Technology requirements and development path for coronagraphic planet detection

Roger P. Linfield

doi:10.1117/12.459825

24 February 2003 Technology requirements and development path for coronagraphic planet detection

Roger P. Linfield

Proceedings Volume 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation; (2003) https://doi.org/10.1117/12.459825
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

Visible light coronagraphy from space is a promising technique for extrasolar planet detection and characterization. However, technology development in several areas is needed before a search for terrestrial planets is feasible with a coronagraph. The most challenging technologies appear to be: construction of 10 m scale, precision lightweight optics; millikelvin level control of temperature changes; and achieving reflectivity uniformity of 10^-4 across all mirrors. Additional technical challenges include: wavefront sensing to the sub-angstrom level; precise, stable deformable mirrors; and construction of coronagraphic masks with accurate shape or transmission profile. The current status and suggested development path of these technologies will be discussed.

Citation Download Citation

Roger P. Linfield "Technology requirements and development path for coronagraphic planet detection", Proc. SPIE 4854, Future EUV/UV and Visible Space Astrophysics Missions and Instrumentation, (24 February 2003); https://doi.org/10.1117/12.459825

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