High-contrast Imaging with "Extreme" AO and A Band-limited Mask

Details High-contrast Imaging with "Extreme" AO and A Band-limited Mask High-contrast Imaging with "Extreme" AO and A Band-limited Mask

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007dps....39.2204c&link_type=abstract

American Astronomical Society, DPS meeting #39, #22.04; Bulletin of the American Astronomical Society, Vol. 39, p.451

Physics

Optics

Scientific paper

We have built a band-limited image mask for the PHARO near-IR instrument at Palomar. This coronagraph, which is one of the front-running TPF-C design candidates, is coupled to off-axis relay optics that generate Strehl ratios approaching 0.94 in the K-band using the existing deformable mirror. We present here preliminary lab and on-sky results. We also outline the unique capabilities that this architecture offers -- in particular, high-contrast imaging of visual binaries and giant stars -- and our plans for the coming year.

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