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Interstellar Mapping and Acceleration Probe (IMAP): A New NASA Mission |
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| Authors: | D J McComas E R Christian N A Schwadron N Fox J Westlake F Allegrini D N Baker D Biesecker M Bzowski G Clark C M S Cohen I Cohen M A Dayeh R Decker G A de Nolfo M I Desai R W Ebert H A Elliott H Fahr P C Frisch H O Funsten S A Fuselier A Galli A B Galvin J Giacalone M Gkioulidou F Guo M Horanyi P Isenberg P Janzen L M Kistler K Korreck M A Kubiak H Kucharek B A Larsen R A Leske N Lugaz J Luhmann W Matthaeus D Mitchell E Moebius K Ogasawara D B Reisenfeld J D Richardson C T Russell J M Sokó? H E Spence R Skoug Z Sternovsky P Swaczyna J R Szalay M Tokumaru M E Wiedenbeck P Wurz G P Zank E J Zirnstein |
| Institution: | 1.Department of Astrophysical Sciences,Princeton University,Princeton,USA;2.Heliophysics Science Division,NASA Goddard Space Flight Center,Greenbelt,USA;3.Space Science Center,University of New Hampshire,Durham,USA;4.Johns Hopkins University Applied Physics Laboratory,Laurel,USA;5.Southwest Research Institute,San Antonio,USA;6.Department of Physics and Astronomy,University of Texas at San Antonio,San Antonio,USA;7.Laboratory for Atmospheric and Space Physics,University of Colorado Boulder,Boulder,USA;8.Space Weather Prediction Center,National Oceanic and Atmospheric Administration,Boulder,USA;9.Space Research Centre,Polish Academy of Sciences (CBK PAN),Warsaw,Poland;10.California Institute of Technology,Pasadena,USA;11.Argelander Institut für Astronomie,Universit?t Bonn,Bonn,Germany;12.Department of Astronomy and Astrophysics,University of Chicago,Chicago,USA;13.Los Alamos National Laboratory,Los Alamos,USA;14.Physics Institute,University of Bern,Bern,Switzerland;15.Department of Planetary Sciences,University of Arizona,Tucson,USA;16.Department of Physics and Astronomy,University of Montana,Missoula,USA;17.Smithsonian Astrophysical Observatory,Harvard-Smithsonian Center for Astrophysics,Cambridge,USA;18.Space Sciences Laboratory,University of California,Berkeley,USA;19.Department of Physics and Astronomy,University of Delaware,Newark,USA;20.Kavli Center for Astrophysics and Space Science,Massachusetts Institute of Technology,Cambridge,USA;21.Department of Earth, Planetary, and Space Sciences,University of California,Los Angeles,USA;22.Institute for Space-Earth Environmental Research,Nagoya University,Nagoya,Japan;23.Jet Propulsion Laboratory,California Institute of Technology,Pasadena,USA;24.Department of Space Science,University of Alabama in Huntsville,Huntsville,USA;25.Center for Space Plasma and Aeronomic Research (CSPAR),University of Alabama in Huntsville,Huntsville,USA |
| Abstract: | The Interstellar Mapping and Acceleration Probe (IMAP) is a revolutionary mission that simultaneously investigates two of the most important overarching issues in Heliophysics today: the acceleration of energetic particles and interaction of the solar wind with the local interstellar medium. While seemingly disparate, these are intimately coupled because particles accelerated in the inner heliosphere play critical roles in the outer heliospheric interaction. Selected by NASA in 2018, IMAP is planned to launch in 2024. The IMAP spacecraft is a simple sun-pointed spinner in orbit about the Sun-Earth L1 point. IMAP’s ten instruments provide a complete and synergistic set of observations to simultaneously dissect the particle injection and acceleration processes at 1 AU while remotely probing the global heliospheric interaction and its response to particle populations generated by these processes. In situ at 1 AU, IMAP provides detailed observations of solar wind electrons and ions; suprathermal, pickup, and energetic ions; and the interplanetary magnetic field. For the outer heliosphere interaction, IMAP provides advanced global observations of the remote plasma and energetic ions over a broad energy range via energetic neutral atom imaging, and precise observations of interstellar neutral atoms penetrating the heliosphere. Complementary observations of interstellar dust and the ultraviolet glow of interstellar neutrals further deepen the physical understanding from IMAP. IMAP also continuously broadcasts vital real-time space weather observations. Finally, IMAP engages the broader Heliophysics community through a variety of innovative opportunities. This paper summarizes the IMAP mission at the start of Phase A development. |
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