J/ApJS/119/207ivo://CDS.VizieR/J/ApJS/119/207doi:10.26093/cds/vizier.21190207CDSHolberg J.B.Barstow M.A.Sion E.M.2017-09-29T09:04:02Z2005-08-18T13:01:11ZCDS support team

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

cds-question@unistra.frstar-atlasesspectroscopyultraviolet-astronomywhite-dwarf-starsThis paper summarizes the results obtained from a comprehensive analysis of all of the SWP echelle spectra of the white dwarf stars contained in the IUE Final Archive. A total of 209 NEWSIPS spectra of 55 degenerate stars of various types have been systematically reduced and analyzed. These include, in addition to conventional white dwarfs, several examples of the hot planetary nebula central stars such as NGC 246, which represent the initial stages of He-rich degenerate evolution. A representative summary of the stellar, circumstellar, and interstellar features found to be present in these spectra is presented. For 33 of the 55 stars, multiple spectra of sufficient quality exist so that co-added spectra with improved signal-to-noise ratio can be constructed. Much previously unrecognized detail and many new features are evident in these data. In addition, it was found necessary to apply several corrections to the NEWSIPS extracted spectra. These corrections, involving the wavelength scale and flux uncertainty vector, are described.1998ApJS..119..207Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/119/207CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/147/145 : IUE low-dispersion spectra of white dwarfs (Holberg+, 2003)http://vega.lpl.arizona.edu/newsips :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/119/207https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/119/207http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/119/207https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/119/207https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/119/207http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/119/207GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/119/207/table1 (White dwarf parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/119/207/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/119/207/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/119/207/table1?GETtext/xml+votable180.050000true1.88458333.2910280.005555555555555556Cone search capability for table J/ApJS/119/207/table6 (Interstellar parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/119/207/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/119/207/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/119/207/table6?GETtext/xml+votable180.050000true1.884733.28920.005555555555555556IUE6/311 743 1283 1805 1890 2809 4067 6705 9336 10386 10969 11176 11220 11242 11984 12111 13013 13182 14667 15351 15391 15462 16046 16886 17790 18334 19970 20423 20940 21128 21416 22709 23101 23103 23789 23947 24813 25585 26678 26851 27049 28026 28538 28559 30406 30754 34652 34676 35573 39612 42115 42760 45380 45782 46385 46612https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/119/207?format=asciiUVdefaultJ/ApJS/119/207/table1White dwarf parametersVmagV magnitudemagfloatl_TeffLimit flag on Teffcharr_WD? ReferencesintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD designationcharprimaryNameOther NamecharTypeWhite dwarf typecharTeffEffective temperatureKintlogg? Surface gravitylog(cm.s**-2)floatnullablenewsipsAvailable IUE NEWSIPS data for this white dwarfcharWDcatdetails from the McCook and Sion Catalog of White Dwarfs (III/235)charSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJS/119/207/table2Log of IUE SWP echelle spectraExplengthExposure lengthsintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD designationcharSWPSWP NumberintAper[LS] Aperture (Large or Small)charDateObservation datenullableCContinuum data number levelintBBackground data number levelintShift? Wavelength shift (1)0.1pmfloatnullableObsObserver namecharStatus[BWZ NS] Status of the spectrum (2)charIUEDetails (and spectrum) of this IUE observationcharJ/ApJS/119/207/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numberintBibCodeBibCodecharAutAuthor's namecharComCommentscharJ/ApJS/119/207/table4Photospheric linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD NumbercharIonSpeciescharLambdaLabLaboratory wavelength0.1nmdoubleLambdaObsObserved wavelength0.1nmdoubleVelDoppler velocitykm/sfloate_Velrms uncertainty on Velkm/sfloatEWEquivalent widthnmfloate_EWrms uncertainty on EWnmfloatJ/ApJS/119/207/table4bPhotospheric lines average velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD Numberchar<Vel>Mean Doppler velocitykm/sfloate_<Vel>rms uncertainty on <Vel>km/sfloatJ/ApJS/119/207/table5Circumstellar linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD NumbercharIonSpeciescharLambdaLabLaboratory wavelength0.1nmdoubleLambdaObsObserved wavelength0.1nmdoubleVelDoppler velocitykm/sfloate_Velrms uncertainty on Velkm/sfloatEWEquivalent widthnmfloate_EWrms uncertainty on EWnmfloatJ/ApJS/119/207/table5bCircumstellar lines average velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD Numberchar<Vel>Mean Doppler velocitykm/sfloate_<Vel>rms uncertainty on <Vel>km/sfloatJ/ApJS/119/207/table6Interstellar parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD numbercharDistDistancepcfloatGLONGalactic longitudedegGLATGalactic latitudedegfloatVelVelocitykm/sfloatn_Vel[abc] Note on Vel (1)chare_Velrms uncertainty on Velkm/sfloatl_logNHLimit flag on logNHcharlogNH? Hydrogen column densitylog(cm**-2)floatnullablee_logNH? rms uncertainty on logNHlog(cm**-2)floatnullableJ/ApJS/119/207/table7Interstellar linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD NumbercharIonSpeciescharLambdaLabLaboratory wavelength0.1nmdoubleLambdaObsObserved wavelength0.1nmdoubleVelDoppler velocitykm/sfloate_Velrms uncertainty on Velkm/sfloatEWEquivalent widthnmfloate_EWrms uncertainty on EWnmfloatJ/ApJS/119/207/table7bInterstellar lines average velocitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_WD[H He] H or He-rich degeneratecharWDWD Numberchar<Vel>Mean Doppler velocitykm/sfloate_<Vel>rms uncertainty on <Vel>km/sfloatJ/ApJS/119/207/spList of coadded spectra in "sp" subdirectoryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWD numbercharFITSfileCoadded spectrum in "sp" subdirectorychar