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Proceedings Article

Planetary system and star formation science with non-redundant masking on JWST

[+] Author Affiliations
Anand Sivaramakrishnan

American Museum of Natural History (USA)

Peter G. Tuthill, Michael J. Ireland

The Univ. of Sydney (Australia)

James P. Lloyd

Cornell Univ. (USA)

Frantz Martinache

National Astronomical Observatory of Japan/Subaru Telescope (USA)

Rémi Soummer, Russell B. Makidon

Space Telescope Science Institute (USA)

René Doyon, Mathilde Beaulieu

Univ. de Montréal (Canada)

Charles A. Beichman

NASA ExoPlanet Science Institute, California Institute of Technology (USA)

Proc. SPIE 7440, Techniques and Instrumentation for Detection of Exoplanets IV, 74400Y (August 19, 2009); doi:10.1117/12.826633
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From Conference Volume 7440

  • Techniques and Instrumentation for Detection of Exoplanets IV
  • Stuart B. Shaklan
  • San Diego, CA | August 02, 2009

abstract

Non-redundant masking (NRM) is a high contrast high resolution technique that is relevant for future space missions dedicated to either general astrophysics or extrasolar planetary astronomy. NRM mitigates not only atmospheric but instrument-induced speckle noise as well. The recently added mask in the Fine Guidance Sensor Tunable Filter Imager (FGS-TFI) on the James Webb Space Telescope (JWST) will open up a search space between 50 and 400 mas at wavelengths longer than 3.8μm. Contrast of 104 will be achievable in a 10 ks exposure of an M = 7 star, with routine observing, target acquisition, and data calibration methods. NRM places protoplanets in Taurus as well as Jovians younger than 300Myr and more massive than 2MJ orbiting solar type stars within JWST's reach. Stars as bright as M = 3 will also be observable, thus meshing well with next-generation ground-based extreme adaptive optics coronagraphs. This parameter space is inaccessible to both JWST coronagraphs and future 30-m class ground-based telescopes, especially in the mid-IR. We show that NRM used on future space telescopes can deliver unsurpassed image contrast in key niches, while reducing mission risk associated with active primary mirrors.

© (2009) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Anand Sivaramakrishnan ; Peter G. Tuthill ; Michael J. Ireland ; James P. Lloyd ; Frantz Martinache, et al.
"Planetary system and star formation science with non-redundant masking on JWST", Proc. SPIE 7440, Techniques and Instrumentation for Detection of Exoplanets IV, 74400Y (August 19, 2009); doi:10.1117/12.826633; http://dx.doi.org/10.1117/12.826633


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