J/A+AS/118/495ivo://CDS.VizieR/J/A+AS/118/495CDSAndrillat Y.Jaschek M.Jaschek C.1997-12-09T18:14:05Z1997-12-09T19:14:02ZCDS support team

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

cds-question@unistra.frline-intensitiesinfrared-astronomyspectroscopyWe analyse spectroscopic CCD material obtained at the Haute Provence Observatory. We provide line identifications and equivalent width measurements in the wavelength region 3700-8790A. Over 300 emission features are identified and a comparison of our results with those of other authors is provided, as well as a table of all elements which have been identified in the spectrum of the object. The pattern of elements present is analogous to that of B-type stars, but some exceptions are noted, such as the absence of C, Al and Mn. We review the present knowledge of the spectrum variability of MWC 349A. The observations indicate th at the equivalent widths of the lines of many elements vary by factors of up to two. We also provide a list of diffuse interstellar features observed. The latter lead to an average (B-V) excess of about two magnitudes, which is less than what is expected for an object having an interstellar extinction of 10-11 magnitudes.1996A&AS..118..495Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/118/495CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+AS/117/281 : B[e] stars. I. HD 51585 (= OY Gem)J/A+AS/120/99 : B[e] stars. III. MWC 645J/A+AS/124/441 : B[e] stars. IV. MWC 142J/A+AS/128/475 : B[e] stars. V. MWC 158J/A+AS/131/479 : B[e] stars. VI. MWC 297https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/118/495https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/118/495http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/118/495https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/118/495https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/118/495http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/118/495GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/A+AS/118/495/table2Emission lines measured in MWC 349recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpectSpectrum (see table1)meta.notecharLambdaWavelength0.1nmem.wldoublen_Lambda[&] An & indicates probably affected by atmospheric absorptionmeta.notecharEW? Equivalent width of the emission line0.1nmspect.line.eqWidthfloatn_EWNote on EW (1)meta.notecharIdentLine identification of the order element ionization stage and multiplet number (2)meta.idchar