J/AZh/85/409ivo://CDS.VizieR/J/AZh/85/409CDSKaritskaya E.A.Bochkarev N.G.Bondar A.V.Galazutdinov G.A.Lee B.-K.,Musaev F.A.Sapar A.A.Shimansky V.V.2009-01-23T20:18:06Z2009-01-23T21:13:04ZCDS support team

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

cds-question@unistra.frx-ray-binary-starsspectroscopyThe results of Cyg X-1 = HDE 226868/V1357 Cyg optical spectral monitoring in 2002-2004 are discussed. Spectral observations were carried out on Peak Terskol Observatory (Kabardino-Balkaria, Russia, resolution R=45000 and 13000) and Bohyunsan Optical Astronomy Observatory (BOAO, Korea, R=30000, 44000). Each spectrum covers the main part of optical spectral range. During 33 observational nights 75 echelle spectra were obtained in the times of the "soft" and "hard" states of Cyg X-1. The X-ray influence on spectral line profiles was studied. The RXTE/ASM data were used for this purpose. The X-ray flare resulted in strong variations of Halpha and HeII4686{AA} emission component profiles during night. This behaviour we connect with variations of ionization structure of matter in the system. Line profile variations with the orbital phase were observed. The spectral atlas for Cyg X-1 was constructed. The contented line identification was done. There were revealed 172 lines and blends which belong to 12 chemical elements: H, He, C, N, O, Ne, Mg, Al, Si, S, Fe, Zn. The HDE 226868 spectral classification as ON star was confirmed.2008AZh....85..409Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AZh/85/409CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/PAZh/26/27 : Variability of Cyg X-1 in 1995-1996 (Karitskaya+, 2000)J/AZh/78/408 : Variability of Cyg X-1 in 1994-1998 (Karitskaya+, 2001)J/A+A/407/1039 : X-ray power spectra of Cygnus X-1 (Pottschmidt+, 2003)J/A+A/452/975 : Temporal variability of Cygnus X-1 (Axelsson+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AZh/85/409https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AZh/85/409http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AZh/85/409https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AZh/85/409https://vizier.iucaa.in/viz-bin/votable?-source=J/AZh/85/409http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AZh/85/409GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/AZh/85/409/table1Log of observations of V1357 CygJDJulian datedtime.epochdoublePhaseOrbital phasetime.phasefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqRunning number of night observationsmeta.numberintDateObservation datetime.epoch;obsnullableInstInstrument used (1)instr.setupcharNspTotal number of spectrameta.numberintPh147Phase of the 147-days periodtime.phasefloatPh294Phase of the 294-days periodtime.phasefloatFXX-ray fluxes according to 2-12keV RXTE/ASM datact/sphot.flux;em.X-rayintu_FXUncertainty flag on FXmeta.code.errorcharXrayX-ray spectrum state (2)meta.codecharJ/AZh/85/409/table2Stellar lines identified in the spectrum of V1357 CygrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLambdaO? Observed wavelength0.1nmem.wlfloatnullableElElementphys.atmol.elementcharLambdaLLaboratory wavelength0.1nmem.wl;phys.atmol.transitiondouble