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Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission.

D J McComas1, E R Christian2, N A Schwadron3

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Summary
This summary is machine-generated.

NASA's Interstellar Mapping and Acceleration Probe (IMAP) mission offers new insights into charged particle acceleration and solar wind interactions with the local interstellar medium. These observations are crucial for understanding space weather and the heliosphere.

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ENAsEnergetic particlesHeliosphereIBEXIMAPInterstellar mediumMagnetic fieldsPlasmaSolar windSpace weather

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Area of Science:

  • Heliophysics
  • Space Physics
  • Astrophysics

Background:

  • The heliosphere's dynamics are governed by charged particle acceleration and solar wind interaction with the local interstellar medium.
  • Understanding these processes is key to advancing space weather prediction and fundamental plasma physics.

Purpose of the Study:

  • To provide comprehensive observations of the inner and outer heliosphere using NASA's Interstellar Mapping and Acceleration Probe (IMAP) mission.
  • To investigate the acceleration of charged particles and the interaction between the solar wind and the very local interstellar medium (VLISM).
  • To deliver real-time data critical for space weather forecasting and scientific closure on key heliophysics topics.

Main Methods:

  • Utilizing ten synergistic instruments on a spinning spacecraft orbiting the Sun-Earth L1 point.
  • Conducting in-situ measurements of solar wind electrons, ions, energetic particles, and magnetic fields at 1 AU.
  • Performing global imaging of the outer heliosphere using Energetic Neutral Atoms (ENAs) and observing interstellar neutral atoms and dust.

Main Results:

  • IMAP's instruments provide coordinated observations of particle energization and heliospheric interactions.
  • Measurements cover a wide range of particle energies, from solar wind to suprathermal and energetic ions.
  • Global ENA imaging offers new perspectives on the outer heliosphere's structure and dynamics.

Conclusions:

  • The IMAP mission is poised to significantly advance our understanding of particle acceleration and heliospheric-interstellar interactions.
  • IMAP's comprehensive data will enhance space weather models and provide critical insights into the heliosphere's response to the local interstellar environment.
  • This mission serves as a foundational reference for future heliophysics research.