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<ri:Resource created="2012-06-17T21:27:42Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" xmlns:cs="http://www.ivoa.net/xml/ConeSearch/v1.0" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.ivoa.net/xml/ConeSearch/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/ConeSearch.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>TAOS variable stars</title><shortName>J/AJ/139/2026</shortName><identifier>ivo://CDS.VizieR/J/AJ/139/2026</identifier><altIdentifier>doi:10.26093/cds/vizier.51392026</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Mondal S.</name></creator><creator><name>Lin C.C.</name></creator><creator><name>Chen W.P.</name></creator><creator><name>Zhang Z.-W.</name></creator><creator><name>Alcock C.</name></creator><creator><name>Axelrod T.,Bianco F.B.</name></creator><creator><name>Byun Y.-I.</name></creator><creator><name>Coehlo N.K.</name></creator><creator><name>Cook K.H.</name></creator><creator><name>Dave R.</name></creator><creator><name>Kim D.-W.,King S.-K.</name></creator><creator><name>Lee T.</name></creator><creator><name>Lehner M.J.</name></creator><creator><name>Lin H.-C.</name></creator><creator><name>Marshall S.L.</name></creator><creator><name>Protopapas P.,Rice J.A.</name></creator><creator><name>Schwamb M.E.</name></creator><creator><name>Wang J.-H.</name></creator><creator><name>Wang S.-Y.</name></creator><creator><name>Wen C.-Y.</name></creator><date role="Updated">2017-11-28T13:20:59Z</date><date role="Created">2012-06-17T21:27:42Z</date><contact><name>CDS support team</name><address>CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France</address><email>cds-question@unistra.fr</email></contact></curation><content><subject>variable-stars</subject><subject>photometry</subject><description>The Taiwanese-American Occultation Survey (TAOS) project has collected more than a billion photometric measurements since 2005 January. These sky survey data-covering timescales from a fraction of a second to a few hundred days-are a useful source to study stellar variability. A total of 167 star fields, mostly along the ecliptic plane, have been selected for photometric monitoring with the TAOS telescopes. This paper presents our initial analysis of a search for periodic variable stars from the time-series TAOS data on one particular TAOS field, No. 151 (RA=17:30:6.7, DE=27:27:30, J2000), which had been observed over 47 epochs in 2005. A total of 81 candidate variables are identified in the 3deg^2^ field, with magnitudes in the range 8&lt;R&lt;16. On the basis of the periodicity and shape of the light curves, 29 variables, 15 of which were previously unknown, are classified as RR Lyrae, Cepheid, delta Scuti, SX Phonencis, semi-regular, and eclipsing binaries.</description><source format="bibcode">2010AJ....139.2026M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/139/2026</referenceURL><type>Catalog</type><contentLevel>Research</contentLevel><relationship><relationshipType>IsServedBy</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/TAP">TAP VizieR generic service</relatedResource></relationship><relationship><relationshipType>IsServedBy</relationshipType><relatedResource>Conesearch service</relatedResource></relationship><relationship><relationshipType>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/I/284">I/284 : The USNO-B1.0 Catalog (Monet+ 2003)</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface xsi:type="vr:WebBrowser"><accessURL use="full">https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/139/2026</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/139/2026</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/139/2026</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/139/2026</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/139/2026</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/139/2026</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface></capability><capability standardID="ivo://ivoa.net/std/TAP#aux"><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://tapvizier.cds.unistra.fr/TAPVizieR/tap</accessURL></interface></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/AJ/139/2026/table3 (Catalog for variable stars)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/139/2026/table3?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/139/2026/table3?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/139/2026/table3?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>0.57525306</ra><dec>27.85633111</dec><sr>0.005555555555555556</sr></testQuery></capability><capability xsi:type="cs:ConeSearch" standardID="ivo://ivoa.net/std/ConeSearch"><description>Cone search capability for table J/AJ/139/2026/table2 (Previously unknown variables)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/139/2026/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/139/2026/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/139/2026/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>262.052325</ra><dec>27.2035169</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>5/8162 6/20276 20278 20284 20285 32479 32672</spatial><spectral>8.650015785639275e-20 1.7003137259100215e-19</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/139/2026?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/AJ/139/2026/table1</name><description>Known variable stars</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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Amplitude in V (or R, see n_Vamp) band</description><unit>mag</unit><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_Vamp</name><description>[R1 ] when R1 instead of V in magnitude</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column><column><name>mag.u</name><description>? Upper value of TAOS magnitude interval</description><unit>mag</unit><ucd>phot.mag;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>mag.l</name><description>? Lower value of TAOS magnitude interval</description><unit>mag</unit><ucd>phot.mag;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Nf</name><description>? Number of observed frames</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>e_mag</name><description>? rms in TAOS magnitude</description><unit>mag</unit><ucd>stat.error;phot.mag</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>SpT</name><description>MK spectral type</description><ucd>src.spType</ucd><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column><column><name>Per</name><description>? Known period</description><unit>s</unit><ucd>time.period</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>l_PerLS</name><description>[~] Limit flag on PerLS</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>PerLS</name><description>? Period determined with Least Squares method</description><unit>s</unit><ucd>time.period</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>l_Per04</name><description>[~] Limit flag on PerLS</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Per04</name><description>? Period determined with Period04 method</description><unit>s</unit><ucd>time.period</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>Amp</name><description>? Semi-amplitude of variation</description><unit>mag</unit><ucd>arith.rate;src.var.amplitude</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><ucd>meta.ref</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column></table><table><name>J/AJ/139/2026/table3</name><description>Catalog for variable stars</description><column><name>Ksmag</name><description>2MASS Ks magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>USNOB1</name><description>Display USNO-B1.0 (Cat. I/284) data</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>_RA</name><description>Position, from USNO-B1.0 catalog (Cat. I/284) (right ascension part)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>_DE</name><description>Position, from USNO-B1.0 catalog (Cat. I/284) (declination part)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column><column><name>recno</name><description>Record number assigned by the VizieR team. Should Not be used for identification.</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Note</name><description>[KU] Known or Unknown variables</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>USNO</name><description>USNO-B1.0 designation</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>primary</flag></column><column><name>DDiff</name><description>Offset from TAOS observation</description><unit>arcsec</unit><ucd>pos;arith.diff</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>B2mag</name><description>? 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