6 July 2018 MEGARA, the R=6000-20000 IFU and MOS of GTC
Author Affiliations +
Abstract
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.
Conference Presentation
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Carrasco, E. Carrasco, A. Gil de Paz, A. Gil de Paz, J. Gallego, J. Gallego, J. Iglesias-Páramo, J. Iglesias-Páramo, R. Cedazo, R. Cedazo, M. L. García Vargas, M. L. García Vargas, X. Arrillaga, X. Arrillaga, J. L. Avilés, J. L. Avilés, A. Bouquin, A. Bouquin, J. Carbajo, J. Carbajo, N. Cardiel, N. Cardiel, M. A. Carrera, M. A. Carrera, A. Castillo Morales, A. Castillo Morales, E. Castillo-Domínguez, E. Castillo-Domínguez, S. Esteban San Román, S. Esteban San Román, D. Ferrusca, D. Ferrusca, P. Gómez-Álvarez, P. Gómez-Álvarez, R. Izazaga-Pérez, R. Izazaga-Pérez, B. Lefort, B. Lefort, J. A. López Orozco, J. A. López Orozco, M. Maldonado, M. Maldonado, I. Martínez Delgado, I. Martínez Delgado, I. Morales Durán, I. Morales Durán, E. Mújica, E. Mújica, R. Ortiz, R. Ortiz, G. Páez, G. Páez, S. Pascual, S. Pascual, A. Pérez-Calpena, A. Pérez-Calpena, P. Picazo, P. Picazo, A. Sánchez-Penim, A. Sánchez-Penim, E. Sánchez-Blanco, E. Sánchez-Blanco, S. Tulloch, S. Tulloch, M. Velázquez, M. Velázquez, J. M. Vílchez, J. M. Vílchez, J. Zamorano, J. Zamorano, A. L. Aguerri, A. L. Aguerri, D. Barrado, D. Barrado, E. Bertone, E. Bertone, A. Cava, A. Cava, C. Catalán-Torrecilla, C. Catalán-Torrecilla, J. Cenarro, J. Cenarro, M. Chávez, M. Chávez, B. T. Dullo, B. T. Dullo, C. Eliche, C. Eliche, Mi. García, Mi. García, J. García-Rojas, J. García-Rojas, J. Guichard, J. Guichard, R. González-Delgado, R. González-Delgado, R. Guzmán, R. Guzmán, A. Herrero, A. Herrero, N. Huélamo, N. Huélamo, D. H. Hughes, D. H. Hughes, J. Jiménez-Vicente, J. Jiménez-Vicente, C. Kehrig, C. Kehrig, R. A. Marino, R. A. Marino, I. Márquez, I. Márquez, J. Masegosa, J. Masegosa, D. Mayya, D. Mayya, J. Méndez-Abreu, J. Méndez-Abreu, M. Mollá, M. Mollá, C. Muñoz-Tuñón, C. Muñoz-Tuñón, M. Peimbert, M. Peimbert, P. G. Pérez-González, P. G. Pérez-González, E. Pérez-Montero, E. Pérez-Montero, S. Roca-Fàbrega, S. Roca-Fàbrega, M. Rodríguez, M. Rodríguez, J. M. Rodríguez-Espinosa, J. M. Rodríguez-Espinosa, L. Rodríguez-Merino, L. Rodríguez-Merino, L. Rodríguez-Muñoz, L. Rodríguez-Muñoz, D. Rosa-González, D. Rosa-González, J. Sánchez-Almeida, J. Sánchez-Almeida, C. Sánchez Contreras, C. Sánchez Contreras, P. Sánchez-Blázquez, P. Sánchez-Blázquez, S. F. Sánchez, S. F. Sánchez, A. Sarajedini, A. Sarajedini, S. Silich, S. Silich, S. Simón-Díaz, S. Simón-Díaz, G. Tenorio-Tagle , G. Tenorio-Tagle , E. Terlevich, E. Terlevich, R. Terlevich, R. Terlevich, S. Torres-Peimbert, S. Torres-Peimbert, I. Trujillo, I. Trujillo, Y. Tsamis, Y. Tsamis, O. Vega, O. Vega, } "MEGARA, the R=6000-20000 IFU and MOS of GTC", Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070216 (6 July 2018); doi: 10.1117/12.2313040; https://doi.org/10.1117/12.2313040
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