J/ApJS/228/17ivo://CDS.VizieR/J/ApJS/228/17doi:10.26093/cds/vizier.22280017CDSBasar G.Al-Labady N.Ozdalgic B.Guzelcimen F.Er A.Ozturk I.K.,Ak T.Bilir S.Tamanis M.Ferber R.Kroger S.2017-06-08T12:28:29Z2017-04-28T09:48:51ZCDS support team

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

cds-question@unistra.fratomic-physicsspectroscopyultraviolet-astronomyFourier Transform spectra of Holmium (Ho) in the UV spectral range from 31530 to 25000cm^-1^ (317 to 400nm) have been investigated, particularly focusing on the ionic lines. The distinction between the different degrees of ionization (I, II, and III) is based on differences in signal-to-noise ratios from two Ho spectra, which have been measured with different buffer gases, i.e., neon and argon. Based on 106 known Ho II and 126 known Ho III energy levels, 97 lines could be classified as transitions of singly ionized Ho and 9 lines could be classified as transitions of doubly ionized Ho. Of the 97 Ho II lines, 6 have not been listed in the extant literature. Another 215 lines have been assigned to Ho II, though they could not be classified on the basis of the known energy levels.2017ApJS..228...17Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/228/17CatalogResearchIsServedByTAP VizieR generic servicerelated-toVI/74 : Atomic Energy Level Data (NIST 1993)J/ApJS/228/16 : Spectra of a Holmium in the NUV. I. Ho I. (Al-Labady+, 2017)J/ApJS/182/51 : Transition probabilities of rare earth elements (Lawler+, 2009)http://www.nist.gov/pml/atomic-spectra-database/ : NIST atomic spectra databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/228/17https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/228/17http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/228/17https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/228/17https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/228/17http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/228/17GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVdefaultJ/ApJS/228/17/table1List of classified and unclassified Ho II lines in the measured FT spectra from 31530cm^-1^ to 25000cm^-1^recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[318/400] Center-of-gravity wavelength in air (G1)nmem.wl;phys.atmol.transitiondoubleSig[25010.5/31367.5] Center-of-gravity transition wavenumber in vacuum (G1)cm**-1phys.energy;phys.atmol.transitiondoubleSNR-Ar[1/512] Signal-to-noise ratio from the FT spectrum with Arstat.snrintSNR-Ne[1/186] Signal-to-noise ratio from the FT spectrum with Nestat.snrintR[0.09/6] Relation between S/N in Ho-Ar & in Ho-Ne spectrumstat.snrfloatCommComments (G2)meta.notecharW[100/3250] Line widths; 1milli-Kayser=0.001cm^-1^0.001cm**-1spect.line.widthintIndIndicator of hyperfine structure (G3)meta.codecharDW[-2433/3045]? Total separation (only for table 1) (G4)0.001cm**-1spect.line.widthintnullableDs[-0.04/0.2]? Difference between the wavenumber in vacuum and the energy difference of the levelscm**-1em.wavenumber;arith.difffloatnullableEl[0/16749.3]? Level energy of lower levelcm**-1phys.energy;phys.atmol.leveldoublenullableJl[4/8]? J quantum number of lower levelmeta.id;meta.mainfloatnullableEu[25481.7/43755.8]? Level energy of upper levelcm**-1phys.energy;phys.atmol.leveldoublenullableJu[4/9]? J value of upper levelstat.value;phys.atmol.levelfloatnullableJ/ApJS/228/17/table2List of classified and unclassified Ho III lines in the measured FT spectra from 31530cm^-1^ to 25000cm^-1^recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[318/400] Center-of-gravity wavelength in air (G1)nmem.wl;phys.atmol.transitiondoubleSig[25010.5/31367.5] Center-of-gravity transition wavenumber in vacuum (G1)cm**-1phys.energy;phys.atmol.transitiondoubleSNR-Ar[1/512] Signal-to-noise