Factors affecting the performance of an ultrastable telescope: turning over all the rocks

Jonathan W. Arenberg

doi:10.1117/12.2531138

30 October 2019 Factors affecting the performance of an ultrastable telescope: turning over all the rocks

Jonathan W. Arenberg

Proceedings Volume 11115, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX; 111151B (2019) https://doi.org/10.1117/12.2531138
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

Future observatories capable of detecting Earth-like planets around other stars will have to be large and exquisitely stable, a so-called ultra-stable system (USS). The stability requirements for a USS are orders of magnitude greater stability than current systems. The analysis, design and verification of these systems will require detailed knowledge of all the factors that affect its performance. At performance levels measured in picometers, forces and effects that are negligible for current systems can become important actors. To assure there are no bad actors waiting in the wings to spoil the performance of a future ultra-stable system, a systematic and comprehensive study has been carried out to assess the impact to system performance for many of these small and typically ignored effects. The work presented includes the effects of system self-interactions and system interaction with the environment and the impact of both on the stability of the figure in a spatial and temporal sense.

Citation Download Citation

Jonathan W. Arenberg "Factors affecting the performance of an ultrastable telescope: turning over all the rocks", Proc. SPIE 11115, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts IX, 111151B (30 October 2019); https://doi.org/10.1117/12.2531138

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Mirrors

Telescopes

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Aerospace engineering

James Webb Space Telescope

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