Mostrar el registro sencillo del ítem
dc.contributor.author
Bertucci, Cesar
dc.contributor.author
Sinclair, B.
dc.contributor.author
Achilleos, N.
dc.contributor.author
Hunt, P.
dc.contributor.author
Dougherty, M. K.
dc.contributor.author
Arridge, C. S.
dc.date.available
2017-07-17T16:20:33Z
dc.date.issued
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.identifier.uri
http://hdl.handle.net/11336/20687
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/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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
dc.date.updated
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/http://dx.doi.org/10.1016/j.pss.2009.02.009
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032063309000543
Archivos asociados