J/A+A/572/A99ivo://CDS.VizieR/J/A+A/572/A99doi:10.26093/cds/vizier.35720099CDSBaglio M.C.Mainetti D.D'Avanzo P.Campana S.Covino S.Russell D.M.,Shahbaz T.2022-04-19T15:14:32Z2014-12-04T08:57:04ZCDS support team

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

cds-question@unistra.frx-ray-binary-starsspectroscopypolarimetryWe present a polarimetric and spectroscopic study of the persistent ultra-compact X-ray binary 4U 0614+091 aimed at searching for the emission of a relativistic particle jet and at unveiling the orbital period Porb of the system. We obtained r-band polarimetric observations with the Telescopio Nazionale Galileo (TNG) equipped with the PAOLO polarimeter and with the Nordic Optical Telescope (NOT) equipped with the ALFOSC instrument, covering ~2h and ~0.5h observations, respectively. We carried out low resolution spectroscopy of the system using the ESO Very Large Telescope equipped with FORS1 for ~1.5h (16 spectra covering the range 4300-8000{AA}).2014A&A...572A..99Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/572/A99CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/572/A99https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/572/A99http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/572/A99https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/572/A99https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/572/A99http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/572/A99GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/572/A99/table1Stokes parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the object in analysis (or "Weighted mean" in last line)meta.id;meta.maincharQStokes parameter Q%phys.polarization.stokes;arith.ratiofloate_QStokes parameter Q error%stat.errorfloatUStokes parameter U%phys.polarization.stokes;arith.ratiofloate_UStokes parameter U error%stat.error;pos.cartesian.xfloatJ/A+A/572/A99/table3Results of the sinusoidal fit of the equivalent width variations for the two selected linesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength of the observed line0.1nmem.wl;spect.lineintPerPeriod of the oscillationmintime.periodfloate_PerError of the periodminstat.errorfloatchi2Reduced {chi}^2^ of the sinusoidal fitstat.fit.param;meta.modelledfloatCL[1/46] Confidence level of the fit%stat.fit.param;arith.ratio;meta.modelledfloatJ/A+A/572/A99/ewEquivalent widths of the CII 724nm linerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeTime of the observationshtime.epochdoubleEWEquivalent width of the selected line0.1nmspect.line.eqWidthfloate_EWErrors of the equivalent width measurements0.1nmstat.error;spect.line.eqWidthfloatJ/A+A/572/A99/spectrumAverage spectrum of 4U 0614+091 (440-755nm)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[4401/7552] Wavelength {lambda} ({AA})0.1nmem.wlfloatFluxFlux at {lambda} (erg/cm^2^/w2{AA})cW.m**-2.nm**-1phot.fluxdouble