J/A+A/522/A103ivo://CDS.VizieR/J/A+A/522/A103doi:10.26093/cds/vizier.35220103CDSWei H.G.Shi J.R.Zhao G.Liang Z.T.2010-12-21T20:18:51Z2010-11-09T14:08:31ZCDS support team

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

cds-question@unistra.fratomic-physicsAtomic data for K-shell transitions are essential for modeling the K absorption lines, which have been observed in the spectra of active galaxies by high-resolution X-ray observatories, e.g. XMM, Chandra, and Suzaku. These accurate atomic data are also needed for line identifications and spectroscopic diagnostic of plasmas in laboratory generated by laser or beam-foil method.The atomic code Flexible Atomic Code (FAC) has been used to calculate these data. Relativistic effects and configuration interactions are taken into account in calculations.The K-shell transitions among the configurations of 1s^2^2s^2^, 1s^2^2s2p, 1s^2^2p^2^, 1s^2^2sn'l', 1s^2^2pn'l', 1s2s^2^2p, 1s2s2p^2^, 1s2p^3^, 1s2s2pn'l' and 1s2p^2^n'l', n'<=4, l'<=n' for beryllium-like Si XI have been calculated. The K-shell energy levels, wavelengths, radiative rates and oscillator strengths for Si XI are reported. In order to assess the accuracy of current data, comparison between our results with former experiments and other theoretical works have been made.2010A&A...522A.103Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/522/A103CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/129/155 : Si XI + Si XIII lines Stark broadening (Dimitrijevic+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/522/A103https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/522/A103http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/522/A103https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/522/A103https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/522/A103http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/522/A103GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/522/A103/table1Target levels of Si XI and their threshold energies (in eV)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIndex[1/40] Indexmeta.idintConfConfigurationsphys.atmol.configurationcharJTotal angular momentumphys.angMomentumintp[oe] Parityphys.atmol.paritycharFAC1Level energies computed by 40 levels involved with FAC codeeVphys.energy;phys.atmol.leveldoubleFAC2Level energies computed by 680 levels involved with FAC codeeVphys.energy;phys.atmol.leveldoubleHFR1Level energies computed by 40 levels involved with HFR code from Palmeri et al. (2008ApJS..177..408P)eVphys.energy;phys.atmol.leveldoubleNIST? Level energies compiled in NIST database (Ralchenko et al. 2000) (1)eVphys.energy;phys.atmol.leveldoublenullableJ/A+A/522/A103/table3The K-shell level energies in Si XIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIndex[1/680] Indexmeta.idintConfConfigurationsphys.atmol.configurationcharJTotal angular momentumphys.angMomentumintp[oe] Parityphys.atmol.paritycharEnergyLevel energy from present 680 level calculations by FAC codeeVphys.energy;phys.atmol.leveldoubleJ/A+A/522/A103/table4Wavelengths, radiative rates and oscillator strengths for transitions in Si XIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintu[99/680] Upper levelmeta.idintl[1/98] Lower levelmeta.idintWaveTansition wavelength0.1nmem.wldoubleARadiative rates**-1phys.atmol.transProbdoublef(lu)Oscillator strengthsphys.atmol.oscStrengthdouble