The case for spectropolarimetry with SPEX on EJSM

Abstract

We present SPEX, our Spectropolarimeter for Planetary EXploration, and its application as science payload for EJSM. SPEX’ novel spectropolarimetry method allows to simultaneously measure radiance spectra (with a resolution of 2 nm) and polarization spectra (with a resolution of 20 nm) from 0.4 to 0.8 μm. Thanks to this novel method, SPEX is small and robust.