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Science Enhancements by the MAVEN Participating Scientists

Abstract

NASA implemented a Participating Scientist Program and released a solicitation for the Mars Atmosphere and Volatile EvolutioN mission (MAVEN) proposals on February 14, 2013. After a NASA peer review panel evaluated the proposals, NASA Headquarters selected nine on June 12, 2013. The program’s intent is to enhance the science return from the mission by including new investigations that broaden and/or complement the baseline investigations, while still addressing key science goals. The selections cover a broad range of science investigations. Included are: a patching of a 3D exosphere model to an improved global ionosphere-thermosphere model to study the generation of the exosphere and calculate the escape rates; the addition of a focused study of upper atmosphere variability and waves; improvement of a multi-fluid magnetohydrodynamic model that will be adjusted according to MAVEN observations to enhance the understanding of the solar-wind plasma interaction; a global study of the state of the ionosphere; folding MAVEN measurements into the Mars International Reference Ionosphere under development; quantification of atmospheric loss by pick-up using ion cyclotron wave observations; the reconciliation of remote and in situ observations of the upper atmosphere; the application of precise orbit determination of the spacecraft to measure upper atmospheric density and in conjunction with other Mars missions improve the static gravity field model of Mars; and an integrated ion/neutral study of ionospheric flows and resultant heavy ion escape. Descriptions of each of these investigations are given showing how each adds to and fits seamlessly into MAVEN mission science design.

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Acknowledgement

Support from NASA’s MAVEN Participating Scientist Program is acknowledged for all the studies.

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Correspondence to J. Grebowsky.

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Grebowsky, J., Fast, K., Talaat, E. et al. Science Enhancements by the MAVEN Participating Scientists. Space Sci Rev 195, 319–355 (2015). https://doi.org/10.1007/s11214-014-0080-4

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Keywords

  • Mars
  • Aeronomy
  • Thermosphere
  • Ionosphere magnetosphere MAVEN mission