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<ri:Resource created="2013-04-18T15:31:29Z" 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>X-ray and mid-IR study of NGC 2023</title><shortName>J/MNRAS/429/775</shortName><identifier>ivo://CDS.VizieR/J/MNRAS/429/775</identifier><altIdentifier>doi:10.26093/cds/vizier.74290775</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Lopez-Garcia M.A.</name></creator><creator><name>Lopez-Santiago J.</name></creator><creator><name>Albacete-Colombo J. F.,Perez-Gonzalez P.G</name></creator><creator><name>de Castro E.</name></creator><date role="Updated">2024-07-20T20:14:02Z</date><date role="Created">2013-04-18T15:31:29Z</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>open-star-clusters</subject><subject>infrared-photometry</subject><subject>x-ray-sources</subject><description>We present the results obtained in the X-ray and infrared study in the star-forming region NGC2023. The X-ray observation (ID=0112640201) was performed as a single 30ks exposure on 2002. Afer our processing, the useful exposure time was reduced around to 15ks. Spitzer photometry (AORKEY 8773120 and 8773632) we used MOPEX to create the mosaic image and DAOPHOT package to derived the fluxes. Optical photometry (V and I magnitude) was obtained from DENIS and Mid-Infrared from 2MASS and WISE. We used Robitaille et al. 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Distance</description><unit>pc</unit><ucd>pos.distance;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</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>SRC</name><description>[1/50] Source number</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>RAJ2000</name><description>Right ascension (J2000)</description><ucd>pos.eq.ra;meta.main</ucd></column><column><name>DEJ2000</name><description>Declination (J2000)</description><ucd>pos.eq.dec;meta.main</ucd></column><column><name>CRPN</name><description>? 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Hardness ratio 2 (hard), HR2</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Rem</name><description>Remarks, [YKK2000] is for Yamauchi et al. (2000PASJ...52.1087Y)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="18*">char</dataType></column><column><name>Name</name><description>Other name</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="14*">char</dataType></column><column><name>Vmag</name><description>? V magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Vmag</name><description>? rms uncertainty on Vmag</description><unit>mag</unit><ucd>stat.error;phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Imag</name><description>? 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