14 July 2008 ACCESS: a NASA mission concept study of an Actively Corrected Coronagraph for Exoplanet System Studies
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ACCESS (Actively-Corrected Coronagraph for Exoplanet System Studies) develops the science and engineering case for an investigation of exosolar giant planets, super-earths, exo-earths, and dust/debris fields that would be accessible to a medium-scale NASA mission. The study begins with the observation that coronagraph architectures of all types (other than the external occulter) call for an exceptionally stable telescope and spacecraft, as well as active wavefront correction with one or more deformable mirrors (DMs). During the study, the Lyot, shaped pupil, PIAA, and a number of other coronagraph architectures will all be evaluated on a level playing field that considers science capability (including contrast at the inner working angle (IWA), throughput efficiency, and spectral bandwidth), engineering readiness (including maturity of technology, instrument complexity, and sensitivity to wavefront errors), and mission cost so that a preferred coronagraph architecture can be selected and developed for a medium-class mission.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
John Trauger, Karl Stapelfeldt, Wesley Traub, Curt Henry, John Krist, Dimitri Mawet, Dwight Moody, Peggy Park, Laurent Pueyo, Eugene Serabyn, Stuart Shaklan, Olivier Guyon, Jeremy Kasdin, David Spergel, Robert Vanderbei, Ruslan Belikov, Geoffrey Marcy, Robert A. Brown, Jean Schneider, Bruce Woodgate, Gary Matthews, Robert Egerman, Ronald Polidan, Charles Lillie, Mark Ealey, Thomas Price, "ACCESS: a NASA mission concept study of an Actively Corrected Coronagraph for Exoplanet System Studies", Proc. SPIE 7010, Space Telescopes and Instrumentation 2008: Optical, Infrared, and Millimeter, 701029 (14 July 2008); doi: 10.1117/12.789119; https://doi.org/10.1117/12.789119


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