Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph

Olivier Guyon, Eugene A. Pluzhnik, Stephen Ridgway, Robert A. Woodruff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

The Phase-Induced Amplitude Apodization Coronagraph (PIAAC) uses a lossless beam apodization, performed by aspheric mirrors, to produce a high contrast PSF. This concept offers a unique combination of high throughput (almost 100%), high angular resolution (λ/D), small inner working angle (IWA = 1.5 λ/D), excellent achromaticity (the apodization is performed by geometric reflection on mirrors) and low sensitivity to pointing errors or stellar angular diameter. These characteristics make the PIAAC an ideal choice for direct imaging of extrasolar terrestrial planets (ETPs) from space. We quantify the performance of the PIAAC and other coronagraph designs both in terms of "raw" coronagraphic performance (throughput, IWA etc...) and number of stars around which extrasolar terrestrial planets (ETPs) can be observed. We also identify the fundamental performance limit that can be achieved by coronagraphy, and show that no other coronagraph design is as close to this limit as the PIAAC. We find that in the photon noise limited regime, a 4m telescope with a PIAA coronagraph is able to detect Earth-like planets around 30 stars with Ihr exposure time per target (assuming 25% throughput and exozodi levels similar to our solar system). With a smaller 1 to 2-m diameter telescope, more massive rocky planets could be detected in the habitable zones of a few nearby stars, and an imaging survey of Jupiter-like planets could be performed. Laboratory results and detailed simulations confirm the large potential of this concept for direct imaging of ETPs. A prototype high contrast PIAAC system is currently being operated to demonstrate the coronagraph's performance.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6265 I
DOIs
StatePublished - 2006
Externally publishedYes
EventSpace Telescopes and Instrumentation I: Optical, Infrared, and Millimeter - Orlando, FL, United States
Duration: May 24 2006May 31 2006

Other

OtherSpace Telescopes and Instrumentation I: Optical, Infrared, and Millimeter
CountryUnited States
CityOrlando, FL
Period5/24/065/31/06

Fingerprint

terrestrial planets
coronagraphs
Planets
extrasolar planets
apodization
Imaging techniques
Stars
Throughput
Telescopes
stars
Solar system
telescopes
mirrors
Photons
Earth (planet)
phase contrast
angular resolution
Jupiter (planet)
solar system
planets

Keywords

  • Adaptive Optics
  • Coronagraphy

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Guyon, O., Pluzhnik, E. A., Ridgway, S., & Woodruff, R. A. (2006). Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6265 I). [62651F] https://doi.org/10.1117/12.670638

Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph. / Guyon, Olivier; Pluzhnik, Eugene A.; Ridgway, Stephen; Woodruff, Robert A.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6265 I 2006. 62651F.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Guyon, O, Pluzhnik, EA, Ridgway, S & Woodruff, RA 2006, Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6265 I, 62651F, Space Telescopes and Instrumentation I: Optical, Infrared, and Millimeter, Orlando, FL, United States, 5/24/06. https://doi.org/10.1117/12.670638
Guyon O, Pluzhnik EA, Ridgway S, Woodruff RA. Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6265 I. 2006. 62651F https://doi.org/10.1117/12.670638
Guyon, Olivier ; Pluzhnik, Eugene A. ; Ridgway, Stephen ; Woodruff, Robert A. / Imaging extrasolar terrestrial planets from Space with a PIAA coronagraph. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6265 I 2006.
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