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<ri:Resource created="2005-03-15T07:31:59Z" 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>Catalog of Eq.Widths of Interstellar 217nm Band</title><shortName>III/164</shortName><identifier>ivo://CDS.VizieR/III/164</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Friedemann C.</name></creator><date role="Updated">2018-01-04T08:22:51Z</date><date role="Created">2005-03-15T07:31:59Z</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>line-intensities</subject><subject>interstellar-medium</subject><subject>spectroscopy</subject><subject>ultraviolet-astronomy</subject><subject>ultraviolet-photometry</subject><description>(from CDS Inf. Bull. 40, 31) The main task of the catalogue consists in a comprehensive collection of equivalent widths of the 217nm band derived from both spectrophotometric and filterphotometric measurements obtained with TD-1, OAO-2 and ANS satellites. These data concern reddened O, B stars with color excesses E(B-V) &gt;= 0.02 mag. The extinction curve is approximated by the empirical formula introduced by Guertler et al. (1982AN....303..105G) e({lambda}) = A(i/{lambda} - 1/{lambda}o)^n^ + B + C {kappa}({lambda}) The relative errors amount to about {delta}A/A = +/- 0.10, {delta}B/B = +/- 0.02 and {delta}C/C = +/- 0.03.</description><source format="bibcode">1992BICDS..40...31F</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/III/164</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=III/164</accessURL><mirrorURL title="VizieR at IUCAA: Pune, 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Should Not be used for identification.</description><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Name</name><description>Star name</description><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>E(B-V)</name><description>? E(B-V) Color excess</description><unit>mag</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>lam_c</name><description>? Central wavelength of the 2200 band ({AA})</description><unit>nm</unit><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>A</name><description>A parameter (see "Description" section above)</description><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>B</name><description>B parameter (see "Description" section above)</description><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>C</name><description>C parameter (see "Description" section above)</description><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>W</name><description>Equivalent width ({AA})</description><unit>nm</unit><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>N</name><description>Number of observations</description><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>_RA</name><description>Right Ascension (J2000) from SIMBAD (not part of the original data)</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><flag>nullable</flag></column><column><name>_DE</name><description>Declination (J2000) from SIMBAD (not part of the original data)</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><flag>nullable</flag></column></table></schema></tableset></ri:Resource>