In Flange Derotator Design for the 4m DAG telescope

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dc.authorid0000-0003-1678-245X
dc.authorid0000-0001-5549-2717
dc.authorid0000-0002-2290-5228
dc.authorid0000-0003-1894-7190
dc.contributor.authorÜnal, Ali Cemen_US
dc.contributor.authorSarajlic, Mirsaden_US
dc.contributor.authorJolissaint De Sepibus, Laurenten_US
dc.contributor.authorKeskin, Onuren_US
dc.contributor.authorYeşilyaprak, Cahiten_US
dc.contributor.authorBaudet, Jeremieen_US
dc.date.accessioned2019-03-17T15:35:45Z
dc.date.available2019-03-17T15:35:45Z
dc.date.issued2018-07-06
dc.departmentIşık Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.departmentIşık University, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.description.abstractThe field rotation effect can be described as observing the gyration of an object with the pupil of the Eastern Anatolian Observatory (DAG) telescope around the optical axis under the influence of the latitude of the observatory while the telescope is following that astronomical object. This is possible as a result of the alt-azimuthal mount of the telescope. (the orientation of the astronomical observed object, the parallactic angle, is defined as "q") Since the CCD has a low signal on noise ratio, it necessitates long integration time that can vary from a few minutes to hours. It is essential to correct and compensate the rotation of the optical field caused by the earth's rotation during the monitoring of the astronomical object. A (field) derotator is a class of devices that is used to correct the optical field rotation. In a telescope of a Ritchey-Chretien, Nasmyth configuration, the device must be integrated between the scientific instruments and the M3 mirror. The anastigmatic and the anachromatic features of this type of derotator is the main reason that it is chosen. These characteristics are provided by the K-Mirror design. The aim of this study is to evaluate the possibility to integrate the derotator in the central hole of the telescope fork and to evaluate the mechanical/optical features of the model.en_US
dc.description.sponsorshipAuthors would like to thank Isik University, ATASAM, Ataturk University, and the Ministry of Development for the funding and supporten_US
dc.description.versionPublisher's Versionen_US
dc.identifier.citationÜnal, A. C., Sarajlic, M., Jolissaint De Sepibus, L., Keskin, O., Yeşilyaprak, C. & Baudet, J. (2018). In Flange Derotator Design for the 4m DAG telescope. Paper presented at the Proceedings of SPIE - The International Society for Optical Engineering, 10700, 1-9. doi:10.1117/12.2313912en_US
dc.identifier.doi10.1117/12.2313912
dc.identifier.endpage9
dc.identifier.isbn9781510619548
dc.identifier.issn0277-786X
dc.identifier.issn1996-756X
dc.identifier.scopus2-s2.0-85051252423
dc.identifier.scopusqualityN/A
dc.identifier.startpage1
dc.identifier.urihttps://hdl.handle.net/11729/1465
dc.identifier.urihttp://dx.doi.org/10.1117/12.2313912
dc.identifier.volume10700
dc.identifier.wosWOS:000450858000108
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakConference Proceedings Citation Index – Science (CPCI-S)en_US
dc.institutionauthorÜnal, Ali Cemen_US
dc.institutionauthorKeskin, Onuren_US
dc.institutionauthorid0000-0002-2290-5228
dc.language.isoenen_US
dc.peerreviewedYesen_US
dc.publicationstatusPublisheden_US
dc.publisherSPIE-INT Soc Optical Engineeringen_US
dc.relation.ispartofProceedings of SPIE - The International Society for Optical Engineeringen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectField derotatoren_US
dc.subjectField rotationen_US
dc.subjectAlt-azimuten_US
dc.subjectRitchey-Chretienen_US
dc.subjectNasmythen_US
dc.subjectK-mirroren_US
dc.subjectDove prismen_US
dc.titleIn Flange Derotator Design for the 4m DAG telescopeen_US
dc.typeConference Objecten_US
dspace.entity.typePublication

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