Physics – Optics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010lyot.confe..49s&link_type=abstract
Proceedings of the conference In the Spirit of Lyot 2010: Direct Detection of Exoplanets and Circumstellar Disks. October 25 -
Physics
Optics
Scientific paper
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 3.8um. Contrast of 1e4 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 2 Jupiter masses 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.
Beaulieu Mathilde
Beichman Charles Arnold
Doyon Rene
Ireland Michael J.
Lafreniere David
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