Observations of magnetic anomaly signatures in Mars Express ASPERA-3 ELS data

Soobiah, Yasir (2006) Observations of magnetic anomaly signatures in Mars Express ASPERA-3 ELS data. Icarus, 182 (2). pp. 396-405. ISSN 0019-1035

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Abstract

Mars Express (MEX) Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) data is providing insights into atmospheric loss on Mars via the solar wind interaction. This process is influenced by both the interplanetary magnetic field (IMF) in the solar wind and by the magnetic ‘anomaly’ regions of the martian crust. We analyse observations from the ASPERA-3 Electron Spectrometer near to such crustal anomalies. We find that the electrons near remanent magnetic fields either increase in flux to form intensified signatures or significantly reduce in flux to form plasma voids. We suggest that cusps intervening neighbouring magnetic anomalies may provide a location for enhanced escape of planetary plasma. Initial statistical analysis shows that intensified signatures are mainly a dayside phenomenon whereas voids are a feature of the night hemisphere.

Item Type:
Journal Article
Journal or Publication Title:
Icarus
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1912
Subjects:
ID Code:
63148
Deposited By:
Deposited On:
25 Mar 2013 13:51
Refereed?:
Yes
Published?:
Published
Last Modified:
13 May 2020 02:05