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<ri:Resource created="2016-09-20T13:08:20Z" 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>Teff against colours calibrations</title><shortName>J/MNRAS/454/2863</shortName><identifier>ivo://CDS.VizieR/J/MNRAS/454/2863</identifier><altIdentifier>doi:10.26093/cds/vizier.74542863</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Huang Y.</name></creator><creator><name>Liu X.-W.</name></creator><creator><name>Yuan H.-B.</name></creator><creator><name>Xiang M.-S.</name></creator><creator><name>Chen B.-Q.</name></creator><creator><name>Zhang H.-W.</name></creator><date role="Updated">2024-08-15T20:16:04Z</date><date role="Created">2016-09-20T13:08:20Z</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>dwarf-stars</subject><subject>giant-stars</subject><subject>photometry</subject><subject>effective-temperature</subject><subject>metallicity</subject><description>We present empirical metallicity-dependent calibrations of effective temperature against colours for dwarfs of luminosity classes IV and V and for giants of luminosity classes II and III, based on a collection from the literature of about two hundred nearby stars with direct effective temperature measurements of better than 2.5 per cent. The calibrations are valid for an effective temperature range 3100-10000K for dwarfs of spectral types M5 to A0 and 3100-5700K for giants of spectral types K5 to G5. A total of 21 colours for dwarfs and 18 colours for giants of bands of four photometric systems, i.e. the Johnson (UBVR_J_I_J_JHK), the Cousins (R_C_I_C_), the Sloan Digital Sky Survey (gr) and the Two Micron All Sky Survey (JHKs), have been calibrated. Restricted by the metallicity range of the current sample, the calibrations are mainly applicable for disc stars ([Fe/H]&gt;~-1.0). The normalized percentage residuals of the calibrations are typically 2.0 and 1.5 per cent for dwarfs and giants, respectively. Some systematic discrepancies at various levels are found between the current scales and those available in the literature (e.g. those based on the infrared flux method or spectroscopy). Based on the current calibrations, we have re-determined the colours of the Sun. We have also investigated the systematic errors in effective temperatures yielded by the current on-going large-scale low- to intermediate-resolution stellar spectroscopic surveys. We show that the calibration of colour (g-Ks) presented in this work provides an invaluable tool for the estimation of stellar effective temperature for those on-going or upcoming surveys.</description><source format="bibcode">2015MNRAS.454.2863H</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/454/2863</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></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/MNRAS/454/2863</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/454/2863</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/454/2863</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/454/2863</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/454/2863</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/454/2863</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/MNRAS/454/2863/table1 (Compiled data of dwarf and giant sample stars employed in the current work)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/454/2863/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/454/2863/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/454/2863/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>280.6956939</ra><dec>59.6267631</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/15 137 341 679 684 737 998 1341 2472 2591 2737 2923 2973 3020 3036 3102 3118 3639 3714 4376 4438 4574 4854 4990 5009 5304 5382 5420 5534-5535 5670 5718 5853 5982 6066 6082 6126 6219 6339 7238 7264 7545 7560 7760 8476 8767 8790 8843 8845 8995 9083 9125 9213 9219 9327 9476 9610 9712 9717 10375 10899 11403 11473 11519 11547 11633 11636 11732 12082 12592 12944 12953 13158 13282 13301 13332-13333 13440 13643 14005 14126 14144 14180 14278 14373 14419 14744 14757 14906 14948 14968 14975 15044 15107 15113 15145 15174 15311 15356 15597 15602 15882 16023 16069 16213 17425 17496 17752 18139 18547 18804 18821 19323 19329 19585 19912 20100 20125 20145 20311 20328 20940 21484 22015 22120 22300 22708 22807 23096 23190 23201 23230 23369 23533 23538 23540 23547 23820 23995 24151 24715 26024 26320 26457 26552 26575 26583 26975 27694 28208 28352 28548 28605 28664 29680 30289 30419 30529 30541 30543 30655 30665 30958 30965 31416 31433 31448 31475 31751 31781 32192 32645 33281 34510 35118 36317 36693 36697 36723 41565 41763 44284 44542 44921 45564 46566 46939 49060</spatial><spectral>7.952274030004205e-20 6.118840631666147e-19</spectral><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/454/2863?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/MNRAS/454/2863/table1</name><description>Compiled data of dwarf and giant sample stars employed in the current work</description><column><name>recno</name><description>Record number assigned by the VizieR team. 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