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dc.contributor.authorMadurowicz, Alexander
dc.contributor.authorMacintosh, Bruce
dc.contributor.authorChilcote, Jeffrey
dc.contributor.authorPerrin, Marshall
dc.contributor.authorPoyneer, Lisa
dc.contributor.authorPueyo, Laurent
dc.contributor.authorRuffio, Jean-Baptiste
dc.contributor.authorBailey, Vanessa P.
dc.contributor.authorBarman, Travis
dc.contributor.authorBulger, Joanna
dc.contributor.authorCotten, Tara
dc.contributor.authorDe Rosa, Robert J.
dc.contributor.authorDoyon, Rene
dc.contributor.authorDuchêne, Gaspard
dc.contributor.authorEsposito, Thomas M.
dc.contributor.authorFitzgerald, Michael P.
dc.contributor.authorFollette, Katherine B.
dc.contributor.authorGerard, Benjamin L.
dc.contributor.authorGoodsell, Stephen J.
dc.contributor.authorGraham, James R.
dc.contributor.authorGreenbaum, Alexandra Z.
dc.contributor.authorHibon, Pascale
dc.contributor.authorHung, Li-Wei
dc.contributor.authorIngraham, Patrick
dc.contributor.authorKalas, Paul
dc.contributor.authorKonopacky, Quinn
dc.contributor.authorMaire, Jérôme
dc.contributor.authorMarchis, Franck
dc.contributor.authorMarley, Mark S.
dc.contributor.authorMarois, Christian
dc.contributor.authorMetchev, Stanimir
dc.contributor.authorMillar-Blanchaer, Maxwell A.
dc.contributor.authorNielsen, Eric L.
dc.contributor.authorOppenheimer, Rebecca
dc.contributor.authorPalmer, David
dc.contributor.authorPatience, Jennifer
dc.contributor.authorRajan, Abhijith
dc.contributor.authorRameau, Julien
dc.contributor.authorRantakyrö, Fredrik T.
dc.contributor.authorSavransky, Dmitry
dc.contributor.authorSivaramakrishnan, Anand
dc.contributor.authorSong, Inseok
dc.contributor.authorSoummer, Remi
dc.contributor.authorTallis, Melissa
dc.contributor.authorThomas, Sandrine
dc.contributor.authorWang, Jason J.
dc.contributor.authorWard-Duong, Kimberly
dc.contributor.authorWolff, Schuyler
dc.date.accessioned2020-06-27T00:23:06Z
dc.date.available2020-06-27T00:23:06Z
dc.date.issued2019-10-25
dc.identifier.citationMadurowicz, A., Macintosh, B., Chilcote, J., Perrin, M., Poyneer, L., Pueyo, L., ... & Wolff, S. (2019). Asymmetries in adaptive optics point spread functions. Journal of Astronomical Telescopes, Instruments, and Systems, 5(4), 049003.en_US
dc.identifier.issn2329-4124
dc.identifier.doi10.1117/1.jatis.5.4.049003
dc.identifier.urihttp://hdl.handle.net/10150/641762
dc.description.abstractAn explanation for the origin of asymmetry along the preferential axis of the point spread function (PSF) of an AO system is developed. When phase errors from high-altitude turbulence scintillate due to Fresnel propagation, wavefront amplitude errors may be spatially offset from residual phase errors. These correlated errors appear as asymmetry in the image plane under the Fraunhofer condition. In an analytic model with an open-loop AO system, the strength of the asymmetry is calculated for a single mode of phase aberration, which generalizes to two dimensions under a Fourier decomposition of the complex illumination. Other parameters included are the spatial offset of the AO correction, which is the wind velocity in the frozen flow regime multiplied by the effective AO time delay and propagation distance or altitude of the turbulent layer. In this model, the asymmetry is strongest when the wind is slow and nearest to the coronagraphic mask when the turbulent layer is far away, such as when the telescope is pointing low toward the horizon. A great emphasis is made about the fact that the brighter asymmetric lobe of the PSF points in the opposite direction as the wind, which is consistent analytically with the clarification that the image plane electric field distribution is actually the inverse Fourier transform of the aperture plane. Validation of this understanding is made with observations taken from the Gemini Planet Imager, as well as being reproducible in end-to-end AO simulations. (C) The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License.en_US
dc.language.isoenen_US
dc.publisherSPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERSen_US
dc.rightsCopyright © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectadaptive opticsen_US
dc.subjectpoint-spread functionsen_US
dc.subjectscintillationen_US
dc.subjectFresnel propagationen_US
dc.titleAsymmetries in adaptive optics point spread functionsen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Lunar & Planetary Laben_US
dc.identifier.journalJOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMSen_US
dc.description.noteOpen access articleen_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.journaltitleJournal of Astronomical Telescopes, Instruments, and Systems
dc.source.volume5
dc.source.issue04
dc.source.beginpage1
refterms.dateFOA2020-06-27T00:23:08Z


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Copyright © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
Except where otherwise noted, this item's license is described as Copyright © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.