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Preprint Aug 2026

X-ray grating spectroscopy as a mission enhancement

We propose to add instruments to any potential future X-ray mission with focussing optics that is considered in NASA's ASTRA framework. Such an instrument is a necessity to study AGN wind outflows and feedback, find the missing baryons, study the intergalactic medium, and analyze abundances and chemical bonds in dust g...

Hans Moritz Guenther, E. Behar, Joel N. Bregman et al. · 0 citations
Open access Aug 2026

In-flight measurements of the optical axis and stray light of x-ray mirror assembly (XMA) on XRISM

The X-ray Mirror Assemblies (XMAs) on board the X-ray Imaging and Spectroscopy Mission (XRISM) underwent dedicated in-flight calibration during the early phase of the mission to ensure high-precision imaging and spectroscopic performance. This paper presents the in-flight determination of the Xtend-XMA optical axis and...

T. Hayashi, R. Boissay-Malaquin, Keisuke Tamura et al. · 0 citations

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