J/AJ/146/97ivo://CDS.VizieR/J/AJ/146/97doi:10.26093/cds/vizier.51460097CDSPakhomov Y.V.Zhao G.2014-06-29T06:43:35Z2014-01-03T11:51:33ZCDS support team

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

cds-question@unistra.fratomic-physicsspectroscopyWe present the wavelength calibration of the Hamilton echelle spectrograph (the Lick observatory). The main problem of the calibration arises from the fact that thorium lines are absent in the spectrum of ThAr hollow-cathode lamp now under the operation. On the other hand, numerous unknown strong lines are present in the spectrum. These lines was identified with titanium. We estimate the temperature of the lamp gas which permits us to calculate the intensities of the lines, and to select a large number of relevant TiI and TiII lines. The titanium line list for the Lick hallow-cathode lamp is presented. The wavelength calibration using this line list was made with accuracy about 0.006{AA}.2013AJ....146...97Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/146/97CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/404/1321 : TiII in Milky way and Magellanic clouds (Welty+, 2010)J/A+A/468/1115 : Thorium and argon lines in the visible (Lovis+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/146/97https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/146/97http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/146/97https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/146/97https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/146/97http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/146/97GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AJ/146/97/table2List of Ti I and Ti II linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[3000/11974] Wavelength0.1nmem.wldoubleIntRelative intensityspect.line.intensity;arith.ratiofloatIonIon (TiI or TiII)phys.atmol.ionStagecharJ/AJ/146/97/tiar*Line list of TiAr lamprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[3000/11974] Wavelength0.1nmem.wldoubleIonIon (Ar, ArI, ArII, TiI or TiII)phys.atmol.ionStagechar