Mostrar el registro sencillo del ítem Bertucci, Cesar Sinclair, B. Achilleos, N. Hunt, P. Dougherty, M. K. Arridge, C. S. 2017-07-17T16:20:33Z 2009-12
dc.identifier.citation Bertucci, Cesar; Sinclair, B.; Achilleos, N.; Hunt, P.; Dougherty, M. K.; et al.; The variability of Titan's magnetic environment; Elsevier; Planetary and Space Science; 57; 14-15; 12-2009; 1813-1820
dc.identifier.issn 0032-0633
dc.description.abstract With a mean orbital radius of 20.2 Saturnian radii (1 Saturn radius RS=60,330 km), Titan is usually located within the kronian magnetosphere. 3.5 years of Cassini magnetometer observations in the vicinity of Titan´s orbit reveal that the moon´s magnetic environment is strongly affected by the presence of Saturn´s magnetodisk. As a result of the disk´s solar-wind-induced asymmetry, Titan is exposed to quasi-dipolar fields in the noon sector, and planetward, swept-back fields in the dawn, dusk and midnight sectors. These magnetic properties indicate that the moon is, on average, south of the central current sheet and immersed in Saturn´s rotating magnetospheric plasma for all local times (SLT). At a given SLT, Titan´s distance from the central current sheet associated with the magnetodisk depends on the solar wind pressure and on the phase of the Saturn´s kilometric radiation (SKR). The influence of the solar wind is present at all SLT (although dominant in the noon sector), whereas the SKR modulation seems to affect the magnetic field to first-order at least in the dawn sector. Near dawn local times, Titan tends to be farther from the disk at SKR longitudes around ˜140° and closer to it for longitudes around ˜320°. Depending on these factors, Titan is exposed to either: (i) a ‘magnetodisk lobe’ regime where the plasma beta is low and fields are radially ‘stretched’ and usually stronger or (ii) a ‘current sheet’ regime—characterized by quasi-dipolar, relatively weak fields and a high-beta plasma.
dc.format application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject Planetary magnetospheres
dc.subject Magnetodisk
dc.subject Titan
dc.subject Plasma interactions with unmagnetized bodies
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title The variability of Titan's magnetic environment
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2017-07-17T13:33:45Z
dc.journal.volume 57
dc.journal.number 14-15
dc.journal.pagination 1813-1820
dc.journal.pais Reino Unido
dc.journal.ciudad Londres
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. Imperial College London; Reino Unido
dc.description.fil Fil: Sinclair, B.. Imperial College London; Reino Unido
dc.description.fil Fil: Achilleos, N.. University College London; Estados Unidos
dc.description.fil Fil: Hunt, P.. Imperial College London; Reino Unido
dc.description.fil Fil: Dougherty, M. K.. Imperial College London; Reino Unido
dc.description.fil Fil: Arridge, C. S.. University College London; Estados Unidos
dc.journal.title Planetary and Space Science
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/

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