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<ri:Resource created="1998-11-08T12:33:21Z" 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>A catalogue of Mg_2_ indices</title><shortName>J/A+AS/132/255</shortName><identifier>ivo://CDS.VizieR/J/A+AS/132/255</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Golev V.</name></creator><creator><name>Prugniel P.</name></creator><date role="Updated">2013-03-06T06:40:03Z</date><date role="Created">1998-11-08T12:33:21Z</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>galaxies</subject><subject>catalogs</subject><subject>globular-star-clusters</subject><subject>astronomical-reference-materials</subject><description>We present a catalogue of published absorption-line Mg_2_ index measurements of galaxies and globular clusters. The catalogue consists in four tables and is maintained up-to-date in the database HYPERCAT (http://www-obs.univ-lyon1.fr/~prugniel/cgi-bin/hypercat/). The measurements are listed together with the references to the original articles where the data were published. A coded description of the observations is provided. Compiled raw data are aperture- corrected and, when it is possible, transformed to the homogeneous system. The zeropoints and re-scaling of errors are provided. The catalogue gather in total 3706 measurements for 1409 objects from 70 datasets. Total of 46 different publications were used to compile the catalogue. This catalogue will be updated. Check at the above given URL for recent version.</description><source format="bibcode">1998A&amp;AS..132..255G</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/132/255</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>http://www-obs.univ-lyon1.fr/~prugniel/cgi-bin/hypercat/ :</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/128/299">J/A+AS/128/299 : Prugniel &amp; Heraudeau, 1998, Photometry of galaxies</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/309/749">J/A+A/309/749 : Prugniel &amp; Simien, 1996, Fundamental plane 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