EXPO: a quantum leap in fast, wide-band x-ray polarimetry for astrophysics (Erratum)

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Abstract
This paper, originally published on 17 August 2026, was replaced with a revised version on 6 October 2026. Figure 11 has been added to provide a comparison between the sensitivity of the mission EXPO and other proposed or flying missions. If you downloaded the original PDF but are unable to access the revision, please contact SPIE Digital Library Customer Service for assistance. Download the erratum for additional details.