Direct Samples of Interstellar and Interplanetary Material with IMAP

Area of Science:

• * Heliophysics
• * Space Physics
• * Astrochemistry

Background:

• * The heliosphere shields Earth from the interstellar medium (ISM).
• * Understanding ISM-heliosphere interaction is crucial for space weather.
• * Previous missions have provided limited direct sampling of the ISM.

Purpose of the Study:

• * To detail the scientific goals for the IMAP mission's theme on sampling interstellar and interplanetary material.
• * To identify key scientific opportunities for IMAP at 1 astronomical unit (au).
• * To address critical questions about the local interstellar medium (LISM) and its interaction with the heliosphere.

Main Methods:

• * Direct sampling of interstellar and interplanetary material by the IMAP spacecraft.
• * In-situ measurements of dust and gas composition.
• * Analysis of energetic neutral atoms to probe the outer heliosphere.

Main Results:

• * IMAP's unique position at 1 au enables unprecedented direct sampling.
• * The mission will address the state and evolution of the upstream LISM.
• * It will investigate the interaction between the very local interstellar medium (VLISM) and the heliosphere.
• * The impact of interstellar material and dust on the near-Sun environment will be assessed.

Conclusions:

• * IMAP will provide crucial data on the composition and properties of the ISM.
• * The mission will enhance our understanding of heliospheric processes and space weather.
• * Findings will illuminate the origins and evolution of interstellar material.