J/A+A/506/143ivo://CDS.VizieR/J/A+A/506/143doi:10.26093/cds/vizier.35060143CDSNeiner C.Gutierrez-Soto J.Baudin F.de Batz B.Fremat Y.Huat A.-L.,Floquet M.Hubert A.-M.Leroy B.Diago P.D.Poretti E.Carrier F.,Rainer M.Catala C.Thizy O.Buil C.Ribeiro J.Andrade L.Emilio M.,Espinosa Lara F.Fabregat J.Janot-Pacheco E.Martayan C.Semaan T.,Suso J.Baglin A.Michel E.Samadi R.2017-06-20T13:16:24Z2009-12-30T17:37:31ZCDS support team

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

cds-question@unistra.frearly-type-starsbe-starsspectroscopypolarimetryHD181231 is a B5IVe star, which has been observed with the CoRoT satellite during ~5 consecutive months and simultaneously from the ground in spectroscopy and spectropolarimetry. By analysing these data, we aim to detect and characterize as many pulsation frequencies as possible, to search for the presence of beating effects possibly at the origin of the Be phenomenon. Our results will also provide a basis for seismic modelling. The fundamental parameters of the star are determined from spectral fitting and from the study of the circumstellar emission. The CoRoT photometric data and ground-based spectroscopy are analysed using several Fourier techniques: Clean-ng, Pasper, and Tisaft, as well as a time-frequency technique. A search for a magnetic field is performed by applying the LSD technique to the spectropolarimetric data.2009A&A...506..143Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/506/143CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/corot : CoRoT observation log (CoRoT, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/506/143https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/506/143http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/506/143https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/506/143https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/506/143http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/506/143GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/506/143/table5*Frequencies detected in the CoRoT data of HD 181231 with the TiSAFT, Clean-NG, and Pasper methods.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFreqT? TISAFT frequencyd**-1em.freqfloatnullableFreqC? CLEAN-NG frequencyd**-1em.freqfloatnullableFreqP? PASPER frequencyd**-1em.freqfloatnullableFreqFrequencyuHzem.freqfloatAmpAmplitude calculated with Amphimmagphot.mag;meta.modelleddoublee_Amprms uncertainty on Ampmmagstat.errordoublePhasePhase (0/2pi) calculated with Amphiradtime.phase;meta.modelledfloate_Phaserms uncertainty on Phaseradstat.error;time.phasefloatFlag[a-t] Association flag (1)meta.code.errorcharIntInterpretation of frequencymeta.note