Computer Science – Performance
Scientific paper
Jun 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confe..35r&link_type=abstract
Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s
Computer Science
Performance
Scientific paper
One of the objectives of the James Webb Space Telescope (former NGST) is the understanding of the formation of stars planetary systems. JWST will include four instruments, one of which is MIRI, a mid-IR camera / spectrometer. The instrument is particularly well suited to the direct detection of extrasolar planets because of the favourable star/planet contrast in this spectral ranges, the image quality and because it features a set of coronagraphs based on the four-quadrant phase mask design. Our group at Observatoire de Paris-Meudon was responsible for this sub-system and I present the basic principles, the final design, the various technology paths followed for the phase-mask manufacturing, the lab experiment to qualify the coronagraphs and finally the expected performances and the observational strategy. I'll discuss the expectations in terms of giant planet detection and characterization, using the set of dedicated filters / 4QPM-coronagraphs.
Baudoz Pi.
Baudrand Jacques
Boccaletti Anthony
Cavarroc Céline
Reess Jean-Michel
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