J/A+A/569/A15ivo://CDS.VizieR/J/A+A/569/A15doi:10.26093/cds/vizier.35690015CDSOstensen R.H.Telting J.H.Reed M.D.Baran A.S.Nemeth P.Kiaeerad F.2017-06-20T13:16:30Z2014-09-10T09:30:31ZCDS support team

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

cds-question@unistra.frsubdwarf-starsspectroscopyradial-velocityThe subdwarf-B pulsator, KIC10553698A, is one of 16 such objects observed with one-minute sampling for most of the duration of the Kepler Mission. Like most of these stars, it displays a rich g-mode pulsation spectrum with several clear multiplets that maintain regular frequency splitting. We identify these pulsation modes as components of rotationally split multiplets in a star rotating with a period of ~41d. From 162 clearly significant periodicities, we are able to identify 156 as likely components of l=1 or l=2 multiplets. For the first time we are able to detect l=1 modes that interpose in the asymptotic period sequences and that provide a clear indication of mode trapping in a stratified envelope, as predicted by theoretical models. A clear signal is also present in the Kepler photometry at 3.387d. Spectroscopic observations reveal a radial-velocity amplitude of 64.8km/s. We find that the radial-velocity variations and the photometric signal have phase and amplitude that are perfectly consistent with a Doppler-beaming effect and conclude that the unseen companion, KIC10553698B, must be a white dwarf most likely with a mass close to 0.6M_{sun}_.2014A&A...569A..15Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/569/A15CatalogResearchIsServedByTAP VizieR generic servicerelated-toB/corot : CoRoT observation log Release 13 (CoRoT, 2009-2014)J/A+A/506/111 : Frequency analysis of HD180642 (V1449 Aql) (Degroote+, 2009)J/A+A/506/143 : Pulsations of HD 181231 (Neiner+, 2009)J/A+A/506/471 : Frequency analysis of CoRoT B stars (Degroote+, 2009)J/A+A/506/79 : Asteroseismic analysis of HD 174936 (Garcia Hernandez+ 2009)J/ApJ/718/L97 : Early asteroseismic results from Kepler (Van Grootel+, 2010)J/A+A/525/A23 : Frequency analysis of HD 49434 (Mathias+, 2011)J/MNRAS/412/1210 : Kepler asteroseismic targets (Molenda-Zakowicz+, 2011)J/ApJ/749/152 : Asteroseismic analysis of 22 solar-type stars (Mathur+ 2012)J/A+A/551/A12 : HD 48977 frequency analysis (Thoul+, 2013)J/A+A/553/A127 : Frequency tables of KIC4931738 & KIC6352430 (Papics+, 2013)J/A+A/556/A56 : KIC 11285625: detected frequencies (Debosscher+, 2013)J/A+A/556/A87 : CoRoT-100866999 frequency analysis (Chapellier+, 2013)J/A+A/559/A63 : HD174966 photometric frequencies (Garcia Hernandez+, 2013)J/A+A/565/A55 : CoRoT 105906206 frequencies analysis (da Silva+, 2014)J/ApJS/210/1 : Asteroseismic study of solar-type stars (Chaplin+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/569/A15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/569/A15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/569/A15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/569/A15https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/569/A15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/569/A15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/569/A15/peaksFrequencies, periods, and amplitudes (table B1)ID[1/162] Frequency identifier = sequence numbermeta.id;meta.mainintprimaryFreq[46/4072] Frequency in microHzuHzem.freq;src.vardoublePerPeriod (Freq^-1^)stime.perioddoubleAmpFourier amplitude in parts-per-million(10-6)src.var.amplitudefloatl[1|2- ] Mode ID l = 1, 2, 1|2, or - for no IDstat.fit.paramcharn1Order n for l=1 ID, or t for trappedstat.fit.paramcharn2Order n for l=2 ID, or t for trappedstat.fit.paramcharStateState stability flagmeta.notecharJ/A+A/569/A15/rvsRadial velocity data (table A1)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTimeHJD of mid exposure (HJD-2450000)dtime.epoch;obs.exposuredoubleRVobs[-28/119] Radial velocity (observed)km/sspect.dopplerVelocfloate_RVobs[3.9/24.1] Error on radial velocity measurementkm/sstat.errorfloatObsObservatory ID (KPNO, NOT or WHT)meta.id;instr.obstychar