ratio from the FT spectrum with Arstat.snrintSNR-Ne[1/186] Signal-to-noise ratio from the FT spectrum with Nestat.snrintR[0.09/6] Relation between S/N in Ho-Ar & in Ho-Ne spectrumstat.snrfloatCommComments (G2)meta.notecharW[100/3250] Line widths; 1milli-Kayser=0.001cm^-1^0.001cm**-1spect.line.widthintIndIndicator of hyperfine structure (G3)meta.codecharDs[-0.04/0.2]? Difference between the wavenumber in vacuum and the energy difference of the levelscm**-1em.wavenumber;arith.difffloatnullableEl[0/16749.3]? Level energy of lower levelcm**-1phys.energy;phys.atmol.leveldoublenullableJl[4/8]? J quantum number of lower levelmeta.id;meta.mainfloatnullableEu[25481.7/43755.8]? Level energy of upper levelcm**-1phys.energy;phys.atmol.leveldoublenullableJu[4/9]? J value of upper levelstat.value;phys.atmol.levelfloatnullableJ/ApJS/228/17/table3List of lines in the measured FT spectra from 31530cm^-1^ to 25000cm^-1^, which are assigned to Ho I or Ho IICommComments (G2)meta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[319/400.1] Center-of-gravity wavelength in air (G1)nmem.wl;phys.atmol.transitiondoubleSig[24992.3/31338.4] Center-of-gravity transition wavenumber in vacuum (G1)cm**-1phys.energy;phys.atmol.transitiondoubleSNR-Ar[2/58] Signal-to-noise ratio from the FT spectrum with Arstat.snrintSNR-Ne[2/86] Signal-to-noise ratio from the FT spectrum with Nestat.snrintR[0.3/1.8] Relation between S/N in Ho-Ar & in Ho-Ne spectrumstat.snrfloatW[100/2240] Line widths; 1milli-Kayser=0.001cm^-1^0.001cm**-1spect.line.widthintIndIndicator of hyperfine structure (G3)meta.codecharJ/ApJS/228/17/table4List of lines in the measured FT spectra from 31530cm^-1^ to 25000cm^-1^, which are assigned to Ho I or Ho IIIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[319/400.1] Center-of-gravity wavelength in air (G1)nmem.wl;phys.atmol.transitiondoubleSig[24992.3/31338.4] Center-of-gravity transition wavenumber in vacuum (G1)cm**-1phys.energy;phys.atmol.transitiondoubleSNR-Ar[2/58] Signal-to-noise ratio from the FT spectrum with Arstat.snrintSNR-Ne[2/86] Signal-to-noise ratio from the FT spectrum with Nestat.snrintR[0.3/1.8] Relation between S/N in Ho-Ar & in Ho-Ne spectrumstat.snrfloatCommComments (G2)meta.notecharW[100/2240] Line widths; 1milli-Kayser=0.001cm^-1^0.001cm**-1spect.line.widthintIndIndicator of hyperfine structure (G3)meta.codecharJ/ApJS/228/17/table5Complete list of all 1033 Ho lines in the measured FT spectra from 31530cm^-1^ to 25000cm^-1^recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlamAir[317/400.1] Center-of-gravity wavelength in air (G1)nmem.wl;phys.atmol.transitiondoubleSig[24992.3/31529.4] Center-of-gravity transition wavenumber in vacuum (G1)cm**-1phys.energy;phys.atmol.transitiondoubleSNR-Ar[1/1770] Signal-to-noise ratio from the FT spectrum with Arstat.snrintSNR-Ne[1/1165] Signal-to-noise ratio from the FT spectrum with Nestat.snrintR[0.09/6] Relation between S/N in Ho-Ar & in Ho-Ne spectrumstat.snrfloatCommComments (G2)meta.notecharAssignAssignment to degree of ionizationsrc.classcharW[100/3250] Line widths; 1milli-Kayser=0.001cm^-1^0.001cm**-1spect.line.widthintIndIndicator of hyperfine structure (G3)meta.codecharDW[-2433/3045]? Total separation (G4)0.001cm**-1spect.line.widthintnullableDs[-0.3/0.3]? Difference between the wavenumber in vacuum and the energy difference of the levelscm**-1em.wavenumber;arith.difffloatnullableEl[0/16749.3]? Level energy of lower levelcm**-1phys.energy;phys.atmol.leveldoublenullableJl[4/10.5]? J quantum number of lower levelmeta.id;meta.mainfloatnullableEu[25272.6/43755.8]? Level energy of upper levelcm**-1phys.energy;phys.atmol.leveldoublenullableJu[3.5/9]? J value of upper levelstat.value;phys.atmol.levelfloatnullable