J/A+A/420/673ivo://CDS.VizieR/J/A+A/420/673doi:10.26093/cds/vizier.34200673CDSNishimura M.Sadakane K.Kato K.Takeda Y.Mathys G.2004-06-28T21:01:56Z2004-06-28T21:00:20ZCDS support team

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

cds-question@unistra.frbp-starschemically-peculiar-starsA spectrum synthesis analysis for photospheric lines in the magnetic B star HR 5049 is presented, based on a high quality spectrogram obtained with the EMMI spectrograph attached to the NTT at ESO. It is found that light elements such as He, C and O are under-abundant. One of the most notable features is the deficiency of He by more than -2.0dex. Co and Cl are over-abundant by +3.5dex and +1.9dex, respectively. Other iron peak elements are over-abundant ranging from +0.47dex (Ti II) to +1.94 dex (Cr I). For rare earth elements, the lines of once-ionized species are generally weak, while the third spectra (especially those of Pr and Nd) are very prominent. Although rare earth elements show significant over-abundances ranging from +3.0dex to as large as +4.0dex, Ba has the solar abundance. The Nd-Pr abundance difference, which shows an apparent decreasing trend with increasing effective temperature among CP stars, is found to be unusually small in HR 5049.2004A&A...420..673Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/420/673CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/407/631 : Catalogue of stellar effective magnetic fields (Bychkov+ 2003)J/A+AS/118/231 : Velocities + rotation of CP stars (Levato+, 1996)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/420/673https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/420/673http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/420/673https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/420/673https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/420/673http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/420/673GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/420/673/table2Analyses of individual atomic linesIonIon designationphys.atmol.ionizationcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength0.1nmem.wlfloatChi? Excitation potentialeVphys.energy;phys.atmol.excitationfloatnullableloggf? Oscillator strengthphys.atmol.wOscStrengthfloatnullabler_loggfReference for loggf (1)meta.refcharl_logN/H[<= ] Limit flag on logN/Hmeta.code.errorcharlogN/H? Elemental abundance logN/Hphys.abundfloatnullableRemarkRemarks (2)meta.notechar