J/A+A/622/A127ivo://CDS.VizieR/J/A+A/622/A127doi:10.26093/cds/vizier.36220127CDSUbachs W.Salumbides E.J.Murphy M.T.Abgrall H.Roueff E.2019-03-11T08:07:29Z2019-02-07T09:50:39ZCDS support team

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

cds-question@unistra.fratomic-physicsAbsorption lines of H_2_ and HD molecules observed at high redshift in the line of sight towards quasars are a test ground to search for variation of the proton-to-electron mass ratio {mu}. For this purpose results from astronomical observations are compared with a compilation of molecular data of the highest accuracy, obtained in laboratory studies as well as in first principles calculations. A comprehensive line list is compiled for H_2_ and HD absorption lines in the Lyman (B^1^{Sigma}^+^_u_-X^1^{Sigma}^+^_g_) and Werner (C^1^{Pi}_u_-X^1^{Sigma}^+^_g_) bands systems up to the Lyman cutoff at 912{AA}. Molecular parameters listed for each line i are the transition wavelength {lambda}_i_, the line oscillator strength f_i_, the radiative damping parameter of the excited state {Gamma}_{i}, and the sensitivity coefficient K_i_ for a variation of the proton-to-electron mass ratio. The transition wavelengths {lambda}_i_ for the H_2_ and HD molecules are determined by a variety of advanced high-precision spectroscopic experiments involving narrowband vacuum ultraviolet lasers, Fourier-transform spectrometers and synchrotron radiation sources. Results for the line oscillator strengths f_i_, damping parameters {Gamma}_i_ and sensitivity coefficients K_i_ are obtained in theoretical quantum chemical calculations. A new list of molecular data is compiled for future analyses of cold clouds of hydrogen absorbers, specifically for studies of {mu}-variation from quasar data. The list is applied in a refit of quasar absorption spectra of B0642-5038 and J1237+0647 yielding constraints on a variation of the proton-to-electron mass ratio {Delta}{mu}/{mu} consistent with previous analyses.2019A&A...622A.127Uhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/622/A127CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/141/297 : H_2_ total transition probability (Abgrall+, 2000)J/A+A/445/361 : HD total transition probability (Abgrall+Roueff, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/622/A127https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/622/A127http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/622/A127https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/622/A127https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/622/A127http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/622/A127GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/622/A127/table1H2 data for Lyman (B-X) transitionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransLine label (1)meta.id;phys.atmol.transitioncharlambdaLaboratory wavelengthAem.wldoublee_lambdaUncertainty in laboratory wavelengthAstat.errordoubler_lambdaReference for wavelength (2)meta.ref;pos.framecharfOscillator strengthphys.atmol.oscStrengthdoubleGammaNatural damping coefficients**-1phys.atmol.transProbdoubleKSensitivity coefficientinstr.sensitivitydoubleJ/A+A/622/A127/table2H2 data for Werner (C-X) transitionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransLine label (1)meta.id;phys.atmol.transitioncharlambdaLaboratory wavelengthAem.wldoublee_lambdaUncertainty in laboratory wavelengthAstat.errordoubler_lambdaReference for wavelength (2)meta.ref;pos.framecharfOscillator strengthphys.atmol.oscStrengthdoubleGammaNatural damping coefficients**-1phys.atmol.transProbdoubleKSensitivity coefficientinstr.sensitivitydoubleJ/A+A/622/A127/table3HD data for Lyman and Werner transitionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTransLine label (1)meta.id;phys.atmol.transitioncharlambdaLaboratory wavelengthAem.wldoublee_lambdaUncertainty in laboratory wavelengthAstat.errordoubler_lambdaReference for wavelength (2)meta.ref;pos.framecharfOscillator strengthphys.atmol.oscStrengthdoubleGammaNatural damping coefficients**-1phys.atmol.transProbdoubleKSensitivity coefficientinstr.sensitivitydouble