J/A+A/503/639ivo://CDS.VizieR/J/A+A/503/639doi:10.26093/cds/vizier.35030639CDSTesti L.2023-05-26T15:32:18Z2009-10-26T08:51:06ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frdwarf-starslate-type-starsinfrared-astronomyspectroscopyWe present complete near-infrared (0.85-2.45um), low-resolution (R~100) spectra of a sample of 54 disk M-, L-, and T-dwarfs with reliable optical or near infrared spectral-type classification from the literature. The observations were obtained with a prism-based optical element, the Amici device, which provides a complete spectrum of the source on the detector. Our observations indicate that low-resolution near-infrared spectroscopy can be used to determine the spectral classification of late-type field dwarfs in a fast but accurate way. We derive a set of near-infrared spectral indices that are useful to the classification of field dwarfs not seriously affected by reddening. Finally, we show that the comparison of Amici spectra with model atmospheres allows us to obtain a reliable estimate of the dwarf effective temperatures2009A&A...503..639Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/503/639CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/123/3409 : SDSS M, L, and T dwarfs (Hawley+, 2002)J/ApJ/564/421 : Spectra of T dwarfs. I. (Burgasser+, 2002)J/AJ/126/2487 : T dwarfs in the southern hemisphere (Burgasser+, 2003)J/AJ/127/3553 : JHK photometry and spectroscopy for L & T dwarfs (Knapp 2004)J/AJ/127/3553 : L and T dwarfs JHK photometry & spectroscopy (Knapp+, 2004)J/PASP/118/659 : RI photometry of 2MASS late M and L dwarfs (Liebert+, 2006)J/AJ/131/2722 : New L and T dwarfs from the SDSS (Chiu+, 2006)J/AJ/132/866 : New M dwarfs in solar neighborhood (Riaz+, 2006)J/ApJ/637/1067 : Near-IR spectral classification of T dwarfs (Burgasser+ 2006)J/ApJ/648/629 : Radio obs. of late M, L, and T dwarfs (Berger+, 2006)J/ApJ/651/502 : Spitzer IRAC photometry of M, L, and T dwarfs (Patten+, 2006)J/MNRAS/383/831 : New DENIS nearby L and late-M dwarfs (Phan-Bao+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/503/639https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/503/639http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/503/639https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/503/639https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/503/639http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/503/639GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/503/639/stars (Observed M-, L-, and T-dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/503/639/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/503/639/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/503/639/stars?GETtext/xml+votable180.050000true41.06458325.5233330.0055555555555555566/207 223 369 399 749 763 811 2110 2149 4630 4719 4775 4790 5002 5077 5147 5413 6223 6255 8761 8972 9072 10555 10813 10850 11164 13425 16645 16742 16827 17166 17594 18155 18574 19317 19647 19813 19857 20001 20100 20436 21835 21861 22391 22521 22645 22681 26210 26861 27635 31319 40941 44286 45023https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/503/639?format=asciiInfrareddefaultJ/A+A/503/639/starsObserved M-, L-, and T-dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeMK spectral type (1)src.spTypecharObs.DateObservation datetime.epoch;obsnullableRef[1/5] Reference (2)meta.ref;pos.frameintNoteNotemeta.notecharFileNameName of the file containing the spectra in sp subdirectorymeta.id;meta.filecharSNameSimbad namemeta.idchar