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dc.contributor.authorApai, Dániel
dc.contributor.authorMilster, Tom D.
dc.contributor.authorKim, Dae Wook
dc.contributor.authorBixel, Alex
dc.contributor.authorSchneider, Glenn
dc.contributor.authorLiang, Ronguang
dc.contributor.authorArenberg, Jonathan
dc.date.accessioned2019-09-05T00:45:31Z
dc.date.available2019-09-05T00:45:31Z
dc.date.issued2019-07-29
dc.identifier.citationDániel Apai et al 2019 AJ 158 83en_US
dc.identifier.issn0004-6256
dc.identifier.doi10.3847/1538-3881/ab2631
dc.identifier.urihttp://hdl.handle.net/10150/634070
dc.description.abstractAn outstanding, multidisciplinary goal of modern science is the study of the diversity of potentially Earth-like planets and the search for life in them. This goal requires a bold new generation of space telescopes, but even the most ambitious designs yet hope to characterize several dozen potentially habitable planets. Such a sample may be too small to truly understand the complexity of exo-earths. We describe here a notional concept for a novel space observatory designed to characterize 1000 transiting exo-earth candidates. The Nautilus concept is based on an array of inflatable spacecraft carrying very large diameter (8.5 m), very low weight, multiorder diffractive optical elements (MODE lenses) as light-collecting elements. The mirrors typical to current space telescopes are replaced by MODE lenses with a 10 times lighter areal density that are 100 times less sensitive to misalignments, enabling lightweight structure. MODE lenses can be cost-effectively replicated through molding. The Nautilus mission concept has a potential to greatly reduce fabrication and launch costs and mission risks compared to the current space telescope paradigm through replicated components and identical, lightweight unit telescopes. Nautilus is designed to survey transiting exo-earths for biosignatures up to a distance of 300 pc, enabling a rigorous statistical exploration of the frequency and properties of life-bearing planets and the diversity of exo-earths.en_US
dc.description.sponsorshipGordon and Betty Moore Foundation; NASA's Science Mission Directorateen_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rightsCopyright © 2019. The American Astronomical Society. All rights reserved.en_US
dc.subjectastrobiologyen_US
dc.subjectinstrumentation: miscellaneousen_US
dc.subjectplanets and satellites: atmospheresen_US
dc.subjectplanets and satellites: terrestrial planetsen_US
dc.subjecttelescopesen_US
dc.titleA Thousand Earths: A Very Large Aperture, Ultralight Space Telescope Array for Atmospheric Biosignature Surveysen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Steward Observen_US
dc.contributor.departmentUniv Arizona, Lunar & Planetary Laben_US
dc.contributor.departmentUniv Arizona, James C Wyant Coll Opt Scien_US
dc.contributor.departmentUniv Arizona, Coll Opt Scien_US
dc.identifier.journalASTRONOMICAL JOURNALen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume158
dc.source.issue2
dc.source.beginpage83
refterms.dateFOA2019-09-05T00:45:32Z


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