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Título:
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MEGARA. Large pupil element tests and performance
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Autores:
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Martínez-Delgado, I. ;
Sánchez-Blanco, E. ;
Pérez-Calpena, A. ;
García-Vergasa, M.L. ;
Maldonado, X.M. ;
Gil de Paz, Armando ;
Carrasco, E. ;
Gallego Maestro, Jesús ;
Iglesias-Páramo, J. ;
Sánchez Moreno, F.M. ;
MEGARA, Team
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Tipo de documento:
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texto impreso
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Editorial:
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SPIE-Int. Soc. Optical Engineering, 2016-07-22
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Astrofísica
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Materia = Ciencias: Física: Astronomía
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Tipo = Sección de libro
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Resumen:
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MEGARA is a third generation spectrograph for the Spanish 10.4m telescope (GTC) providing two observing modes: a large central Integral Field Unit (IFU), called the Large Compact Bundle (LCB), covering a FOV of 12.5 × 11.3 arcsec^(2) , and a Multi-Object Spectrograph (MOS) with a FOV of 3.5 × 3.5 arcmin^(2) . MEGARA will observe the whole visible range from 3650A to 10000A allowing different spectral resolutions (low, medium and high) with R = 6000, 11000 and 18000 respectively. The dispersive elements are placed at the spectrograph pupil position in the path of the collimated beam and they are composed of a set of volume phase hologram gratings (VPHs) sandwiched between two flat windows and coupled in addition to two prisms in the case of the medium- and high-resolution units. We will describe the tests and setups developed to check the requirements of all units, as well as the obtained performance at laboratory.
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En línea:
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https://eprints.ucm.es/id/eprint/62894/1/gildepaz185libre.pdf
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