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MELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy

dc.contributor.authorRoyer, P.
dc.contributor.authorMerle, T.
dc.contributor.authorDsilva, K.
dc.contributor.authorSekaran, S.
dc.contributor.authorVan Winckel, H.
dc.contributor.authorFrémat, Y.
dc.contributor.authorVan Der Swaelmen, M.
dc.contributor.authorGebruers, S.
dc.contributor.authorTkachenko, A.
dc.contributor.authorLaverick, M.
dc.contributor.authorDirickx, M.
dc.contributor.authorRaskin, G.
dc.contributor.authorHensberge, H.
dc.contributor.authorAbdul-Masih, M.
dc.contributor.authorAcke, B.
dc.contributor.authorAlonso, M.L.
dc.contributor.authorBandhu Mahato, S.
dc.contributor.authorBeck, P.G.
dc.contributor.authorBehara, N.
dc.contributor.authorBloemen, S.
dc.contributor.authorBuysschaert, B.
dc.contributor.authorCox, N.
dc.contributor.authorDebosscher, J.
dc.contributor.authorDe Cat, P.
dc.contributor.authorDegroote, P.
dc.contributor.authorDe Nutte, R.
dc.contributor.authorDe Smedt, K.
dc.contributor.authorDe Vries, B.
dc.contributor.authorDumortier, L.
dc.contributor.authorEscorza, A.
dc.contributor.authorExter, K.
dc.contributor.authorGoriely, S.
dc.contributor.authorGorlova, N.
dc.contributor.authorHillen, M.
dc.contributor.authorHoman, W.
dc.contributor.authorJorissen, A.
dc.contributor.authorKamath, D.
dc.contributor.authorKarjalainen, M.
dc.contributor.authorKarjalainen, R.
dc.contributor.authorLampens, P.
dc.contributor.authorLobel, A.
dc.contributor.authorLombaert, R.
dc.contributor.authorMarcos-Arenal, P.
dc.contributor.authorMenu, J.
dc.contributor.authorMerges, F.
dc.contributor.authorMoravveji, E.
dc.contributor.authorNemeth, P.
dc.contributor.authorNeyskens, P.
dc.contributor.authorOstensen, R.
dc.contributor.authorPápics, P.I.
dc.contributor.authorPerez, J.
dc.contributor.authorPrins, S.
dc.contributor.authorRoyer, S.
dc.contributor.authorSamadi-Ghadim, A.
dc.contributor.authorSana, H.
dc.contributor.authorSans Fuentes, A.
dc.contributor.authorScaringi, S.
dc.contributor.authorSchmid, V.
dc.contributor.authorSiess, L.
dc.contributor.authorSiopis, C.
dc.contributor.authorSmolders, K.
dc.contributor.authorSódor, Á.
dc.contributor.authorThoul, A.
dc.contributor.authorTriana, S.
dc.contributor.authorVandenbussche, B.
dc.contributor.authorVan De Sande, M.
dc.contributor.authorVan De Steene, G.
dc.contributor.authorVan Eck, S.
dc.contributor.authorVan Hoof, P.A.M.
dc.contributor.authorVan Marle, A.J.
dc.contributor.authorVan Reeth, T.
dc.contributor.authorVermeylen, L.
dc.contributor.authorVolpi, D.
dc.contributor.authorVos, J.
dc.contributor.authorWaelkens, C.
dc.date2024
dc.date.accessioned2025-04-18T09:50:27Z
dc.date.available2025-04-18T09:50:27Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/14031
dc.descriptionAims. Over the past decades, libraries of stellar spectra have been used in a large variety of science cases, including as sources of reference spectra for a given object or a given spectral type. Despite the existence of large libraries and the increasing number of projects of large-scale spectral surveys, there is to date only one very high-resolution spectral library offering spectra from a few hundred objects from the southern hemisphere (UVES-POP). We aim to extend the sample, offering a finer coverage of effective temperatures and surface gravity with a uniform collection of spectra obtained in the northern hemisphere. Methods. Between 2010 and 2020, we acquired several thousand echelle spectra of bright stars with the Mercator-HERMES spectrograph located in the Roque de Los Muchachos Observatory in La Palma, whose pipeline offers high-quality data reduction products. We have also developed methods to correct for the instrumental response in order to approach the true shape of the spectral continuum. Additionally, we have devised a normalisation process to provide a homogeneous normalisation of the full spectral range for most of the objects. Results. We present a new spectral library consisting of 3256 spectra covering 2043 stars. It combines high signal-to-noise and high spectral resolution over the entire range of effective temperatures and luminosity classes. The spectra are presented in four versions: raw, corrected from the instrumental response, with and without correction from the atmospheric molecular absorption, and normalised (including the telluric correction).
dc.languageeng
dc.titleMELCHIORS: The Mercator Library of High Resolution Stellar Spectroscopy
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.freeSignal to noise ratio; Spectral resolution; Spectroscopic analysis; Stars; Temperature; Atmospheric effects; Catalog; Effective temperature; Instrumental response; Methods. Data analysis; Methods:observational; Spectra's; Spectral libraries; Stars: general; Techniques: spectroscopic; Libraries
dc.source.titleAstronomy and Astrophysics
dc.source.volume681
dc.source.pageA107
Orfeo.peerreviewedYes
dc.identifier.doi10.1051/0004-6361/202346847
dc.identifier.scopus


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