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<ri:Resource created="2013-10-24T10:10:43Z" 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>Distance to Cepheids using the Wesenheit function</title><shortName>J/ApJ/747/50</shortName><identifier>ivo://CDS.VizieR/J/ApJ/747/50</identifier><altIdentifier>doi:10.26093/cds/vizier.17470050</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Ngeow C.-C.</name></creator><date role="Updated">2017-09-29T09:03:17Z</date><date role="Created">2013-10-24T10:10:43Z</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>stellar-distance</subject><subject>variable-stars</subject><subject>astronomical-models</subject><description>In this paper, we explore the possibility of using the Wesenheit function to derive individual distances to Galactic Cepheids, as the dispersion of the reddening-free Wesenheit function is smaller than the optical period-luminosity (P-L) relation. When compared to the distances from various methods, the averaged differences between our results and published distances range from -0.061 to 0.009, suggesting that the Wesenheit function can be used to derive individual Cepheid distances. We have also constructed Galactic P-L relations and selected Wesenheit functions based on the derived distances. A by-product from this work is the derivation of Large Magellanic Cloud distance modulus when calibrating the Wesenheit function. It is found to be 18.531+/-0.043 mag.</description><source format="bibcode">2012ApJ...747...50N</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/747/50</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/J/A+A/550/A70">J/A+A/550/A70 : Galactic &amp; MC Cepheids distance (Groenewegen, 2013)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/142/136">J/AJ/142/136 : Spectroscopy of Cepheids. l=30-250{deg} (Luck+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/142/51">J/AJ/142/51 : Galactic Cepheids abundance variations (Luck+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/715/277">J/ApJ/715/277 : Insights into the Cepheid distance scale (Bono+, 2010)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/476/73">J/A+A/476/73 : Calibration of Cepheid P-L relation (Fouque+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/404/423">J/A+A/404/423 : BVI photometry of Galactic Cepheids (Tammann+, 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/143/211">J/A+AS/143/211 : Galactic Cepheids BVRI photometry (Berdnikov+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/113/1073">J/AJ/113/1073 : Abundances in Cepheid Variables (Fry+ 1997)</relatedResource><relatedResource>http://www.astro.utoronto.ca/DDO/research/cepheids/ : the Galactic Cepheid</relatedResource></relationship></content><rights>https://cds.unistra.fr/vizier-org/licences_vizier.html</rights><capability><interface 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arraysize="13*">char</dataType></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>Name</name><description>Name of Cepheid</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>Type</name><description>Type of Cepheid from GCVS (CEP, DCEP or DCEPS)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="5*">char</dataType></column><column><name>log(P)</name><description>[0.16/1.84] log10 of the pulsating period</description><unit>log(d)</unit><ucd>time.period</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Bmag</name><description>[2.3/16.2]? The B band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Vmag</name><description>[1.97/14.64] The V band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Rmag</name><description>? The R band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.opt.R</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Imag</name><description>The I band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.opt.I</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Jmag</name><description>[0.8/9.8]? The J band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.IR.J</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Hmag</name><description>? The H band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.IR.H</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Kmag</name><description>? The K band mean magnitude (1)</description><unit>mag</unit><ucd>phot.mag;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>E(B-V)</name><description>[0/1.678]? Extinction value (2)</description><unit>mag</unit><ucd>phot.color.excess</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>[Fe/H]</name><description>[-0.7/0.5]? 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