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MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: Getting ready for the telescope

Author
Gil de Paz, A.; Carrasco, E.; Gallego, J.; Iglesias-Páramo, J.; Cedazo, R.; García Vargas, M. L.; Arrillaga, X.; Avilés, J. L.; Cardiel, N.; Carrera, M. A.; Castillo-Morales, A.; Castillo-Domínguez, E.; De la Cruz García, J. M.; 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.; Páez, G.; Pascual, S.; Pérez-Calpena, A.; Picazo, P.; Sánchez-Penim, A.; Sánchez-Blanco, E.; Tulloch, S.; Veláquez, M.; Vílchez, J. M.; Zamorano, J.; Aguerri, A. L.; Barrado, David; Bertone, E.; Cava, A.; Cenarro, J.; Chávez, M.; García, M.; 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, Y. D.; Méndez-Abreu, Jairo; Mollá, M.; Muñoz-Tuñón, C.; Peimbert, M.; Pérez-González, Pablo G.; Pérez Montero, Enrique; Rodríguez, M.; Rodríguez-Espinosa, José M.; Rodríguez-Merino, L.; Rodríguez-Muñoz, L.; Rosa-González, D.; Sánchez-Almeida, J.; Sánchez Contreras, C.; Sánchez-Blázquez, Patricia; Sánchez Moreno, F. M.; Sánchez, S. F.; Sarajedini, A.; Silich, S.; Simón-Díaz, S.; Tenorio-Tagle, G.; Terlevich, E.; Torres-Peimbert, S.; Trujillo, I.; Tsamis, Y.; Vega, O.
Entity
UAM. Departamento de Física Teórica
Publisher
Society of Photo-optical Instrumentation Engineers (SPIE)
Date
2016-01-01
Citation
10.1117/12.2231988
Proceedings SPIE 9908. Ground-based and Airborne Instrumentation for Astronomy VI, edited by Christopher J. Evans, Luc Simard, Hideki Takami. 16 August 2016
 
 
 
ISSN
0277-786X (print); 1996-756X (online)
DOI
10.1117/12.2231988
Editor's Version
https://doi.org/10.1117/12.2231988
Subjects
Galaxies: Local Group; Instrumentation: spectrographs; ISM: kinematics and dynamics; Kinematics and dynamics; Spiral; Techniques: spectroscopic; Física
URI
http://hdl.handle.net/10486/681719
Note
A. Gil de Paz... et al. "MEGARA, the new intermediate-resolution optical IFU and MOS for GTC: getting ready for the telescope". Ground-based and Airborne Instrumentation for Astronomy VI, Proc.SPIE 9908 ( (4 August 2016); doi: 10.1117/12.2231988. Copyright 2016 Society of Photo‑Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Proceedings of the VI Ground-based and Airborne Instrumentation for Astronomy Conference (Edinburgh, United Kingdom)
Rights
© 2016 Society of Photo-Optical Instrumentation Engineers

Abstract

MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) is an optical Integral-Field Unit (IFU) and Multi-Object Spectrograph (MOS) designed for the GTC 10.4m telescope in La Palma that is being built by a Consortium led by UCM (Spain) that also includes INAOE (Mexico), IAA-CSIC (Spain), and UPM (Spain). The instrument is currently finishing AIV and will be sent to GTC on November 2016 for its on-sky commissioning on April 2017. The MEGARA IFU fiber bundle (LCB) covers 12.5x11.3 arcsec2 with a spaxel size of 0.62 arcsec while the MEGARA MOS mode allows observing up to 92 objects in a region of 3.5x3.5 arcmin 2 around the IFU. The IFU and MOS modes of MEGARA will provide identical intermediate-to-high spectral resolutions (RFWHM∼6,000, 12,000 and 18,700, respectively for the low-, mid- and high-resolution Volume Phase Holographic gratings) in the range 3700-9800 ÄA. An x-y mechanism placed at the pseudo-slit position allows (1) exchanging between the two observing modes and (2) focusing the spectrograph for each VPH setup. The spectrograph is a collimator-camera system that has a total of 11 VPHs simultaneously available (out of the 18 VPHs designed and being built) that are placed in the pupil by means of a wheel and an insertion mechanism. The custom-made cryostat hosts a 4kx4k 15-μm CCD. The unique characteristics of MEGARA in terms of throughput and versatility and the unsurpassed collecting are of GTC make of this instrument the most efficient tool to date to analyze astrophysical objects at intermediate spectral resolutions. In these proceedings we present a summary of the instrument characteristics and the results from the AIV phase. All subsystems have been successfully integrated and the system-level AIV phase is progressing as expected
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Google™ Scholar:Gil de Paz, A. - Carrasco, E. - Gallego, J. - Iglesias-Páramo, J. - Cedazo, R. - García Vargas, M. L. - Arrillaga, X. - Avilés, J. L. - Cardiel, N. - Carrera, M. A. - Castillo-Morales, A. - Castillo-Domínguez, E. - De la Cruz García, J. M. - 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. - Páez, G. - Pascual, S. - Pérez-Calpena, A. - Picazo, P. - Sánchez-Penim, A. - Sánchez-Blanco, E. - Tulloch, S. - Veláquez, M. - Vílchez, J. M. - Zamorano, J. - Aguerri, A. L. - Barrado, David - Bertone, E. - Cava, A. - Cenarro, J. - Chávez, M. - García, M. - 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, Y. D. - Méndez-Abreu, Jairo - Mollá, M. - Muñoz-Tuñón, C. - Peimbert, M. - Pérez-González, Pablo G. - Pérez Montero, Enrique - Rodríguez, M. - Rodríguez-Espinosa, José M. - Rodríguez-Merino, L. - Rodríguez-Muñoz, L. - Rosa-González, D. - Sánchez-Almeida, J. - Sánchez Contreras, C. - Sánchez-Blázquez, Patricia - Sánchez Moreno, F. M. - Sánchez, S. F. - Sarajedini, A. - Silich, S. - Simón-Díaz, S. - Tenorio-Tagle, G. - Terlevich, E. - Torres-Peimbert, S. - Trujillo, I. - Tsamis, Y. - Vega, O.

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