INVESTIGADORES
BERTUCCI Cesar
congresos y reuniones científicas
Título:
Cassini observations of ULF waves during the TA Titan flyby
Autor/es:
RUSSELL, C. T.; NEUBAUER, F. M.; DOUGHERTY, M.; LEISNER, J. S.; BERTUCCI, C.; TSURUTANI, B. T.
Reunión:
Congreso; AGU Fall Meeting 2004; 2004
Resumen:
ULF waves are effective in dissipating free energy produced in the
plasma during the flow of plasma past bodies with atmospheres and they
provide diagnostics of the processes taking place. At Io in the jovian
magnetosphere strong ion cyclotron waves were observed by Galileo but
during the Voyager encounter with Titan at Saturn no clear ion cyclotron
waves were seen. During the TA encounter we will attempt to detect ion
cyclotron waves to assess the rate of loss of atmosphere from Titan
through ion pickup. If present, we can use the amplitude and spatial
extent of these waves to assess the role of fast neutrals in
contributing to the loss process, contrasting the interaction with that
of Io. Finally, we examine the nature of waves across the full frequency
spectrum to determine the power spectral density and nature of all waves
generated in the interaction.