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Related papers: MEGARA-GTC Stellar Spectral Library (II). MEGASTAR…

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In this work we present spectroscopic observations centered in the spectral lines most widely used as optical indicators of chromospheric activity (H{alpha}, H{beta}, Ca II H & K, and He I D{3}) in a sample of F, G, K and M…

Astrophysics · Physics 2009-10-28 D. Montes , E. L. Martin , M. J. Fernandez-Figueroa , M. Cornide , E. De Castro

We present the first release of XSL, the X-Shooter Spectral Library. This release contains 237 stars spanning the wavelengths 3000--10200 \AA\ observed at a resolving power $R \equiv \lambda / \Delta\lambda \sim 10000$. The spectra were…

Solar and Stellar Astrophysics · Physics 2014-05-28 Yan-Ping Chen , S. C. Trager , R. F. Peletier , A. Lançon , A. Vazdekis , Ph. Prugniel , D. R. Silva , A. Gonneau

We report an independent spectral classification of a sample of poorly studied M-dwarf candidate stars observed with the OSIRIS instrument at GTC. Our project was carried out as an independent test of the spectral classification. It is…

Solar and Stellar Astrophysics · Physics 2019-12-24 Cristina Cabello , Géza Csörnyei , Jaroslav Merc , Verónica Ferreirós Lopez , Peter Pessev

The visual STELLA echelle spectrograph (SES-VIS) is a new instrument for the STELLA-II telescope at the Iza\~na observatory on Tenerife. Together with the original SES spectrograph - which will still be used in the near IR - and a new…

Instrumentation and Methods for Astrophysics · Physics 2020-12-16 Michael Weber , Klaus Strassmeier , Manfred Woche , Ilya Ilyin , Arto Järvinen

Stellar spectra derived from current multiple-object fiber-fed spectroscopic radial-velocity surveys, of the type feasible with, among other examples, AUTOFIB, 2dF, HYDRA, NESSIE, and the Sloan survey, differ significantly from those…

Astrophysics · Physics 2007-05-23 J. Bryn Jones , Rosemary F. G. Wyse , Gerard Gilmore

We describe the spectroscopic target selection for the Galaxy And Mass Assembly (GAMA) survey. The input catalogue is drawn from the Sloan Digital Sky Survey (SDSS) and UKIRT Infrared Deep Sky Survey (UKIDSS). The aim is to measure…

We present a comprehensive analysis of the compact planetary nebula M2-31 investigating its spectral properties, spatio-kinematical structure and chemical composition using GTC MEGARA integral field spectroscopic observations and NOT ALFOSC…

Solar and Stellar Astrophysics · Physics 2021-09-22 J. S. Rechy-García , J. A. Toalá , S. Cazzoli , M. A. Guerrero , L. Sabin , V. M. A. Gómez-González , G. Ramos-Larios

Full low resolution (65<R<130) and high resolution (R~600) spectra between 5 microns and 37 microns obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope are presented for eight classical active galactic nuclei (AGN)…

We present the construction and early results of ESPARTACO 2, the new stellar spectrograph built for research and education at the Astronomical Observatory of the Universidad de los Andes in Bogot\'a, Colombia. This instrument offers…

Instrumentation and Methods for Astrophysics · Physics 2025-04-30 B. Oostra , M. G. Batista

The MERTIS (MErcury Radiometer and Thermal Infrared Spectrometer) instrument onboard the ESA/JAXA BepiColombo mission will provide mid-infrared data, which will be crucial to characterize the surface mineralogy of Mercury. In order to…

Earth and Planetary Astrophysics · Physics 2023-02-21 A. Morlok , S. Klemme , I. Weber , A. N. Stojic , M. Sohn , H. Hiesinger , J. Helbert

\textsc{GALATEA} (the \emph{Galactic Archaeology and Local-group Astrophysics Telescope for Extended Areas}) is a concept for a dedicated 15-m, wide-field, 10,000-fibre spectroscopic survey facility in the northern hemisphere, optimized for…

The preliminary design of the new space gamma-ray telescope GAMMA-400 for the energy range 100 MeV - 3 TeV is presented. The angular resolution of the instrument, 1-2{\deg} at E{\gamma} ~100 MeV and ~0.01^{\circ} at E{\gamma} > 100 GeV, its…

Libraries of stellar spectra find many uses in astrophysics, from photometric calibration to stellar population synthesis. We present low resolution spectra of 40 stars from 0.2 micrometers (ultraviolet) to 1.0 micrometers (near infrared)…

Solar and Stellar Astrophysics · Physics 2018-07-25 Islam Khan , Guy Worthey

The Galactic O-Star Spectroscopic Survey (GOSSS) is obtaining high quality R~2500 blue-violet spectroscopy of all Galactic stars ever classified as of O type with B < 12 and a significant fraction of those with B = 12-14. As of June 2013,…

HERMES, a fibre-fed high-resolution (R=85000) echelle spectrograph with good stability and excellent throughput, is the work-horse instrument of the 1.2-m Mercator telescope on La Palma. HERMES targets building up time series of…

Instrumentation and Methods for Astrophysics · Physics 2015-06-17 Gert Raskin , Hans Van Winckel

We present the second data release of the Large Early Galaxy Astrophysics Census (LEGA-C), an ESO 130-night public spectroscopic survey conducted with VIMOS on the Very Large Telescope. We release 1988 spectra with typical continuum S / N…

We present [Fe/H] and [Ca/Fe] of $\sim600$ red giant branch (RGB) members of the globular cluster $\omega$ Centauri. We collect medium-resolution ($R\sim2000$) spectra using the Blanco 4 m telescope at the Cerro Tololo Inter-American…

Astrophysics of Galaxies · Physics 2017-09-27 Deokkeun An , Young Sun Lee , Jae In Jung , Soo-Chang Rey , Jaehyon Rhee , Jae-Woo Lee , Young-Wook Lee , Young Hoon Joe

We calibrate spectrophotometric optical spectra of 32 stars commonly used as standard stars, referenced to 14 stars already on the HST-based CALSPEC flux system. Observations of CALSPEC and non-CALSPEC stars were obtained with the SuperNova…

EIFIS (Extreme Integral FIeld Spectrograph) is a modular integral field spectrograph, based on image slicers, and makes use of new, large format detectors. The concept is thought to cover the largest possible field of view while producing…

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