J/AJ/142/155ivo://CDS.VizieR/J/AJ/142/155doi:10.26093/cds/vizier.51420155CDSWang L.Macri L.M.Krisciunas K.Wang L.Ashley M.C.B.Cui X.,Feng L.-L.Gong X.Lawrence J.S.Liu Q.Luong-Van D.Pennypacker C.R.,Shang Z.Storey J.W.V.Yang H.Yang J.Yuan X.York D.G.Zhou X.,Zhu Z.Zhu Z.2017-10-16T14:58:18Z2013-03-12T16:31:57ZCDS support team

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

cds-question@unistra.frvariable-starsvisible-astronomysloan-photometryDome A on the Antarctic plateau is likely one of the best observing sites on Earth thanks to the excellent atmospheric conditions present at the site during the long polar winter night. We present high-cadence time-series aperture photometry of 10000 stars with i<14.5mag located in a 23deg^2^ region centered on the south celestial pole. The photometry was obtained with one of the CSTAR telescopes during 128 days of the 2008 Antarctic winter. We used this photometric data set to derive site statistics for Dome A and to search for variable stars. Thanks to the nearly uninterrupted synoptic coverage, we found six times as many variables as previous surveys with similar magnitude limits. We detected 157 variable stars, of which 55% were unclassified, 27% were likely binaries, and 17% were likely pulsating stars. The latter category includes {delta} Scuti, {gamma} Doradus, and RR Lyrae variables. One variable may be a transiting exoplanet.2011AJ....142..155Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/142/155CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/gcvs : General Catalogue of Variable Stars (Samus+ 2007-2012)I/305 : The Guide Star Catalog, Version 2.3.2 (GSC2.3) (STScI, 2006)J/ApJS/188/473 : Chandra variable guide star catalog (Nichols+, 2010)J/A+A/499/967 : Long-term monitoring of {gamma} Dor stars (Cuypers+, 2009)J/ApJ/598/597 : Frequency analysis of RR Lyrae (Alcock+, 2003)J/AJ/115/1016 : M31B eclipsing binaries and Cepheids (Kaluzny+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/142/155https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/142/155http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/142/155https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/142/155https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/142/155http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/142/155GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/142/155/table3 (Variable stars observed)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/142/155/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/142/155/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/142/155/table3?GETtext/xml+votable180.050000true167.8316667-87.300250.0055555555555555565/8192 9216 10240 11264 6/32772 32773 32774 32776 32778 36868 36869 36872 36874 40964 40966 40968 40970 45060 45061 45062 45064https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/142/155?format=asciiOpticaldefaultJ/AJ/142/155/table3Variable stars observedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[572/136863] CSTAR identificationmeta.id;meta.mainintprimaryNfNumber of frequencies, and link to Fourier analysis parameters (table 6)meta.numberintnullableGSC2.3Identification from Guide Star Catalog (1)meta.idcharRAJ2000Hour of Right Ascension from GSC2.3 (J2000) (2)pos.eq.ra;meta.mainDEJ2000Degree of Declination from GSC2.3 (J2000)pos.eq.dec;meta.mainimagCSTAR mean i band magnitudemagphot.mag;em.opt.IfloatPer? Main perioddtime.period;meta.maindoublenullablen_PerSource of period determination (3)meta.notecharT0? Epoch of minimum light (JD-2454500) (4)dtime.epochfloatnullableTypeTentative classification of variable type (5)meta.code;src.varcharSimbadSimbad column added by the CDSmeta.refcharJ/AJ/142/155/table6Fourier analysis of variable star candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[572/133742] CSTAR identificationmeta.id;meta.mainintFreqFrequency; in units of cycle/dayd**-1em.freqdoubleAmp[0.23/281.91] amplitude of the peakmmagsrc.var.amplitude;stat.maxfloatS/NSignal-to-noise ratio of each peakstat.snr;stat.maxfloatNotesRelations between primary and other frequencies (1)meta.notechar