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dc.contributor.authorPérez Cagigal, Manuel 
dc.contributor.authorValle Herrero, Pedro José 
dc.contributor.authorColodro Conde, Carlos 
dc.contributor.authorVillo Pérez, Isidro 
dc.contributor.authorPérez Garrido, Antonio 
dc.coverage.spatialeast=-2.546757399999933; north=37.2208416; name=04550 Gérgal, Almería, Españaes_ES
dc.date.accessioned2018-03-01T07:54:16Z
dc.date.available2018-03-01T07:54:16Z
dc.date.issued2016-01
dc.identifier.citationPÉREZ CAGIGAL, Manuel et al. Covariance of lucky images for increasing objects contrast: diffraction-limited images in ground-based telescopes. In: Monthly Notices of the Royal Astronomical Society 455.3 (Jan. 2016), pp. 2765–2771es_ES
dc.identifier.issn0035-8711
dc.description.abstractImages of stars adopt shapes far from the ideal Airy pattern due to atmospheric density fluctuations. Hence, diffraction limited images can only be achieved by telescopes without atmospheric influence, e.g. spatial telescopes, or by using techniques like Adaptive Optics or Lucky Imaging. In this paper, we propose a new computational technique based on the evaluation of the COvariancE of Lucky Images (COELI). This technique allows to discover companions to main stars by taking advantage of the atmospheric fluctuations. We describe the algorithm and we carry out a theoretical analysis of the improvement in contrast. We have used images taken with 2.2 m Calar Alto telescope as a testbed for the technique resulting that, under certain conditions, telescope diffraction limit is clearly reached .es_ES
dc.description.sponsorshipThis research was supported by the Ministerio de Economía y Competitividad under project FIS2012-31079 and the Fundación Séneca of Murcia under projects 15419/PI/10 and 15345/PI/10.es_ES
dc.formatapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherBlackwelles_ES
dc.relationContributions to technology and techniques for ground-based and space-based astronomy synthesis of EDAC codecs, AOLI and COELI.
dc.relation.urihttp://hdl.handle.net/10317/6672
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights© Copyright 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Societyes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleCovariance of lucky images for increasing objects contrast: diffraction-limited images in ground-based telescopeses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.subject.otherArquitectura y Tecnología de Computadorases_ES
dc.subjectAtmospheric effectses_ES
dc.subjectTechniques: high angular resolutiones_ES
dc.subjectTechniques: image processinges_ES
dc.identifier.urihttp://hdl.handle.net/10317/6699
dc.peerreviewSies_ES
dc.identifier.doi10.1093/mnras/stv2496
dc.identifier.urlhttps://academic.oup.com/mnras/article-abstract/455/3/2765/2892557?redirectedFrom=fulltext
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
dc.type.versioninfo:eu-repo/semantics/acceptedVersiones_ES
dc.relation.projectIDFIS2012-31079es_ES
dc.relation.projectID15419/PI/10es_ES
dc.relation.projectID15345/PI/10es_ES
dc.subject.unesco2209.90 Tratamiento Digital. Imágeneses_ES
dc.contributor.funderMinisterio de Economía y Competitividades_ES
dc.contributor.funderFundación Sénecaes_ES


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