J/ApJS/142/79ivo://CDS.VizieR/J/ApJS/142/79doi:10.26093/cds/vizier.21420079CDSMalkan M.A.Hicks E.K.Teplitz H.I.McLean I.M.Sugai H.Guichard J.2017-07-11T13:08:32Z2007-05-01T19:17:24ZCDS support team

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

cds-question@unistra.frinfrared-sourcesline-intensitieseffective-temperatureWe present a catalog of J-band (1.08 to 1.35{mu}m) stellar spectra at low resolution (R~400). The targets consist of 105 stars ranging in spectral type from O9.5 to M7 and luminosity classes I through V. The relatively featureless spectra of hot stars, earlier than A4, can be used to remove the atmospheric features which dominate ground-based J-band spectroscopy. We measure equivalent widths for three absorption lines and nine blended features which we identify in the spectra. Using detailed comparison with higher resolution spectra, we demonstrate that low-resolution data can be used for stellar classification, since several features depend on the effective temperature and gravity. For example, the CN index (1.096-1.104{mu}m) decreases with temperature, but the strength of a blended feature at 1.28{mu}m (consisting of primarily P{beta}) increases. The slope of a star's spectrum can also be used to estimate its effective temperature. The luminosity class of a star correlates with the ratio of the MgI (1.1831{mu}m) line to a blend of several species at 1.16{mu}m. Using these indicators, a star can be classified to within several subclasses. Fifteen stars with particularly high and low metal abundances are included in the catalog, and some spectral dependence on metal abundance is also found.2002ApJS..142...79Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/142/79CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/142/79https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/142/79http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/142/79https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/142/79https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/142/79http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/142/79GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/142/79/atlas (Combined table from original tables)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/142/79/atlas?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/142/79/atlas?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/142/79/atlas?GETtext/xml+votable180.050000true5.227463910.97690110.0055555555555555566/137 254 418 546 737 1014 1015 2613 3032 3239 3430 3547 3667 3754 4468 5392 5836 6052 6106 7202 7274 7384 7486 7521 7863 7989 8109 8494 9048 9552 10028 10731 10773 10804 10822 11150 11193 11633 11644 11755 12402 12856 13695 13697 13813 13928 13963 14110 14131 14198 14573 14696 14824 14878 15659 15747 15983 16689 17708 17775 18893 18942 19025 19142 19271 19417 19570 19766 19844 19905 21484 22807 22878 22966 22976 23375 23647 23661 24114 24379 25870 27581 27712 27826 27863 27893 27909 27917 27956 30106 30482 30490 30665 30709 31830 31976 32087 32562 32674 35699 36379 36536 40652 40823 48856https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/142/79?format=asciiInfrareddefaultJ/ApJS/142/79/atlasCombined table from original tablesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameHR (<V/50>) or HD (<III/135>) namemeta.id;meta.maincharSpTypeMK spectral typesrc.spTypecharEWP3? Paschen {gamma} (1.0942{mu}m) equivalent width0.1nmspect.line.eqWidthfloatnullableu_EWP3Uncertainty flag on EWpgammameta.code.errorcharf_EWP3[ab] Problem on EWpgamma (1)meta.codecharEWCN0-0? Equivalent width on CN 0-0 index (10960-11040 {AA})0.1nmmeta.code;spect.line.eqWidthfloatnullableu_EWCN0-0? rms uncertainty on EWCN0-0meta.code.errorcharEW1.16um? Equivalent width on 1.16{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.16um? rms uncertainty on EW1.16ummeta.code.errorcharf_EW1.16um[ab] Problem on EW1.16 (1)meta.codecharEW1.17um? Equivalent width on 1.17{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.17um? rms uncertainty on EW1.17ummeta.code.errorcharf_EW1.17um[ab] Problem on EW1.17 (1)meta.codecharEWMgI? Equivalent width on MgI (1.1831{mu}m) line0.1nmspect.line.eqWidthfloatnullableu_EWMgI? rms uncertainty on EWMgImeta.code.errorcharf_EWMgI[ab] Problem on EWMgI (1)meta.codecharEW1.19um? Equivalent width on 1.19{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.19um? rms uncertainty on EW1.19ummeta.code.errorcharf_EW1.19um[ab] Problem on EW1.19 (1)meta.codecharEW1.20um? Equivalent width on 1.20{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.20um? rms uncertainty on EW1.20ummeta.code.errorcharf_EW1.20um[ab] Problem on EW1.20 (1)meta.codecharEWSiI? Equivalent width on SiI (1.2034{mu}m) line0.1nmspect.line.eqWidthfloatnullableu_EWSiI? rms uncertainty on EWSiImeta.code.errorcharf_EWSiI[ab] Problem on EWSiI (1)meta.codecharEW1.21um? Equivalent width on 1.21{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.21um? rms uncertainty on EW1.21ummeta.code.errorcharf_EW1.21um[ab] Problem on EW1.21 (1)meta.codecharEW1.28um? Equivalent width on 1.28{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.28um? rms uncertainty on EW1.28ummeta.code.errorcharf_EW1.28um[b] Problem on EW1.28 (1)meta.codecharEW1.31um? Equivalent width on 1.31{mu}m blend0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.31um? rms uncertainty on EW1.31ummeta.code.errorcharf_EW1.31um[ab] Problem on EW1.31 (1)meta.codecharEW1.33um? Equivalent width on 1.33{mu}m blend (2)0.1nmspect.line.eqWidth;em.IR.Jfloatnullableu_EW1.33umrms uncertainty on EW1.33ummeta.code.errorcharTeffEffective temperatureKphys.temperature.effectiveintDateDate of observationtime.epoch;obsnullable[Fe/H]? Metallicity from Cayrel de Strobel et al., 1997, Cat. <III/200>log(Sun)phys.abund.ZfloatnullableSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main