J/ApJS/169/472ivo://CDS.VizieR/J/ApJS/169/472doi:10.26093/cds/vizier.21690472CDSTanabashi A.Hirao T.Amano T.Bernath P.F.2009-07-19T16:58:31Z2009-07-19T16:51:39ZCDS support team

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

cds-question@unistra.frinterstellar-mediumatomic-physicsspectroscopyThe C2 Swan system (d ^3^{Pi}_g_-a ^3^{Pi}_u_) was observed in emission for the {Delta}v=-3 to {Delta}v=+2 sequences in the 14000-24000cm^-1^ spectral range using a Fourier transform spectrometer. We carried out a global simultaneous fit by including a wide range of vibrational states. A total of 34 bands with v'=0-10 and v"=0-9 were rotationally assigned. Numerous discrepancies were found in the assignments and in the measured transition wavenumbers between the new measurements and previous results. Most of the measured transition wavenumbers and their assignments for relatively low-v bands agreed with published data. On the contrary, for high-v bands our line positions and assignments disagreed with the tabulated literature values. In particular, the lines of six bands involving the levels with v'=4, 5, and 6 are almost completely different from the previous work. Major sources of the disagreement are thought to be line congestion and perturbations found in these bands. From the analysis, perturbations for v'=0, 1, 2, 4, 6, 8, 9, and 10 in the d ^3^{Pi}_g_ state were identified. A study of these rotational perturbations suggest that some of them are likely caused by interactions with high-v levels of the b ^3^{Sigma}^-^_g_ state.2007ApJS..169..472Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/169/472CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/169/472https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/169/472http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/169/472https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/169/472https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/169/472http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/169/472GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJS/169/472/table7Transition Wavenumbers of the Swan SystemrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintv'The v' vibrational levelphys.atmol.qnintv"The v" vibrational levelphys.atmol.qnintJ"The J" rotational levelphys.atmol.qnintP3(J)? The P3 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_P3(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_P3(J)? The (O-C) value for P3(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_P3(J)Categorization of P3(J) (4)meta.notecharR3(J)? The R3 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_R3(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_R3(J)? The (O-C) value for R3(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_R3(J)Categorization of R3(J) (4)meta.notecharP2(J)? The P2 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_P2(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_P2(J)? The (O-C) value for P2(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_P2(J)Categorization of P2(J) (4)meta.notecharR2(J)? The R2 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_R2(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_R2(J)? The (O-C) value for R2(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_R2(J)Categorization of R2(J) (4)meta.notecharP1(J)? The P1 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_P1(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_P1(J)? The (O-C) value for P1(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_P1(J)Categorization of P1(J) (4)meta.notecharR1(J)? The R1 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_R1(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_R1(J)? The (O-C) value for R1(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_R1(J)Categorization of R1(J) (4)meta.notecharQ2(J)? The Q2 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_Q2(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_Q2(J)? The (O-C) value for Q2(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_Q2(J)Categorization of Q2(J) (4)meta.notecharQ1(J)? The Q1 branch vacuum wavenumber (1)cm**-1phys.energy;phys.atmol.transitiondoublenullabler_Q1(J)Transition from from Tanabashi & Amano (2)meta.ref;pos.framecharD_Q1(J)? The (O-C) value for Q1(J) (3)0.001cm**-1stat.value;stat.fit.omcintnullablen_Q1(J)Categorization of Q1(J) (4)meta.notechar