J/A+A/367/236ivo://CDS.VizieR/J/A+A/367/236doi:10.26093/cds/vizier.33670236CDSLehmann H.Harmanec P.Aerts CBozic H.Eenens P.Hildebrandt G.,Holmgren D.Mathias P.Scholz G.Slechta M.Yang S.2001-02-13T06:21:45Z2001-02-13T07:21:42ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsorbitsspectroscopic-binary-starsradial-velocityAn analysis of 1236 new electronic spectra of the eclipsing binary EN Lac from four observatories and of 994 radial velocities (RV hereafter) from photographic spectra, published by several authors, has allowed us to disentangle the RV variations due to orbital motion and due to pulsations of the star. New, accurate orbital elements as well as precise values of the three pulsation periods, already known from the previous studies, were derived. The accuracy of the orbital solution has been substantially improved after the observed RV changes were properly prewhitened for the short-term oscillations. For the first time we present evidence of line profile variations of EN Lac. They correlate well with the short-term RV variations but they alternatively occur with periods corresponding either to the fundamental periods or to the first harmonics of the short-term RV variations.2001A&A...367..236Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/367/236CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/304/406 : Photometry and radial velocities of 16 Lac (Chapellier+, 1995)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/367/236https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/367/236http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/367/236https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/367/236https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/367/236http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/367/236GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/367/236/table3New radial velocities of EN LacrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHJDHeliocentric Julian Datedtime.epochdoubleRVRadial velocitykm/sphys.veloc;pos.heliocentricfloatSourceSee Note (1)meta.codeint