INVESTIGADORES
BERTUCCI Cesar
congresos y reuniones científicas
Título:
Titan's induced magnetosphere from plasma wave and magnetometer observations
Autor/es:
MODOLO, R.; BERTUCCI, C.; CANU, P.; PIBERNE, R.; EDBERG, N. J.; ROSENQVIST, L.; KURTH, W. S.; GURNETT, D. A.; DOUGHERTY, M. K.
Reunión:
Congreso; AGU Fall Meeting 2010; 2010
Resumen:
Plasma wave observations are combined with the magnetometer measurements
to investigate Titan's induced magnetosphere. Electric field
emissions close to Titan are identified as upper hybrid resonance
emissions and therefore can provide a density estimate of Titan's
cold plasma. Some of Titan's flybys show a very strong asymmetry
between two flybys performed in similar geographical conditions. Good
examples are the Ta and Tb flybys, which have a similar trajectory in
the Titan interaction coordinate system and even though they have the
same illumination conditions, the density profiles present major
differences. Thermal plasma observations are displayed for the nominal
mission flybys in a draping coordinate system where the average ambient
magnetic field, the ideal flow direction and the motional electric field
correspond to the main axis of the system. This coordinate system
organizes the cold plasma observations and provides information on the
envelop of the induced magnetosphere and its global asymmetry.