10 May 2011 Compact optics for high resolution spectroscopy of celestial x-ray sources
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Abstract
The astronomy community has never flown a celestial source spectrograph that can resolve natural line widths in absorption the way the ultraviolet community since OAO-3 Copernicus in 1972. Yet there is important science to be mined there, and right now there are now missions on track to pursue it. We present a modified off-plane grating spectrograph design that will support high resolution (λ/δλ ~ 4000) in the soft x-ray band with a high packing density that will enable a modest cost space mission. We discuss the design for the WHIMEx mission which was proposed as an Explorer earlier this year with the goal of detecting high temperature oxygen in the Intergalactic Medium.
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W. Cash, W. Cash, C. Lillie, C. Lillie, R. McEntaffer, R. McEntaffer, W. Zhang, W. Zhang, } "Compact optics for high resolution spectroscopy of celestial x-ray sources", Proc. SPIE 8076, EUV and X-Ray Optics: Synergy between Laboratory and Space II, 807603 (10 May 2011); doi: 10.1117/12.887092; https://doi.org/10.1117/12.887092
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