<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2006-11-12T13:12:13Z" 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>Nebular abundances of southern symbiotic stars</title><shortName>J/A+A/435/1087</shortName><identifier>ivo://CDS.VizieR/J/A+A/435/1087</identifier><altIdentifier>doi:10.26093/cds/vizier.34351087</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Luna G.J.M.</name></creator><creator><name>Costa R.D.D.</name></creator><date role="Updated">2017-12-07T07:27:10Z</date><date role="Created">2006-11-12T13:12:13Z</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>eclipsing-binary-stars</subject><subject>chemically-peculiar-stars</subject><description>We have calculated relative element abundances for a sample of 43 symbiotic stars. Helium abundances and the relative elemental abundances N/O, Ne/O, Ar/O were derived from new spectra collected in the optical range through low dispersion spectroscopy. The He ionic abundances were derived taking into account self-absorption effects in Balmer lines. We found that the symbiotic stars in the galactic bulge have heavy element abundances showing the same wide distribution as other bulge objects. In the galactic disk, the symbiotic stars follow the abundance gradient as derived from different kinds of objects.</description><source format="bibcode">2005A&amp;A...435.1087L</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/435/1087</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/A+A/435/1087</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/435/1087</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/435/1087</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/435/1087</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/435/1087</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/435/1087</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+A/435/1087/table2 (Reddening-corrected line fluxes (H{beta}=100))</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/435/1087/table2?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/435/1087/table2?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/435/1087/table2?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>253.7166667</ra><dec>-30.6217583</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/12551 12912 12996 24150 28703 28705 28750 28772 28774 28779 28783 28785 28792 28795 28837-28839 28849 28866 28868 28870 28882 28921 28984 29032-29033 29049 29229 29248 29267 29285 29479-29480 29536 29574 30374 32986 33391 36426 36460 37232 42270 42365 42492 42779 42823 42831 42842 43238 45666 45821 46079 47780</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/435/1087?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/A+A/435/1087/table2</name><description>Reddening-corrected line fluxes (H{beta}=100)</description><column><name>FeVI5176</name><description>FeVI5176 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</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>Name</name><description>Source name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>H3835</name><description>H3835 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NeIII3869</name><description>NeIII3869 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NeIII3968</name><description>NeIII3968 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Hdelta</name><description>H{delta} reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Hgamma</name><description>H{gamma} reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OIII4363</name><description>OIII4363 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NIII4640</name><description>NIII4640 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>HeII4686</name><description>HeII4686 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIII4711</name><description>ArIII4711 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIV4740</name><description>ArIV4740 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Hbeta</name><description>H{beta} reddening-corrected line flux (1)</description><ucd>phot.flux;em.line.Hbeta</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII4893</name><description>FeVII4893 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII4944</name><description>FeVII4944 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVI4872</name><description>FeVI4872 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII4988</name><description>FeVII4988 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OIII4959</name><description>OIII4959 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OIII5007</name><description>OIII5007 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeII4923</name><description>FeII4923 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVI5145</name><description>FeVI5145 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII5159</name><description>FeVII5159 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NI5200</name><description>NI5200 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeII5261</name><description>FeII5261 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>5270+5277</name><description>5270+5277 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVI5334</name><description>FeVI5334 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>5411+5426</name><description>5411+5426 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeII5649</name><description>FeII5649 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII5721</name><description>FeVII5721 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NII5755</name><description>NII5755 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>HeI5875</name><description>HeI5875 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>C5800</name><description>C5800 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeVII6086</name><description>FeVII6086 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OI6300</name><description>OI6300 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SIII6312</name><description>SIII6312 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OI6363</name><description>OI6363 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArV6435</name><description>ArV6435 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NII6548</name><description>NII6548 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Halpha</name><description>H{alpha} reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>NII6583</name><description>NII6583 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>HeI6678</name><description>HeI6678 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SII6717</name><description>SII6717 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SII6731</name><description>SII6731 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SII6717+31</name><description>SII6717+6731 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArV7005</name><description>ArV7005 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>HeI7065</name><description>HeI7065 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIII7135</name><description>ArIII7135 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FeII7155</name><description>FeII7155 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIV7170</name><description>ArIV7170 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIV7239</name><description>ArIV7239 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>ArIV7262</name><description>ArIV7262 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>OII7320+30</name><description>OII7320+7330 reddening-corrected line flux (1)</description><ucd>phot.flux;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>SimbadName</name><description>Simbad column added by the CDS</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>_RA</name><description>Computed Right Ascension for Equinox: J2000</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd></column><column><name>_DE</name><description>Computed Declination for Equinox: J2000</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd></column></table><table><name>J/A+A/435/1087/table3</name><description>N_e_, E(B-V) and {tau}_H{alpha}_ derived for our sample.</description><column><name>Name</name><description>Source name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">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>Seq</name><description>Sequential number of the Source</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>n_Name</name><description>[gjk] Note on Name (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>E(B-V)</name><description>Reddening</description><unit>mag</unit><ucd>phot.color.excess</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>n_E(B-V)</name><description>[bi] Note on E(B-V)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>tauHa</name><description>? Optical depth of H{alpha}</description><ucd>phys.absorption.opticalDepth</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Ne[OIII]</name><description>Electron density for [OIII] density zone</description><unit>cm**-3</unit><ucd>phys.density;phys.electron</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>l_E(B-V)2</name><description>[&lt;= ] Limit flag on E(B-V)2</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column><column><name>E(B-V)2</name><description>? Other reddening</description><unit>mag</unit><ucd>phot.color.excess</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_E(B-V)2</name><description>[a-n] Note on E(B-V)2</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>E(B-V)3</name><description>? Other reddening</description><unit>mag</unit><ucd>phot.color.excess</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>n_E(B-V)3</name><description>[df] Note on E(B-V)3</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column></table><table><name>J/A+A/435/1087/table4</name><description>He abundances</description><column><name>He</name><description>? He abundance</description><ucd>phys.abund.Y</ucd><dataType xsi:type="vs:VOTableType">float</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>Seq</name><description>Sequential number of the source</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Name</name><description>Source name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>HeI</name><description>? He I abundance</description><ucd>phys.abund.Y</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>HeII</name><description>? He II abundance</description><ucd>phys.abund.Y</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table><table><name>J/A+A/435/1087/table5</name><description>Ionic abundances for symbiotic stars in our sample</description><column><name>OIII</name><description>? OIII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ArV</name><description>? ArV abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ArIII</name><description>? ArIII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ArIV</name><description>? ArIV abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>NI</name><description>? NI abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>NeIII</name><description>? NeIII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>NeIV</name><description>? NeIV abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>SIII</name><description>? SIII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</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>Name</name><description>Source</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>NII</name><description>? NII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>OI</name><description>? OI abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>OII</name><description>? OII abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column></table><table><name>J/A+A/435/1087/table6</name><description>Relative elemental abundances.</description><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>Seq</name><description>Sequential number of the source</description><ucd>meta.record</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Name</name><description>Source name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>N/O</name><description>? N/O relative abundance</description><ucd>phys.abund;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Ne/O</name><description>? Ne/O relative abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Ar/O</name><description>? Ar/O relative abundance</description><ucd>phys.abund</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>