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<ri:Resource created="1999-03-17T07:07:39Z" 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>The Hamburg/SAO Survey for ELGs</title><shortName>J/A+AS/135/511</shortName><identifier>ivo://CDS.VizieR/J/A+AS/135/511</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Ugryumov A.V.</name></creator><creator><name>Engels D.</name></creator><creator><name>Lipovetsky V.A.</name></creator><creator><name>Hagen H.-J.</name></creator><creator><name>Hopp U.,Pustilnik S.A.</name></creator><creator><name>Kniazev A.Yu.</name></creator><creator><name>Richter G.</name></creator><creator><name>Izotov Yu.I.</name></creator><creator><name>Popescu C.C.</name></creator><date role="Updated">2013-03-06T06:41:09Z</date><date role="Created">1999-03-17T07:07:39Z</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>spectroscopy</subject><subject>redshifted</subject><subject>radial-velocity</subject><subject>apparent-magnitude</subject><description>We present first results of the Hamburg/SAO Survey for Emission-Line Galaxies (HSS therein, SAO - Special Astrophysical Observatory, Russia) which is based on the digitized objective-prism photoplates database of the Hamburg Quasar Survey (HQS). The main goal of this survey is the search for emission-line galaxies (ELG) in order to create a new deep sample of blue compact galaxies (BCG) in a large sky area. Another important goal of this work is to search for new extremely low-metallicity galaxies. We present the first results of spectroscopy obtained with the 2.2m telescope at the German-Spanish Observatory at Calar Alto, and with the 6m telescope at the Russian Special Astrophysical Observatory. The primary ELG candidate selection criteria applied were a blue continuum (near 4000{AA}) and the presence of emission lines close to 5000A recognized on digitized prism spectra of galaxies with magnitudes in the range B =16.0-19.5. The spectroscopy resulted in the detection or/and quantitative spectral classification of 74 emission-line objects. Of them 55 are newly discovered, and 19 were already known as galaxies before. 11 of the latter have redshifts and are known ELGs. For most of the known galaxies emission line ratios were measured for the first time and an improved classification is presented. 47 objects are classified as BCGs, one as Sy2 galaxy, six as probable LINERs, and four as new QSOs. The remaining galaxies do not show significant H{beta} and [OIII]4959,5007{AA} emission lines, and are likely either low-ionization starburst or dwarf amorphous nuclear starburst galaxies.</description><source format="bibcode">1999A&amp;AS..135..511U</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/135/511</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/137/299">J/A+AS/137/299 : Hamburg/SAO Survey for ELGs. II. (Pustilnik+ 1999)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/142/417">J/A+AS/142/417 : Hamburg/SAO Survey for ELGs. III. (Hopp+, 2000)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/366/771">J/A+A/366/771 : Hamburg/SAO Survey for ELGs. IV. (Kniiazev+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/374/907">J/A+A/374/907 : Hamburg/SAO Survey for ELGs. V. (Ugryumov+, 2001)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/442/109">J/A+A/442/109 : Hamburg/SAO Survey for ELGs. VI. (Pustilnik+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/MNRAS/246/433">J/MNRAS/246/433 : CCD photometry + APM parameters for galaxies (Maddox+ 1990)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/115/235">J/A+AS/115/235 : Hamburg/ESO survey for bright QSOs. II. (Reimers+, 1996)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+AS/128/507">J/A+AS/128/507 : Hamburg Quasar Survey. 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