MEGARA-GTC stellar spectral library – II. MEGASTAR first release
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Título: | MEGARA-GTC stellar spectral library – II. MEGASTAR first release |
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Autor/es: | Carrasco, Esperanza | Mollá, Mercedes | García-Vargas, María Luisa | Gil de Paz, Armando | Cardiel, Nicolás | Gómez-Álvarez, Pedro | Berlanas, Sara R. |
Grupo/s de investigación o GITE: | Astrofísica Estelar (AE) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Física Aplicada |
Palabras clave: | Astronomical data bases: atlases | Astronomical data bases: catalogues | Stars: abundance | Stars: fundamental parameters |
Área/s de conocimiento: | Astronomía y Astrofísica |
Fecha de publicación: | mar-2021 |
Editor: | Oxford University Press |
Cita bibliográfica: | Monthly Notices of the Royal Astronomical Society. 2021, 501(3): 3568-3581. https://doi.org/10.1093/mnras/staa3704 |
Resumen: | MEGARA is an optical integral field and multi-object fibre-based spectrograph for the 10.4 m Gran Telescopio CANARIAS that offers medium-to-high spectral resolutions (FWHM) of R ≃ 6000, 12 000, 20 000. Commissioned at the telescope in 2017, it started operation as a common-user instrument in 2018. We are creating an instrument-oriented empirical spectral library from MEGARA-GTC stars observations, MEGASTAR, crucial for the correct interpretation of MEGARA data. This piece of work describes the content of the first release of MEGASTAR, formed by the spectra of 414 stars observed with R ≃ 20 000 in the spectral intervals 6420–6790 Å and 8370–8885 Å, and obtained with a continuum average signal-to-noise ratio around 260. We describe the release sample, the observations, the data reduction procedure and the MEGASTAR data base. Additionally, we include in Appendix A an atlas with the complete set of 838 spectra of this first release of the MEGASTAR catalogue. |
Patrocinador/es: | This work has been supported by MINECO-FEDER grants AYA2016-75808-R, AYA2016-79724-C4-3-P, RTI2018-096188-BI00, AYA2017-90589-REDT and has been partially funded by FRACTAL, INAOE, and CIEMAT. |
URI: | http://hdl.handle.net/10045/112012 |
ISSN: | 0035-8711 (Print) | 1365-2966 (Online) |
DOI: | 10.1093/mnras/staa3704 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1093/mnras/staa3704 |
Aparece en las colecciones: | INV - Astrofísica Estelar - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Carrasco_etal_2021_MNRAS.pdf | 4,91 MB | Adobe PDF | Abrir Vista previa | |
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