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First scientific observations with MEGARA at GTC
Publicated to:Proceedings Of Spie - The International Society For Optical Engineering. 10702 (UNSP 1070217): UNSP 1070217- - 2018-01-01 10702(UNSP 1070217), DOI: 10.1117/12.2313299
Authors: Gil de Paz, A; Carrasco, E; Gallego, J; Iglesias-Paramo, J; Cedazo, R; Garcia Vargas, M L; Arrillaga, X; Aviles, J L; Bouquin, A; Carbajo, J; Cardiel, N; Carrera, M A; Castillo-Morales, A; Castillo-Dominguez, E; Esteban San Roman, S; Ferrusca, D; Gomez-Alvarez, P; Izazaga-Perez, R; Lefort, B; Lopez-Orozco, J A; Maldonado, M; Martinez-Delgado, I; Morales Duran, I; Mujica, E; Paez, G; Pascual, S; Perez-Calpena, A; Picazo, P; Sanchez-Penim, A; Sanchez-Blanco, E; Tulloch, S; Velazquez, M; Vilchez, J M; Zamorano, J; Aguerri, A L; Barrado y Navascues, D; Berlanas, S R; Bertone, E; Cava, A; Catalan-Torrecilla, C; Cenarro, J; Chavez, M; Dullo, B T; Garcia, M; Garcia-Rojas, J; Guichard, J; Gonzalez-Delgado, R; Guzman, R; Herrero, A; Huelamo, N; Hughes, D H; Jimenez-Vicente, J; Kehrig, C; Marino, R A; Marquez, I; Masegosa, J; Mayya, Y D; Mendez-Abreu, J; Molla, M; Munoz-Tunon, C; Peimbert, M; Perez-Gonzalez, P G; Perez Montero, E; Rodriguez, M; Rodriguez-Espinosa, J M; Rodriguez-Merino, L; Rodriguez Munoz, L; Rosa-Gonzalez, D; Sanchez-Almeida, J; Sanchez Contreras, C; Sanchez-Blazquez, P; Sanchez, S F; Sarajedini, A; Silich, S; Simon-Diaz, S; Tenorio-Tagle, G; Terlevich, E; Terlevich, R; Torres-Peimbert, S; Trujillo, I; Tsamis, Y; Vega, O
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Abstract
On June 25th 2017, the new intermediate-resolution optical IFU and MOS of the 10.4-m GTC had its first light. As part of the tests carried out to verify the performance of the instrument in its two modes (IFU & MOS) and 18 spectral setups (identical number of VPHs with resolutions R=6000-20000 from 0.36 to 1 micron) a number of astronomical objects were observed. These observations show that MEGARA@GTC is called to fill a niche of high-throughput, intermediate-resolution IFU & MOS observations of extremely-faint narrow-lined objects. Lyman-alpha absorbers, star-forming dwarfs or even weak absorptions in stellar spectra in our Galaxy or in the Local Group can now be explored to a new level. Thus, the versatility of MEGARA in terms of observing modes and spectral resolution and coverage will allow GTC to go beyond current observational limits in either depth or precision for all these objects. The results to be presented in this talk clearly demonstrate the potential of MEGARA in this regard.
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The work has been published in the journal Proceedings Of Spie - The International Society For Optical Engineering, Q3 Agency Scopus (SJR), its regional focus and specialization in Electrical and Electronic Engineering, give it significant recognition in a specific niche of scientific knowledge at an international level.
From a relative perspective, and based on the normalized impact indicator calculated from the Field Citation Ratio (FCR) of the Dimensions source, it yields a value of: 5.23, which indicates that, compared to works in the same discipline and in the same year of publication, it ranks as a work cited above average. (source consulted: Dimensions Aug 2025)
Specifically, and according to different indexing agencies, this work has accumulated citations as of 2025-08-11, the following number of citations:
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- Scopus: 17
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This work has been carried out with international collaboration, specifically with researchers from: Granada; Italy; Mexico; Montenegro; Switzerland; United Kingdom; United States of America.