Share Email Print
cover

Proceedings Paper

Extreme adaptive optics planet imager: XAOPI
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Ground based adaptive optics is a potentially powerful technique for direct imaging detection of extrasolar planets. Turbulence in the Earth's atmosphere imposes some fundamental limits, but the large size of ground-based telescopes compared to spacecraft can work to mitigate this. We are carrying out a design study for a dedicated ultra-high-contrast system, the eXtreme Adaptive Optics Planet Imager (XAOPI), which could be deployed on an 8-10m telescope in 2007. With a 4096-actuator MEMS deformable mirror it should achieve Strehl >0.9 in the near-IR. Using an innovative spatially filtered wavefront sensor, the system will be optimized to control scattered light over a large radius and suppress artifacts caused by static errors. We predict that it will achieve contrast levels of 107-108 at angular separations of 0.2-0.8" around a large sample of stars (R<7-10), sufficient to detect Jupiter-like planets through their near-IR emission over a wide range of ages and masses. We are constructing a high-contrast AO testbed to verify key concepts of our system, and present preliminary results here, showing an RMS wavefront error of <1.3 nm with a flat mirror.

Paper Details

Date Published: 19 November 2003
PDF: 11 pages
Proc. SPIE 5170, Techniques and Instrumentation for Detection of Exoplanets, (19 November 2003); doi: 10.1117/12.506836
Show Author Affiliations
Bruce A. Macintosh, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
James Graham, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Berkeley (United States)
Lisa Poyneer, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Gary Sommargren, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Julia Wilhelmsen, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Don Gavel, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Santa Cruz (United States)
Steve Jones, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Paul Kalas, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Berkeley (United States)
James P. Lloyd, NSF Ctr. for Adaptive Optics (United States)
California Institute of Technology (United States)
Russ Makidon, NSF Ctr. for Adaptive Optics (United States)
Space Telescope Science Institute (United States)
Scot Olivier, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Dave Palmer, NSF Ctr. for Adaptive Optics (United States)
Lawrence Livermore National Lab. (United States)
Jennifer Patience, NSF Ctr. for Adaptive Optics (United States)
California Institute of Technology (United States)
Marshall Perrin, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Berkeley (United States)
Scott Severson, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Santa Cruz (United States)
Andrew Sheinis, NSF Ctr. for Adaptive Optics (United States)
Univ. of California/Santa Cruz (United States)
Anand Sivaramakrishnan, NSF Ctr. for Adaptive Optics (United States)
Space Telescope Science Institute (United States)
Mitch Troy, NSF Ctr. for Adaptive Optics (United States)
Jet Propulsion Lab. (United States)
J. Kent Wallace, NSF Ctr. for Adaptive Optics (United States)
Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 5170:
Techniques and Instrumentation for Detection of Exoplanets
Daniel R. Coulter, Editor(s)

© SPIE. Terms of Use
Back to Top