Publication:
LAPCAT: The Large Antarctic Plateau Clear-Aperture Telescope
LAPCAT: The Large Antarctic Plateau Clear-Aperture Telescope
dc.contributor.author | Storey, John | en_US |
dc.contributor.author | Lawrence, Jonathan | en_US |
dc.contributor.author | Ashley, Michael | en_US |
dc.contributor.author | Burton, Michael | en_US |
dc.contributor.author | Angel, Roger | en_US |
dc.contributor.author | Hinz, Phil | en_US |
dc.date.accessioned | 2021-11-25T12:54:41Z | |
dc.date.available | 2021-11-25T12:54:41Z | |
dc.date.issued | 2006 | en_US |
dc.description.abstract | We present a proposal for an 8.4 metre off-axis optical/IR telescope to be located at Dome C, Antarctica. LAPCAT will use a mirror identical to the offset segment recently cast for the Giant Magellan Telescope (GMT) as a completely unobscured f/2.1 primary. With a cooled deformable Gregorian secondary in a dewar following prime focus, LAPCAT will allow for diffraction-limited imaging with only a single reflecting surface at [similar to] 220K, and thus the lowest possible thermal background obtainable on earth. The exceptionally low atmospheric turbulence above Dome C enables very high contrast imaging in the thermal infrared, and diffraction limited imaging extending to optical wavelengths (20 mas at 800 nm, where Strehl ratios > 60% are projected). As an example, a deep 5 ?m exoplanet imaging survey to complement current radial velocity methods could take advantage of both the low background and pupil remapping methods for apodization enabled by the clear aperture. Many new, young, giant planets ( greater than or equal 3Mj at 1 Gyr) would be detected in orbits greater than or equal 5 AU out to 20 pc. By providing a test bed for many of the GMT technologies in an Antarctic environment, LAPCAT also paves the way for the eventual construction of a second GMT at Dome C. Such a telescope would have unparalleled capabilities compared both to other ELTs in temperate sites and to JWST. | en_US |
dc.description.uri | http://spie.org/x3111.xml | en_US |
dc.identifier.uri | http://hdl.handle.net/1959.4/38528 | |
dc.language | English | |
dc.language.iso | EN | en_US |
dc.publisher | SPIE | en_US |
dc.rights | CC BY-NC-ND 3.0 | en_US |
dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/3.0/au/ | en_US |
dc.source | Legacy MARC | en_US |
dc.subject.other | Optical telescopes | en_US |
dc.subject.other | Infrared radiation | en_US |
dc.subject.other | Diffraction | en_US |
dc.subject.other | Reflection | en_US |
dc.subject.other | Atmospheric turbulence | en_US |
dc.subject.other | Velocity measurement | en_US |
dc.subject.other | Adaptive optics | en_US |
dc.title | LAPCAT: The Large Antarctic Plateau Clear-Aperture Telescope | en_US |
dc.type | Conference Paper | en |
dcterms.accessRights | open access | |
dspace.entity.type | Publication | en_US |
unsw.accessRights.uri | https://purl.org/coar/access_right/c_abf2 | |
unsw.description.publisherStatement | © 2006 COPYRIGHT SPIE--The International Society for Optical Engineering. This paper was published in Proc. SPIE, Vol. 6267 and is made available as an electronic preprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. | en_US |
unsw.identifier.doi | https://doi.org/10.26190/unsworks/392 | |
unsw.relation.faculty | Science | |
unsw.relation.ispartofconferenceLocation | Orlando, Florida | en_US |
unsw.relation.ispartofconferenceName | SPIE Astronomical telescopes and Instrumentation 2006 | en_US |
unsw.relation.ispartofconferenceProceedingsTitle | Proc. SPIE, Vol. 6267 | en_US |
unsw.relation.ispartofconferenceYear | 2006 | en_US |
unsw.relation.originalPublicationAffiliation | Storey, John, Physics, Faculty of Science, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Lawrence, Jonathan, Physics, Faculty of Science, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Ashley, Michael, Physics, Faculty of Science, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Burton, Michael, Physics, Faculty of Science, UNSW | en_US |
unsw.relation.originalPublicationAffiliation | Angel, Roger, Steward Observatory, University of Arizona, Tucson, Arizona 85721, USA | en_US |
unsw.relation.originalPublicationAffiliation | Hinz, Phil, Steward Observatory, University of Arizona, Tucson, Arizona 85721, USA | en_US |
unsw.relation.school | School of Physics | * |
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