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Hyper-velocity impact risk assessment and mitigation strategies in the context of future X-ray astronomy missions

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Abstract

Future X-ray astronomy missions will be based on instruments with apertures much larger than those used up to now. Therefore, the risk posed by hyper-velocity dust grains in the space environment to the onboard instrumentation will increase, especially when a larger aperture is combined with a longer focal length. Starting from the lessons learned from the XMM and Swift satellites, we review the question of hyper-velocity impacts and discuss the expected impact-rate, risk of damage and possible mitigation strategies in the context of LOFT, eROSITA and ATHENA.

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Acknowledgements

The authors acknowledge support for the test campaigns at the dust accelerators from the Bundesministerium für Wirtschaft und Technologie through the Deutsches Zentrum für Luft- und Raumfahrt under grant FKZ 50 OO 1110. The results described in this paper have been reported during the AHEAD background workshop, organised with the support of the EU Horizon 2020 Programme (grant agreement n. 654215)

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Authors and Affiliations

  1. IAAT - Institut für Astronomie und Astrophysik, Universität Tübingen, 72076, Tübingen, Germany

    Emanuele Perinati, Andrea Santangelo & Chris Tenzer

  2. LRT - Lehrstuhl für Raumfahrttechnik, Technische Universität München, 85748, Garching, Germany

    Martin Rott

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  1. Emanuele Perinati
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  2. Martin Rott
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  3. Andrea Santangelo
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  4. Chris Tenzer
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Correspondence to Emanuele Perinati.

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Perinati, E., Rott, M., Santangelo, A. et al. Hyper-velocity impact risk assessment and mitigation strategies in the context of future X-ray astronomy missions. Exp Astron 44, 337–357 (2017). https://doi.org/10.1007/s10686-017-9546-1

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