MEGARA MOS: where are my positioners and fibers pointing to?

MEGARA is an integral-field and multi-object medium-resolution spectrograph for the GTC 10.4m telescope, which was commissioned on June - August 2017. MEGARA offers two observing modes, the LCB mode, a large central IFU; and a Multi-Object Spectrograph (MOS) mode, composed by 92 robotic positioners...

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Detalles Bibliográficos
Autores: Pérez Calpena, Ana, Sánchez-Blanco Mancera, Ernesto, Gómez Álvarez, Pedro, Martínez Delgado, Ismael, Castillo Morales, María África, Gil De Paz, Armando, Arrillaga, Xabier, Xabier, García Vargas, Marisa Luisa, Gallego Maestro, Jesús, Carrasco Licea, Esperanza, Iglesias Páramo, Jorge;, Jorge, Cedazo, Raquel
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/18696
Acceso en línea:https://hdl.handle.net/20.500.14352/18696
Access Level:acceso abierto
Palabra clave:52
MEGARA
GTC
Multi-object spectrograph (MOS)
Optical fibers
Fiber bundles
Robotic positioners
Tilt
pointing
characterization
verification
Astrofísica
Astronomía (Física)
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oai_identifier_str oai:docta.ucm.es:20.500.14352/18696
network_acronym_str ES
network_name_str España
repository_id_str
spelling MEGARA MOS: where are my positioners and fibers pointing to?Pérez Calpena, AnaSánchez-Blanco Mancera, ErnestoGómez Álvarez, PedroMartínez Delgado, IsmaelCastillo Morales, María ÁfricaGil De Paz, ArmandoArrillaga, Xabier, XabierGarcía Vargas, Marisa LuisaGallego Maestro, JesúsCarrasco Licea, EsperanzaIglesias Páramo, Jorge;, JorgeCedazo, Raquel52MEGARAGTCMulti-object spectrograph (MOS)Optical fibersFiber bundlesRobotic positionersTiltpointingcharacterizationverificationAstrofísicaAstronomía (Física)MEGARA is an integral-field and multi-object medium-resolution spectrograph for the GTC 10.4m telescope, which was commissioned on June - August 2017. MEGARA offers two observing modes, the LCB mode, a large central IFU; and a Multi-Object Spectrograph (MOS) mode, composed by 92 robotic positioners carrying 7-fiber minibundles each. This paper presents the models and measurements developed for the alignment between the image of the telescope pupil and the 100-itm fiber cores during the integration and verification at the laboratory. On the one hand, the error in the positioner-minibundles assembly was optimized with the aim of achieving a fiber-to-fiber flux homogeneity better than 10%. On the other hand, the positioner pointing was characterized in order to achieve a pointing precision of 1/5 of the spaxel size (which has been designed to be 0.62 arcsec). The on-sky measurements obtained during the commissioning to verify our laboratory results are also presented.SPIE-Int Soc Optical EngineeringUniversidad Complutense de Madrid20182018-01-0120182018-01-01journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/18696reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/186962026-06-02T12:44:21Z
dc.title.none.fl_str_mv MEGARA MOS: where are my positioners and fibers pointing to?
title MEGARA MOS: where are my positioners and fibers pointing to?
spellingShingle MEGARA MOS: where are my positioners and fibers pointing to?
Pérez Calpena, Ana
52
MEGARA
GTC
Multi-object spectrograph (MOS)
Optical fibers
Fiber bundles
Robotic positioners
Tilt
pointing
characterization
verification
Astrofísica
Astronomía (Física)
title_short MEGARA MOS: where are my positioners and fibers pointing to?
title_full MEGARA MOS: where are my positioners and fibers pointing to?
title_fullStr MEGARA MOS: where are my positioners and fibers pointing to?
title_full_unstemmed MEGARA MOS: where are my positioners and fibers pointing to?
title_sort MEGARA MOS: where are my positioners and fibers pointing to?
dc.creator.none.fl_str_mv Pérez Calpena, Ana
Sánchez-Blanco Mancera, Ernesto
Gómez Álvarez, Pedro
Martínez Delgado, Ismael
Castillo Morales, María África
Gil De Paz, Armando
Arrillaga, Xabier, Xabier
García Vargas, Marisa Luisa
Gallego Maestro, Jesús
Carrasco Licea, Esperanza
Iglesias Páramo, Jorge;, Jorge
Cedazo, Raquel
author Pérez Calpena, Ana
author_facet Pérez Calpena, Ana
Sánchez-Blanco Mancera, Ernesto
Gómez Álvarez, Pedro
Martínez Delgado, Ismael
Castillo Morales, María África
Gil De Paz, Armando
Arrillaga, Xabier, Xabier
García Vargas, Marisa Luisa
Gallego Maestro, Jesús
Carrasco Licea, Esperanza
Iglesias Páramo, Jorge;, Jorge
Cedazo, Raquel
author_role author
author2 Sánchez-Blanco Mancera, Ernesto
Gómez Álvarez, Pedro
Martínez Delgado, Ismael
Castillo Morales, María África
Gil De Paz, Armando
Arrillaga, Xabier, Xabier
García Vargas, Marisa Luisa
Gallego Maestro, Jesús
Carrasco Licea, Esperanza
Iglesias Páramo, Jorge;, Jorge
Cedazo, Raquel
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 52
MEGARA
GTC
Multi-object spectrograph (MOS)
Optical fibers
Fiber bundles
Robotic positioners
Tilt
pointing
characterization
verification
Astrofísica
Astronomía (Física)
topic 52
MEGARA
GTC
Multi-object spectrograph (MOS)
Optical fibers
Fiber bundles
Robotic positioners
Tilt
pointing
characterization
verification
Astrofísica
Astronomía (Física)
description MEGARA is an integral-field and multi-object medium-resolution spectrograph for the GTC 10.4m telescope, which was commissioned on June - August 2017. MEGARA offers two observing modes, the LCB mode, a large central IFU; and a Multi-Object Spectrograph (MOS) mode, composed by 92 robotic positioners carrying 7-fiber minibundles each. This paper presents the models and measurements developed for the alignment between the image of the telescope pupil and the 100-itm fiber cores during the integration and verification at the laboratory. On the one hand, the error in the positioner-minibundles assembly was optimized with the aim of achieving a fiber-to-fiber flux homogeneity better than 10%. On the other hand, the positioner pointing was characterized in order to achieve a pointing precision of 1/5 of the spaxel size (which has been designed to be 0.62 arcsec). The on-sky measurements obtained during the commissioning to verify our laboratory results are also presented.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/18696
url https://hdl.handle.net/20.500.14352/18696
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SPIE-Int Soc Optical Engineering
publisher.none.fl_str_mv SPIE-Int Soc Optical Engineering
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869416751482011648
score 15,301603

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