J/A+AS/147/253ivo://CDS.VizieR/J/A+AS/147/253CDSNahar S.N.2008-03-19T21:49:58Z2008-03-19T22:47:20ZCDS support team

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

cds-question@unistra.fratomic-physicsThe Breit-Pauli R-matrix method developed under the Iron Project has been used to obtain extensive sets of oscillator strengths and transition probabilities for dipole allowed and intercombination fine structure transitions in carbon like ions, Ar XIII and Fe XXI. The complete set consists of 1274 fine structure bound energy levels and 198259 oscillator strengths for Ar XIII, and 1611 bound levels and 300079 oscillator strengths for Fe XXI. These correspond to levels of total angular momenta of 0<=J<=7 of even and odd parities formed from total spin of 2S+1=5, 3, 1, and orbital angular momenta 0<=L<=9 with n<=10, 0<=l<=9 for each ion. The relativistic effects are included in the Breit-Pauli approximation. The close coupling wavefunction expansion for each ion is represented by the lowest 15 fine structure levels of target configurations, 2s^2^2p, 2s2p^2^ and 2p^3^. The energy levels are identified spectroscopically using a newly developed identification procedure. The procedure also makes a correspondence between the fine structure energy levels and LS terms. This provides the check for completeness of the calculated levels. Comparison is made of the present energies and the f-values with the available observed and theoretical values. Present transition probabilities agree very well with the relativistic atomic structure calculations of Mendoza et al. for the intercombination transitions, 2s2p^3^(^5^S{deg}_2_) - 2s^2^2p^2^(^3^P_1,2_,^1^D_2_). This further indicates that the importance of the neglected Breit interaction decreases with ion charge and constrains the uncertainty in the present calculations to within 15% even for the weak transitions.2000A&AS..147..253Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/147/253CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/103/273 : IRON Project II IR collision strengths of C-like ionsJ/A+A/283/319 : IRON Project III B-like ionsJ/A+AS/108/1 : IRON Project V Collision strengths of O-like ionsJ/A+A/293/953 : IRON Project VI Fe II collision strengthsJ/A+A/293/967 : IRON Project VII Fe II radiative transitionsJ/A+AS/109/193 : IRON Project VIII Electron excitation of Ti-like ionsJ/A+AS/119/509 : IRON Project XVII Radiative transition in Fe IIIJ/A+AS/119/523 : IRON Project XVIII Electron impact for Fe IIIJ/A+AS/120/361 : IRON Project XIX Fe II radiative transitionsJ/A+AS/123/159 : IRON Project XXII C and O radiative ratesJ/A+AS/123/575 : IRON Project XXIII Fe XXII excitation rate coefficientsJ/A+AS/126/373 : IRON Project XXVII Fe IV collision strengthsJ/A+AS/131/499 : IRON Project XXIX Boron isoelectronic sequenceJ/A+AS/131/153 : IRON Project XXXI Fe XII electron excitationJ/A+AS/135/347 : IRON Project XXXV Fe XXIV & Fe XXV oscillator strengthsJ/A+AS/136/395 : IRON Project XXXVII Fe VI collision strengthsJ/A+AS/137/165 : IRON Project XXXVIII Fe XV fine-structure transitionsJ/A+AS/143/483 : IRON Project XLII Fe XXI electron impact excitationJ/A+AS/144/141 : IRON Project XLIII Fe V transition probabilitiesJ/A+AS/147/111 : IRON Project XLIV Fe VI trans. prob. & line ratioJ/A+A/365/268 : IRON Project XLVII Ni III electron impact excitationJ/A+A/372/1078 : IRON Project XLIX Fe XX electron impact excitationJ/A+A/372/1083 : IRON Project L Fe XIX electron impact excitationJ/A+A/394/753 : IRON Project LI Fe IX electron impact excitationJ/A+A/408/789 : IRON Project LIII Fe XVII transition probabilitiesJ/A+A/413/779 : IRON Project LIV Fe XX transition probabilitiesJ/A+A/420/763 : IRON Project LV Ni II electron impact excitationJ/A+A/437/345 : IRON Project LIX Fe IV transition probabilitiesJ/A+A/448/779 : IRON Project LXI Fe IV radiative transitionsJ/A+A/457/721 : IRON Project LXII Fe XVIII allowed and forbidden trans.J/A+A/466/763 : IRON Project LXIII Fe^19+^ electron impact excitationTable 1: Target levels of Ar XIV (Fe XXII) in theNotes: Ar XIV: Z = 18, No. of core electrons = 5Fe XXII: Z = 26, No. of core electrons = 5https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/147/253https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/147/253http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/147/253https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/147/253https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/147/253http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/147/253GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+AS/147/253/table2aAr XIII identified fine structure energy levels, ordered in J{pi}NlvNumber of levels (1)meta.numberintJTotal angular momentum of the lower levelphys.angMomentum;phys.atmol.levelintpi[eo] Spin symmetry (even/odd)phys.atmol.paritycharLevelLevelmeta.id;phys.atmol.levelintTTarget (config SLpi Jt) of the levelphys.atmol.configurationcharnlPrincipal and orbital quantum numbers of the outer electronphys.atmol.configurationcharEEnergyRyphys.energydoubleEQN? Effective Quantum Number (2)phys.atmol.qnfloatnullableTermsPossible LS terms of the energy levelphys.energy;phys.atmol.levelcharJ/A+AS/147/253/table3aFe XXI identified fine structure energy levels, ordered in J{pi}NlvNumber of levels (1)meta.numberintJTotal angular momentum of the lower levelphys.angMomentum;phys.atmol.levelintpi[eo] Spin symmetry (even/odd)phys.atmol.paritycharLevelLevelmeta.id;phys.atmol.levelintTTarget (config SLpi Jt) of the levelphys.atmol.configurationcharnlPrincipal and orbital quantum numbers of the outer electronphys.atmol.configurationcharEEnergyRyphys.energydoubleEQN? Effective Quantum Number (2)phys.atmol.qnfloatnullableTermsPossible LS terms of the energy levelphys.energy;phys.atmol.levelcharJ/A+AS/147/253/table5aAr XIII table of fine structure levelsgpCombined J and {pi} designation: (2J+1)*10 for even states, (2J+1)*10+1 for odd statesmeta.id.associntnullableJTotal angular momentumphys.angMomentumfloatp[eo] Parityphys.atmol.paritychariiiiLevel position for (Jp)meta.idintE(Ry)Energy of levelRyphys.energy;phys.atmol.leveldoubleConfConfigurationphys.atmol.configuration;instr.setupcharLSLS term of energy level (1)phys.atmol.configurationcharJ/A+AS/147/253/table6aFe XXI table of fine structure levels XXIp[eo] Parityphys.atmol.paritychariiiiLevel position for (Jp)meta.idintJTotal angular momentumphys.angMomentumfloatgpCombined J and {pi} designation: (2J+1)*10 for even states, (2J+1)*10+1 for odd statesmeta.id.associntnullableE(Ry)Energy of levelRyphys.energy;phys.atmol.leveldoubleConfConfigurationphys.atmol.configuration;instr.setupcharLSLS term of energy level (1)phys.atmol.configurationcharJ/A+AS/147/253/table7bAr XIII oscillator strengths ordered in energy and grouped according to components of same LS multipletsAA values**-1phys.atmol.transProbdoubleCiConfigurations of the level i (1)phys.atmol.configurationcharCfConfigurations of the level jphys.atmol.configurationcharslpiInitial core levelphys.atmol.configurationcharslpfFinal core levelphys.atmol.configurationcharJiLower J-valuephys.atmol.qnintNi? Energy level index of lower J-valuephys.energy;phys.atmol.levelintnullableJfUpper J-valuephys.atmol.qnintNf? Energy level index of upper J-valuephys.energy;phys.atmol.levelintnullableEi? Initial energyRyphys.energydoublenullableEfFinal energyRyphys.energydoubleff valuestat.valuedoubleJ/A+AS/147/253/table8bFe XXI oscillator strengths ordered in energy and grouped according to components of same LS multipletsJfUpper J-valuephys.atmol.qnintCiConfigurations of the level i (1)phys.atmol.configurationcharCfConfigurations of the level jphys.atmol.configurationcharslpiInitial core levelphys.atmol.configurationcharslpfFinal core levelphys.atmol.configurationcharJiLower J-valuephys.atmol.qnintNi? Energy level index of lower J-valuephys.energy;phys.atmol.levelintnullableNf? Energy level index of upper J-valuephys.energy;phys.atmol.levelintnullableEi? Initial energyRyphys.energydoublenullableEfFinal energyRyphys.energydoubleff valuestat.valuedoubleAA values**-1phys.atmol.transProbdoubleJ/A+AS/147/253/ar13*Transitions for Ar XIIIgi(2J+1) quantum number of lower statephys.atmol.oscStrengthintpi[0,1] Parity of lower state (0=even, 1=odd)phys.atmol.parityintgk(2J+1) quantum number of upper statephys.atmol.oscStrengthintpk[0,1] Parity of upper state (0=even, 1=odd)phys.atmol.parityintIiIndex number of upper state (1)meta.idintIkIndex number of lower state (1)meta.idintlambdaTransition wavelength0.1nmem.wl;phys.atmol.transitiondoubleindexedEiEnergy of lower state (1)Ryphys.energy;phys.atmol.leveldoubleEkEnergy of upper state (1)Ryphys.energy;phys.atmol.leveldoublefLOscillator strength of the transitionphys.atmol.wOscStrength;phys.atmol.transitiondoubleSLine strengthspect.line.intensitydoubleAkiTransition probabilitys**-1phys.atmol.transProbdoubleJ/A+AS/147/253/fe21*Transitions for FeXXIgi(2J+1) quantum number of lower statephys.atmol.oscStrengthintpi[0,1] Parity of lower state (0=even, 1=odd)phys.atmol.parityintgk(2J+1) quantum number of upper statephys.atmol.oscStrengthintpk[0,1] Parity of upper state (0=even, 1=odd)phys.atmol.parityintIiIndex number of upper state (1)meta.idintIkIndex number of lower state (1)meta.idintlambdaTransition wavelength0.1nmem.wl;phys.atmol.transitiondoubleindexedEiEnergy of lower state (1)Ryphys.energy;phys.atmol.leveldoubleEkEnergy of upper state (1)Ryphys.energy;phys.atmol.leveldoublefLOscillator strength of the transitionphys.atmol.wOscStrength;phys.atmol.transitiondoubleSLine strengthspect.line.intensitydoubleAkiTransition probabilitys**-1phys.atmol.transProbdouble