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Publication . Article . 2008

Influence of IMF draping direction and crustal magnetic field location on Martian ion beams

Ella Carlsson; David Brain; Janet G. Luhmann; Stas Barabash; A. Grigoriev; Holger Nilsson; Rickard Lundin;
Closed Access
Published: 01 May 2008 Journal: Planetary and Space Science, volume 56, pages 861-867 (issn: 0032-0633, Copyright policy )
Publisher: Elsevier BV

Abstract Data from the Ion Mass Analyzer (IMA) sensor of the ASPERA-3 instrument suite onboard Mars Express and data from the Magnetometer/Electron Reflectometer (MAG/ER) on Mars Global Surveyor have been analyzed to determine whether ion beam events (IBEs) are correlated with the direction of the draped interplanetary magnetic field (IMF) or the proximity of strong crustal magnetic fields to the subsolar point. We examined 150 IBEs and found that they are organized by IMF draping direction. However, no clear dependence on the subsolar longitude of the strongest magnetic anomaly is evident, making it uncertain whether crustal magnetic fields have an effect on the formation of the beams. We also examined data from the IMA sensor of the ASPERA-4 instrument suite on Venus Express and found that IBEs are observed at Venus as well, which indicates the morphology of the Martian and Venusian magnetotails are similar.

Subjects by Vocabulary

Microsoft Academic Graph classification: Martian Geophysics Longitude Subsolar point Venus biology.organism_classification biology Magnetic field Magnetic anomaly Geology Magnetometer law.invention law Interplanetary magnetic field


Space and Planetary Science, Astronomy and Astrophysics