J/A+A/639/A23ivo://CDS.VizieR/J/A+A/639/A23doi:10.26093/cds/vizier.36390023CDSPienkowski D.Galan C.Tomov T.Gazeas K.Wychudzki P.,Mikolajewski M.Kubicki D.Staels B.Zola S.Pakonska P.Debski B.,Kundera T.Ogloza W.Drozdz M.Baran A.Winiarski M.Siwak M.,Dimitrov D.Kjurkchieva D.Marchev D.Arminski A.Miller I.,Kolaczkowski Z.Mozdzierski D.Zahajkiewicz E.Brus P.Pigulski A.,Smela T.Conseil E.Boyd D.Conidis G.J.Plauchu-Frayn I.Heras T.A.,Kardasis E.Biskupski M.Kneip R.Hambalek L.Pribulla T.Kundra E.,Nedoroscik J.Lopatovsky J.Garai Z.Rodriguez D.Kaminski T.,Dubois F.Logie L.Blanco A.CapetilloKankiewicz P.Swierczynski E.,Martignoni M.Sergey I.Kare Trandem Qvam J.Semkov E.Ibryamov S.,Peneva S.Gonzalez Carballo J.-L.Ribeiro J.Dean S.Apostolovska G.,Donchev Z.Corp L.McDonald P.Rodriguez M.Sanchez A.Wiersema K.,Conseil E.Menke J.Sergey I.Richardson N.2020-10-06T09:03:17Z2020-07-02T07:49:17ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsccd-photometryinfrared-photometryvisible-astronomybroad-band-photometryh-alpha-photometryh-beta-photometryspectroscopybe-starsEE Cep is one of few eclipsing binary systems with a dark, dusty disk around an invisible object similar to epsilon Aur. The system is characterized by grey and asymmetric eclipses every 5.6yr, with a significant variation in their photometric depth, ranging from ~0.5mag to ~2.0mag. The main aim of the observational campaign of the EE Cep eclipse in 2014 was to test the model of disk precession (Galan et al. 2012). We expected that this eclipse would be one of the deepest with a depth of ~2m.mag. We collected multicolor observations from almost 30 instruments located in Europe and North America. This photometric data covers 243 nights during and around the eclipse. We also analyse the low- and high- resolution spectra from several instruments. The eclipse was shallow with a depth of 0m.71 in V-band. The multicolor photometry illustrates small color changes during the eclipse with a total amplitude of order ~+0.15mag in B-I color index. The linear ephemeris for this system is updated by including new times of minima, measured from the three most recent eclipses at epochs E=9, 10 and 11. New spectroscopic observations were acquired, covering orbital phases around the eclipse, which were not observed in the past and increased the data sample, filling some gaps and giving a better insight into the evolution of the H{alpha} and NaI spectral line profiles during the primary eclipse. The eclipse of EE Cep in 2014 was shallower than expected 0.71mag instead of ~2.0mag. This means that our model of disk precession needs revision.2020A&A...639A..23Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/639/A23CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/639/A23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/639/A23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/639/A23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/639/A23https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/639/A23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/639/A23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap2.367228618189496e-19 6.118840631666147e-19OpticalInfrareddefaultJ/A+A/639/A23/tablea2pUBV(RI)_C and BVRc photometry, EE Cep eclipse 2014 (Tables A2 A4 A5 A6 A7 A14 A15 A18 A20 A21 A22 A24)Band3[V] Band (V)instr.bandpasscharBand5[Ic ] Band (Ic)instr.bandpasschardBmag? Differential B-band photometry (1)magphot.mag;arith.difffloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTabTable number (A2 A4 A5 A6 A7 A14 A15 A18 A20 A21 A22 A24) (G1)meta.id;meta.maincharJDJulian date (integer part)dtime.epochintJD+U? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullableUmag? B-band photometrymagphot.mag;em.opt.UfloatnullabledUmag? Differential B-band photometry (1)magphot.mag;arith.difffloatnullableBand1[U] Band (U)instr.bandpasscharJD+B? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullableBmag? B-band photometrymagphot.mag;em.opt.BfloatnullableBand2[B] Band (B)instr.bandpasscharJD+V? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullableVmag? V-band photometrymagphot.mag;em.opt.VfloatnullabledVmag? Differential V-band photometry (1)magphot.mag;arith.difffloatnullableJD+Rc? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullableRcmag? Rc-band photometrymagphot.mag;em.opt.RfloatnullabledRcmag? Differential Rc-band photometry (1)magphot.mag;arith.difffloatnullableBand4[Rc ] Band (Rc)instr.bandpasscharJD+Ic? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullableIcmag? Ic-band photometrymagphot.mag;em.opt.IfloatnullabledIcmag? Differential Ic-band photometry (1)magphot.mag;arith.difffloatnullableJD+BRc? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledBRcmag? Differential BRc-band photometry (1)magphot.mag;arith.difffloatnullableBand6[BRc ] Band (BRc)instr.bandpasscharJD+BV? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledBVmag? Differential BV-band photometry (1)magphot.mag;arith.difffloatnullableBand7[BV ] Band (BV)instr.bandpasscharJD+VRc? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledVRcmag? Differential VRc-band photometry (1)magphot.mag;arith.difffloatnullableBand8[VRc ] Band (VRc)instr.bandpasscharObsObserver name(s)meta.id;obs.observercharJ/A+A/639/A23/tablea3pUBVRI, BVI, BV(RI)_C and UBVR photometry, EE Cep eclipse 2014 (Tables A3, A8, A13, A17, A19)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTabTable number (A3 A8 A13 A17 A19) (G1)meta.id;meta.maincharJDHeliocentric Julian date (integer part) (HJD for A3 and A13)dtime.epochintJD+U? Fractional part of HJDdmeta.id.part;time.epoch;arith.ratiodoublenullabledUmag? Differential U-band photometry (1)magphot.mag;arith.difffloatnullableBand1[U] Band (U)instr.bandpasscharJD+B? Fractional part of HJDdmeta.id.part;time.epoch;arith.ratiodoublenullabledBmag? Differential B-band photometry (1)magphot.mag;arith.difffloatnullableBand2[B] Band (B)instr.bandpasscharJD+V? Fractional part of HJDdmeta.id.part;time.epoch;arith.ratiodoublenullabledVmag? Differential V-band photometry (1)magphot.mag;arith.difffloatnullableBand3[V] Band (V)instr.bandpasscharJD+R? Fractional part of HJDdmeta.id.part;time.epoch;arith.ratiodoublenullabledRmag? Differential R-band photometry (1)magphot.mag;arith.difffloatnullableBand4[Rc ] Band (Rc)instr.bandpasscharJD+I? Fractional part of HJDdmeta.id.part;time.epoch;arith.ratiodoublenullabledImag? Differential I-band photometry (1)magphot.mag;arith.difffloatnullableBand5[Ic ] Band (Ic)instr.bandpasscharJD+BRc? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledBRcmag? Differential BRc-band photometry (1)magphot.mag;arith.difffloatnullableBand6[BRc ] Band (BRc)instr.bandpasscharJD+BV? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledBVmag? Differential BV-band photometrymagphot.mag;arith.difffloatnullableBand7[BV ] Band (BV)instr.bandpasscharJD+VRc? Fractional part of JDdmeta.id.part;time.epoch;arith.ratiodoublenullabledVRcmag? Differential VRc-band photometrymagphot.mag;arith.difffloatnullableBand8[VRc ] Band (VRc)instr.bandpasscharObsObserver name(s)meta.id;obs.observercharJ/A+A/639/A23/tablea29UBVRI(RI)_C photometry, EE Cep eclipse 2014 ALLObsObserver name(s)meta.id;obs.observerchare_dmagrms uncertainty on dmagmagstat.error;phot.magfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTab[A1 A29] Note on observations (G1)meta.codecharJDJulian date (integer part) (HJD for tablea1.dat)dtime.epochdoubledmagDifferential photometry in Band (1)magphot.mag;arith.difffloatNNumber of points that were used to averagemeta.numberintBand[UBVRIc ] Band for differential magnitudeinstr.bandpasscharJ/A+A/639/A23/tablea1BV(RI)c photometry, EE Cep eclipse 2014, Athens Obs., 0.4 m Reflector telescoperecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTab[A1 A29] Note on observations (G1)meta.codecharJDJulian date (integer part) (HJD for tablea1.dat)dtime.epochdoubledmagDifferential photometry in Band (1)magphot.mag;arith.difffloate_dmagrms uncertainty on dmagmagstat.error;phot.magfloatNNumber of points that were used to averagemeta.numberintBand[UBVRIc ] Band for differential magnitudeinstr.bandpasscharObsObserver name(s)meta.id;obs.observercharJ/A+A/639/A23/tablea9pUBV(RI)_C and JHK photometry, EE Cep eclipse 2014, (Tables A9 A10 A11 A12 A16 A23 A25 A26 A27 A28)ObsObserver name(s)meta.id;obs.observercharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTabTable number (A9 A10 A11 A12 A16 A23 A25 A26 A27 A28) (G1)meta.id;meta.maincharJDJulian date (HJD for A10)dtime.epochdoublemagMagnitude in Bandmagphot.magfloatdmagDifferential magnitude in Band (1)magphot.mag;arith.difffloatBandBand (U, B, V, Ic, Rc, J, H, K)instr.bandpasscharJ/A+A/639/A23/tablea30Spectra obtained during and around of the EE Cep eclipses in 2014 (fits files available for download)RResolving powerspect.resolutionintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateDate of observationtime.epochnullableUTUniversal Timetime.epochnullableHJDHeliocentric Julian datedtime.epochdoubleInstrTelescope and instrumentinstrcharRangeSpectral rangeinstr.bandwidthcharspShow the sepctrummeta.ref.urlcharFileNameName of FITS spectrum file in subdirectory spmeta.id;meta.fitschar