Energetic Neutral Atom Emissions from Titan Interaction with Saturn's Magnetosphere

  title={Energetic Neutral Atom Emissions from Titan Interaction with Saturn's Magnetosphere},
  author={D G Mitchell and Pontus C. Brandt and E. C. Roelof and Jannis S. Dandouras and Stamatios M. Krimigis and Barry H. Mauk},
  pages={989 - 992}
The Cassini Magnetospheric Imaging Instrument (MIMI) observed the interaction of Saturn's largest moon, Titan, with Saturn's magnetosphere during two close flybys of Titan on 26 October and 13 December 2004. The MIMI Ion and Neutral Camera (INCA) continuously imaged the energetic neutral atoms (ENAs) generated by charge exchange reactions between the energetic, singly ionized trapped magnetospheric ions and the outer atmosphere, or exosphere, of Titan. The images reveal a halo of variable ENA… Expand
Titan's exosphere and its interaction with Saturn's magnetosphere
  • I. Dandouras, P. Garnier, +4 authors S. Krimigis
  • Physics, Medicine
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2008
Remote-sensing measurements performed in the upper thermosphere and in the exosphere by the ion and neutral mass spectrometer instrument provide a powerful diagnostic of Titan's exosphere and its interaction with the Kronian magnetosphere. Expand
The exosphere of Titan and its interaction with the kronian magnetosphere: MIMI observations and modeling
Abstract Titan's nitrogen-rich atmosphere is directly bombarded by energetic ions, due to its lack of a significant intrinsic magnetic field. Singly charged energetic ions from Saturn magnetosphereExpand
Interaction of Titan's ionosphere with Saturn's magnetosphere
  • A. Coates
  • Physics, Biology
  • Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2008
How Titan's ionosphere and Saturn's magnetosphere interact is reviewed, using measurements from Cassini low-energy particle detectors, and ionization processes and ionospheric photoelectrons are discussed, including their effect on ion escape from the ionosphere. Expand
The lower exosphere of Titan: Energetic neutral atoms absorption and imaging
The Saturn magnetosphere interacts with the Titan atmosphere through various mechanisms. One of them leads, by charge exchange reactions between the energetic Saturnian ions and the exosphericExpand
Investigation of energetic proton penetration in Titan's atmosphere using the Cassini INCA instrument
Abstract Saturn's largest moon, Titan, provides an interesting opportunity to study how dense atmospheres interact with the surrounding plasma environment. Without an intrinsic magnetic field, thisExpand
Ring current at Saturn: Energetic particle pressure in Saturn's equatorial magnetosphere measured with Cassini/MIMI
[1] The Magnetospheric Imaging Instrument (MIMI) on the Cassini spacecraft provides measurements of the energetic ion population within the magnetosphere of Saturn. Energetic ion directionalExpand
Influence of asymmetries in the magnetic draping pattern at Titan on the emission of energetic neutral atoms
Abstract We model the emission of energetic neutral atoms (ENAs) that are generated by the interaction between energetic ions from Saturn's magnetosphere and neutrals from the upper atmosphere of theExpand
Investigating magnetospheric interaction effects on Titan's ionosphere with the Cassini orbiter Ion Neutral Mass Spectrometer, Langmuir Probe and magnetometer observations during targeted flybys
Abstract In the ∼6 years since the Cassini spacecraft went into orbit around Saturn in 2004, roughly a dozen Titan flybys have occurred for which the Ion Neutral Mass Spectrometer (INMS) measuredExpand
Statistical analysis of the energetic ion and ENA data for the Titan environment
Abstract The MIMI experiment (Magnetosphere Imaging Instrument) onboard Cassini is dedicated to the study of energetic particles, with in particular LEMMS analyzing charged particles, or the INCAExpand
Energy Deposition Processes in Titan's Upper Atmosphere
Most of Titan's atmospheric organic and nitrogen chemistry, aerosol formation, and atmospheric loss are driven from external energy sources such as Solar UV, Saturn's magnetosphere, solar wind andExpand


Magnetosphere Imaging Instrument (MIMI) on the Cassini Mission to Saturn/Titan
The magnetospheric imaging instrument (MIMI) is a neutral and charged particle detection system on the Cassini orbiter spacecraft designed to perform both global imaging and in-situ measurements toExpand
Dynamics of Saturn's Magnetosphere from MIMI During Cassini's Orbital Insertion
ENA imaging has revealed a radiation belt that resides inward of the D ring and is probably the result of double charge exchange between the main radiation belt and the upper layers of Saturn's exosphere. Expand
Non-LTE models of Titan's upper atmosphere
Models for the thermal structure of Titan's upper atmosphere, between 0.1 mbar and 0.01 nbar are presented. The calculations include non-LTE heating/cooling in the rotation-vibration bands of CH4,Expand
New perspectives on Titan's upper atmosphere from a reanalysis of the Voyager 1 UVS solar occultations
Abstract We have reanalyzed the Voyager 1 UVS solar occultations by Titan to expand upon previous analyses and to resolve inconsistencies that have been noted in the scientific literature. To do so,Expand