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<ri:Resource created="1998-08-28T10:19:02Z" 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>JHK photometry of Galactic center stars</title><shortName>J/A+AS/97/587</shortName><identifier>ivo://CDS.VizieR/J/A+AS/97/587</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Ruelas-Mayorga R.A.</name></creator><creator><name>Teague P.F.</name></creator><date role="Updated">1998-08-28T10:19:41Z</date><date role="Created">1998-08-28T10:19:02Z</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-populations</subject><subject>infrared-photometry</subject><subject>infrared-sources</subject><description>We present K-counts and JHK detailed photometry for a number of stars with K&lt;=+9.0 in three clear regions near the galactic centre. These regions are all located approximately at l~0.0 and at latitudes b~-3.5,-4.0 and 4.5 respectively. Their Cumulative Counts Functions (CCF's) are formed, and with the aid of an exponential disk model for the Galaxy they are separated into disk and bulge CCF. As for the case in Baade's Window (BW) (Ruelas-Mayorga &amp; Teague, 1992A&amp;AS...95..379R) the disk is dominant at bright magnitudes whereas the bulge dominates at the faint end of the CCF. The slope of the bulge CCF is steeper than that for the disk in all three cases corroborating the result obtained for BW. The two colour JHK diagram and the K vs J-K diagram for the three regions show that the stellar population in these areas is similar to that studied in BW by us and by Frogel &amp; Whitford (1987ApJ...320..199F). An average value of E(J-K)~0.42mag for the reddening is obtained, which is somewhat larger than that found for BW (0.27). Finally it is shown that at K&lt;=+9.0, the disk population may be accounted for by those sources with J-K&lt;=+1.6 whereas the bulge population presents values for J-K in excess of +1.6.</description><source format="bibcode">1993A&amp;AS...97..587R</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/97/587</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+AS/93/61">J/A+AS/93/61 : IR Stellar Population in Baade's window (Ruelas-Mayorga+ 1992)</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/A+AS/97/587</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/97/587</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/97/587</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/97/587</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/97/587</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/97/587</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/A+AS/97/587/table2 (Observed values for the JHK photometry of sources in regions R1, R2 and R3)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+AS/97/587/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/A+AS/97/587/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+AS/97/587/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>269.736897</ra><dec>-30.764351</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+AS/97/587?format=ascii</footprint><waveband>Infrared</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+AS/97/587/table1</name><description>Cumulative Counts Functions (CCF) values</description><column><name>Region</name><description>Region (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType><flag>primary</flag></column><column><name>Corr</name><description>Corrected number of observed sources</description><ucd>instr.param</ucd><dataType xsi:type="vs:VOTableType">float</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>Kmagup</name><description>K magnitude up to which the number of sources has been measured</description><unit>mag</unit><ucd>phot.mag;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Nsources</name><description>Cumulative number of sources observed</description><ucd>meta.number</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Ndisk</name><description>Number of sources per square degree (N) in the disk</description><unit>count.deg**-2</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>logNdisk</name><description>LogNdisk</description><unit>log(count.deg**-2)</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logNdisk2</name><description>Model-predicted logarithm of Ndisk (2)</description><unit>log(count.deg**-2)</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logNbulge</name><description>logarithm of N for the bulge component</description><unit>log(count.deg**-2)</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logNbulge(BW)</name><description>logarithm of N derived from the Baade Window bulge CCF and the r^1/4^ law</description><unit>log(count.deg**-2)</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logMean</name><description>logarithm of the mean of logNbulge and logNbulge(BW)</description><unit>log(count.deg**-2)</unit><ucd>src.density</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column></table><table><name>J/A+AS/97/587/table2</name><description>Observed values for the JHK photometry of sources in regions R1, R2 and R3</description><column><name>Region</name><description>Region designation</description><ucd>obs.field</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType><flag>primary</flag></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>Object</name><description>Object designation</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>RA1950</name><description>Right ascension (1950)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DE1950</name><description>Declination</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>Jmag</name><description>J magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR.J</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Jmag</name><description>? rms uncertainty on Jmag (1)</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Hmag</name><description>H magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR.H</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Hmag</name><description>? rms uncertainty on Hmag (1)</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Kmag</name><description>K magnitude</description><unit>mag</unit><ucd>phot.mag;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Kmag</name><description>? rms uncertainty on Kmag (1)</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>J-H</name><description>J-H colour index</description><unit>mag</unit><ucd>phot.color;em.IR.J;em.IR.H</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_J-H</name><description>? rms uncertainty in J-H</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>H-K</name><description>H-K colour index</description><unit>mag</unit><ucd>phot.color;em.IR.H;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_H-K</name><description>? rms uncertainty in H-K</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>J-K</name><description>J-K colour index</description><unit>mag</unit><ucd>phot.color;em.IR.J;em.IR.K</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_J-K</name><description>? rms uncertainty in J-K</description><unit>mag</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>