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The Chromospheric Magnetism Explorer (CMEx)

Presentation #304.01 in the session From Filaments to Flares.

Published onSep 18, 2023
The Chromospheric Magnetism Explorer (CMEx)

We discuss a new mission that uses ultraviolet spectropolarimetry to diagnose magnetism from the solar photosphere to the transition region. CMEx explores how the magnetic field evolves from the β ≫ 1 photosphere to the β ≪ 1 corona to form twisted non-potential flux ropes in the corona that are the energy storage devices for magnetic eruptions. This key β transition happens in the chromosphere where UV spectropolarimetry can give us the best access to the highly complex dynamics where plasma properties change rapidly.

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