Adaptive optics for extremely large telescopes

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Proceedings titleScientific Requirements for Extremely Large Telescopes
Series titleProceedings of the International Astronomical Union; Volume 1
ConferenceThe Scientific Requirements for Extremely Large Telescopes, 232nd Symposium of the International Astronomical Union, November 14-18, 2005, Cape Town, South Africa
Pages6085; # of pages: 26
SubjectAdaptive optics; high angular resolution
AbstractAdaptive Optics (AO) will be essential for accomplishing many, if not most, of the science objectives currently planned for Extremely Large Telescopes including GMT, OWL, and TMT. AO will be needed to support a range of instrumentation, including near infrared (IR) imagers and spectrometers, mid IR imagers and spectrometers, “planet finding” instrumentation and wide-field optical spectrographs. Multiple advanced AO systems, utilizing the full range of concepts currently under development, will need to be combined into an integrated architecture to meet a broad range of requirements for field-of-view, spatial resolution and spectral bandpass. In this paper, we describe several of the possible options for these systems and outline the range of issues, trade studies and component development activities which must be addressed. Some of these challenges include very high-order, large-stroke wavefront correction, tip-tilt sensing with faint natural guide stars to maximize sky coverage, laser guide star wavefront sensing on a very large aperture and achieving extremely high contrast ratios for the detection of extra-solar planet and other faint companions of nearby bright stars.
Publication date
PublisherCambridge University Press
International Astronomical Union
AffiliationNRC Herzberg Institute of Astrophysics; National Research Council Canada; NRC Herzberg Astronomy and Astrophysics
Peer reviewedYes
NPARC number13052534
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Record identifierbf3f2d56-eb24-4b53-98c9-f88a278c7fd2
Record created2009-11-25
Record modified2017-06-27
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