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The Subaru Coronographic Extreme AO (SCExAO) system: Implementation and performances of the Coronographic Low Order WaveFront Sensor

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dc.contributor.authorVogt, Frédéric P.A.
dc.contributor.authorMartinache, Frantz
dc.contributor.authorGuyon, Olivier
dc.contributor.authorYoshikawa, Takashi
dc.contributor.authorYokochi, Kaito
dc.contributor.authorGarrel, Vincent
dc.contributor.authorMatsuo, Taro
dc.coverage.spatialSan Diego, CA
dc.date.accessioned2022-02-09T01:05:33Z
dc.date.available2022-02-09T01:05:33Z
dc.date.createdJune 27-July 2 2010
dc.date.issued2010
dc.date.updated2020-12-13T07:22:11Z
dc.description.abstractThe Subaru Coronagraphic Extreme AO project (SCExAO) is a high performance coronagraph designed to deliver high contrast at small angular separation. For the detection of structures near the diffraction limit, an accurate control of low order wavefront aberrations - tip-tilt and focus - is essential as these aberrations create light leaks that are the source of confusion in the final science image. To address this major difficulty, we have equipped SCExAO with a specially designed Coronagraphic Low Order WaveFront Sensor (CLOWFS) using defocused images of a reflective ring located in the focal plane, that can track tip-tilt errors as small as 10-3?/D. CLOWFS was originally designed to drive actuators in a closed-loop. Here, we show that it can also be used in post-processing to efficiently subtract the tip-tilt induced coronagraphic leaks in the final science image.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.isbn9780819482266en_AU
dc.identifier.issn0277-786Xen_AU
dc.identifier.urihttp://hdl.handle.net/1885/259907
dc.language.isoen_AUen_AU
dc.provenancettps://v2.sherpa.ac.uk/id/publication/27454..."The Published Version can be archived in a Non-Commercial Institutional Repository" from SHERPA/RoMEO site (as at 09/02/2022). Copyright 2010 Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. Hinz, P. M., Bouchez, A., Johns, M., Shectman, S., Hart, M., McLeod, B., & McGregor, P. (2010, July). The GMT adaptive optics system. In Adaptive Optics Systems II (Vol. 7736, pp. 139-150). SPIE.en_AU
dc.publisherSPIE - The International Society for Optical Engineeringen_AU
dc.relation.ispartofseriesAdaptive Optics Systems IIen_AU
dc.rights© 2010 SPIEen_AU
dc.sourceProceedings of SPIE - The International Society for Optical Engineeringen_AU
dc.subjectCLOWFSen_AU
dc.subjectCoronographyen_AU
dc.subjectExtra solar planetsen_AU
dc.subjectPIAAen_AU
dc.subjectSCExAOen_AU
dc.subjectSubaru telescopesen_AU
dc.subjectAdaptive opticsen_AU
dc.subjectOptical telescopesen_AU
dc.subjectSensorsen_AU
dc.subjectWavefrontsen_AU
dc.subjectPlanets Adaptive opticsen_AU
dc.subjectCLOWFSen_AU
dc.subjectCoronographyen_AU
dc.subjectExtrasolar planetsen_AU
dc.subjectPIAAen_AU
dc.subjectSCExAOen_AU
dc.subjectSubaru telescopeen_AU
dc.titleThe Subaru Coronographic Extreme AO (SCExAO) system: Implementation and performances of the Coronographic Low Order WaveFront Sensoren_AU
dc.typeConference paperen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.lastpage773612-9en_AU
local.bibliographicCitation.startpage773612-1en_AU
local.contributor.affiliationVogt, Frederic, College of Science, ANUen_AU
local.contributor.affiliationMartinache, Frantz, National Astronomical Observatory of Japanen_AU
local.contributor.affiliationGuyon, Olivier, National Astronomical Observatory of Japanen_AU
local.contributor.affiliationYoshikawa, Takashi, National Astronomical Observatory of Japanen_AU
local.contributor.affiliationYokochi, Kaito, National Astronomical Observatory of Japanen_AU
local.contributor.affiliationGarrel, Vincent, National Astronomical Observatory of Japanen_AU
local.contributor.affiliationMatsuo, Taro, National Astronomical Observatory of Japanen_AU
local.contributor.authoruidVogt, Frederic, u4873788en_AU
local.description.notesImported from ARIESen_AU
local.description.refereedYes
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systemsen_AU
local.identifier.ariespublicationU3488905xPUB19101en_AU
local.identifier.citationvolume7736en_AU
local.identifier.doi10.1117/12.857915en_AU
local.identifier.essn1996-756Xen_AU
local.identifier.scopusID2-s2.0-77957841710
local.identifier.thomsonID000285506400035
local.publisher.urlhttp://spie.orgen_AU
local.type.statusPublished Versionen_AU

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