci, Cesar
dc.contributor.author Billingham, L.
dc.contributor.author Schwartz, S. J.
dc.contributor.author Jackman, C. M.
dc.contributor.author Bebesi, Z.
dc.contributor.author Coates, A. J.
dc.contributor.author Thomsen, M. F.
dc.date.available 2017-07-17T15:51:08Z
dc.date.issued 2008-12
dc.identifier.citation Masters, A.; Arridge, C. S.; Dougherty, M. K.; Bertucci, Cesar; Billingham, L.; et al.; Cassini encounters with hot flow anomaly-like phenomena at Saturn's bow shock; American Geophysical Union; Geophysical Research Letters; 35; 2; 12-2008; 1-6
dc.identifier.issn 0094-8276
dc.identifier.uri http://hdl.handle.net/11336/20678
dc.description.abstract Crossings of Saturn´s magnetopause made by the Cassini spacecraft on 12, 13 and 17 March 2006 are analysed. During this period Cassini´s trajectory was approximately parallel to the magnetopause boundary given by a model of the surface. Magnetic field and electron data are used to identify excursions into the magnetosheath bounded by crossings of the magnetopause current layer. Minimum variance analysis of the magnetic field vector measurements is used to determine the normal to the boundary for each crossing. The normals corresponding to the crossings oscillate about an average orientation that is consistent with the unperturbed normal predicted by the surface model. This reveals the presence of regular boundary waves with a direction of propagation found to be within 24° of Saturn´s rotational equator. Two categories of boundary wave are identified: the first with a period of the order of hours, and the second with a period of 45±9 min. Based on the propagation direction and a comparison of magnetospheric and magnetosheath magnetic fields, we conclude that both types of wave were driven by the Kelvin-Helmholtz instability. The observed boundary perturbations are consistent with a superposition of different types of surface wave activity.
dc.format application/pdf
dc.language.iso eng
dc.publisher American Geophysical Union
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject Saturn
dc.subject Magnetosphere
dc.subject Magnetopause
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Cassini encounters with hot flow anomaly-like phenomena at Saturn's bow shock
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2017-07-17T13:33:23Z
dc.journal.volume 35
dc.journal.number 2
dc.journal.pagination 1-6
dc.journal.pais Estados Unidos
dc.journal.ciudad Nueva York
dc.description.fil Fil: Masters, A.. Imperial College London; Reino Unido
dc.description.fil Fil: Arridge, C. S.. University College London; Estados Unidos
dc.description.fil Fil: Dougherty, M. K.. Imperial College London; Reino Unido
dc.description.fil Fil: Bertucci, Cesar. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil Fil: Billingham, L.. Imperial College London; Reino Unido
dc.description.fil Fil: Schwartz, S. J.. Imperial College London; Reino Unido
dc.description.fil Fil: Jackman, C. M.. Imperial College London; Reino Unido
dc.description.fil Fil: Bebesi, Z.. Research Institute for Particle and Nuclear Physics; Hungría
dc.description.fil Fil: Coates, A. J.. University College London; Estados Unidos
dc.description.fil Fil: Thomsen, M. F.. Los Alamos National Laboratory; Estados Unidos
dc.journal.title Geophysical Research Letters
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1029/2007GL032371
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1029/2007GL032371/abstract


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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)