Bibcode
Carrasco, E.; Gil de Paz, A.; Gallego, J.; Iglesias-Páramo, J.; Cedazo, R.; García Vargas, M. L.; Arrillaga, X.; Avilés, J. L.; Bouquin, A.; Carbajo, J.; Cardiel, N.; Carrera, M. A.; Castillo Morales, A.; Castillo-Domínguez, E.; Esteban San Román, S.; Ferrusca, D.; Gómez-Álvarez, P.; Izazaga-Pérez, R.; Lefort, B.; López Orozco, J. A.; Maldonado, M.; Martínez Delgado, I.; Morales Durán, I.; Mújica, E.; Ortiz, R.; Páez, G.; Pascual, S.; Pérez-Calpena, A.; Picazo, P.; Sánchez-Penim, A.; Sánchez-Blanco, E.; Tulloch, S.; Velázquez, M.; Vílchez, J. M.; Zamorano, J.; Aguerri, A. L.; Barrado, D.; Bertone, E.; Cava, A.; Catalán-Torrecilla, C.; Cenarro, J.; Chávez, M.; Dullo, B. T.; Eliche, C.; García, Mi.; García-Rojas, J.; Guichard, J.; González-Delgado, R.; Guzmán, R.; Herrero, A.; Huélamo, N.; Hughes, D. H.; Jiménez-Vicente, J.; Kehrig, C.; Marino, R. A.; Márquez, I.; Masegosa, J.; Mayya, D.; Méndez-Abreu, J.; Mollá, M.; Muñoz-Tuñón, C.; Peimbert, M.; Pérez-González, P. G.; Pérez-Montero, E.; Roca-Fàbrega, S.; Rodríguez, M.; Rodríguez-Espinosa, J. M.; Rodríguez-Merino, L.; Rodríguez-Muñoz, L.; Rosa-González, D.; Sánchez-Almeida, J.; Sánchez Contreras, C.; Sánchez-Blázquez, P.; Sánchez, S. F.; Sarajedini, A.; Silich, S.; Simón-Díaz, S.; Tenorio-Tagle, G.; Terlevich, E.; Terlevich, R.; Torres-Peimbert, S.; Trujillo, I.; Tsamis, Y.; Vega, O.
Bibliographical reference
Proceedings of the SPIE, Volume 10702, id. 1070216 21 pp. (2018).
Advertised on:
7
2018
Citations
9
Refereed citations
9
Description
MEGARA is the new generation IFU and MOS optical spectrograph built for
the 10.4m Gran Telescopio CANARIAS (GTC). The project was developed by a
consortium led by UCM (Spain) that also includes INAOE (Mexico),
IAA-CSIC (Spain) and UPM (Spain). The instrument arrived to GTC on March
28th 2017 and was successfully integrated and commissioned at the
telescope from May to August 2017. During the on-sky commissioning we
demonstrated that MEGARA is a powerful and robust instrument that
provides on-sky intermediate-to-high spectral resolutions RFWHM 6,000,
12,000 and 20,000 at an unprecedented efficiency for these resolving
powers in both its IFU and MOS modes. The IFU covers 12.5 x 11.3
arcsec2 while the MOS mode allows observing up to 92 objects
in a region of 3.5 x 3.5 arcmin2. In this paper we describe
the instrument main subsystems, including the Folded-Cassegrain unit,
the fiber link, the spectrograph, the cryostat, the detector and the
control subsystems, and its performance numbers obtained during
commissioning where the fulfillment of the instrument requirements is
demonstrated.
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