J/ApJ/835/189ivo://CDS.VizieR/J/ApJ/835/189doi:10.26093/cds/vizier.18350189CDSLee J.W.Hong K.Kim S.-L.Koo J.-R.2017-11-06T13:56:55Z2017-10-04T13:16:20ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsphotometryWe report the Kepler photometry of KIC 11401845 displaying multiperiodic pulsations, superimposed on binary effects. Light-curve synthesis shows that the binary star is a short-period detached system with a very low mass ratio of q=0.070 and filling factors of F_1_=45% and F_2_=99%. Multiple-frequency analyses were applied to the light residuals after subtracting the synthetic eclipsing curve from the observed data. We detected 23 frequencies with signal-to-noise ratios larger than 4.0, of which the orbital harmonics (f_4_, f_6_, f_9_, f_15_) in the low-frequency domain may originate from tidally excited modes. For the high frequencies of 13.7-23.8day^-1^, the period ratios and pulsation constants are in the ranges of P_pul_/P_orb_=0.020-0.034 and Q=0.018-0.031days, respectively. These values and the position on the Hertzsprung-Russell diagram demonstrate that the primary component is a {delta} Sct pulsating star. We examined the eclipse timing variation of KIC 11401845 from the pulsation-subtracted data and found a delay of 56+/-17s in the arrival times of the secondary eclipses relative to the primary eclipses. A possible explanation of the time shift may be some combination of a light-travel-time delay of about 34s and a very small eccentricity of e.cos{omega}<0.0002. This result represents the first measurement of the Romer delay in noncompact binaries.2017ApJ...835..189Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/835/189CatalogResearchIsServedByTAP VizieR generic servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)J/AJ/106/2096 : Limb-darkening coefficients in binaries (Van Hamme 1993)J/MNRAS/373/435 : Angular momentum evolution of Algol binariesJ/other/A+ARV/18.67 : Accurate masses and radii of normal stars (Torres+, 2010)J/ApJ/753/101 : Kepler eclipse timings of KIC 9472174 (Barlow+, 2012)J/A+A/557/A79 : Spectra of KIC10661783 (Lehmann+, 2013)J/AJ/147/104 : Photometry and velocities of 1SWASP J093010A and B (Koo+, 2014)J/AJ/148/37 : Long-term photometric behavior of V404 Lyr (Lee+, 2014)J/ApJ/812/46 : Transit metric for Q1-Q17 Kepler candidates (Thompson+, 2015)J/AJ/151/68 : Kepler Mission. VII. Eclipsing binaries in DR3 (Kirk+, 2016)J/ApJ/833/170 : Spots parameters for LCs of the EB star KIC 6048106 (Lee, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/835/189https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/835/189http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/835/189https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/835/189https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/835/189http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/835/189GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/ApJ/835/189/table3Eclipse timings measured from both datasets including and removing the pulsationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintO-BJDObserved Barycentric Julian Datedtime.epochdoublee_O-BJD[0.0001/0.003] Error in O-BJDdstat.errordoubleO-(O-C1)[-0.0009/0.002] The (O-C) residual for observed datadstat.fit.residualdoubleEpochEpochtime.epochfloatMinMinimum type ("I": orbital phase 0.0 or "II": orbital phase 0.5)time.epochcharPS-BJDPulsation-Subtracted Barycentric Julian Datedtime.epochdoublee_PS-BJD[0.0001/0.0008] Error in PS-BJDdstat.errordoublePS-(O-C2)[-0.0008/0.0008] The (O-C) residual for Pulsation-Subtracted datadstat.fit.residualdouble