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First scientific observations with MEGARA at GTC

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Gil de Paz, Armando and Gallego Maestro, Jesús and Bouquin, A. and Carbajo, J. and Cardiel López, Nicolás and Castillo Morales, África and Esteban San Román, Segundo and López Orozco, José Antonioi and Pascual Ramírez, Sergio and Picazo, P. and Sánchez Penim, Ainhoa and Zamorano Calvo, Jaime and Catalán Torrecilla, Cristina and Dullo, Bililign and Pérez González, P.G. (2018) First scientific observations with MEGARA at GTC. Ground-based and airbone instrumentation for astronomy, 10702 . ISSN 0277-786X

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Official URL: https://doi.org/10.1117/12.2313299




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-α 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.


Item Type:Article
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© 2018 SPIE. Artículo firmado por 82 autores. Conference on Ground-Based and Airborne Instrumentation for Astronomy (VII. 2018. Austin, TX, USA).

Uncontrolled Keywords:Intermediate-resolution IFU & MOS; Optical spectrograph; Resolved stellar populations; Cosmis web; Lyman-alpha forest; Kinematics and dynamics; Nearby galaxies; Optical fibers.
Subjects:Sciences > Physics > Astrophysics
ID Code:51309
Deposited On:03 Apr 2019 10:54
Last Modified:03 Apr 2019 10:54

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