20 December 2001 X-ray interferometry: ultra-high-resolution astronomy
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X-rays have tremendous potential for imaging at the highest angular resolution. The high surface brightness of many x-ray sources will reveal angular scales heretofore thought unreachable. The short wavelengths make instrumentation compact and baselines short. We discuss how practical x-ray interferometers can be built for astronomy using existing technology. We describe the Maxim Pathfinder and Maxim missions which will achieve 100 and 0.1 micro-arcsecond imaging respectively. The science to be tackled with resolution of up to one million times that of HST will be outlined, with emphasis on eventually imaging the event horizon of a black hole.
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Webster C. Cash, Ann F. Shipley, Randall Lee McEntaffer, "X-ray interferometry: ultra-high-resolution astronomy", Proc. SPIE 4506, Soft X-Ray and EUV Imaging Systems II, (20 December 2001); doi: 10.1117/12.450952; https://doi.org/10.1117/12.450952

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