<?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?>
<ri:Resource created="2017-01-19T13:58:04Z" 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>Hydrogen-Line Absorption in Early-Type Stars</title><shortName>II/40</shortName><identifier>ivo://CDS.VizieR/II/40</identifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Bappu M.K.V.</name></creator><creator><name>Chandra S.</name></creator><creator><name>Sanwal N.B.</name></creator><creator><name>Sinvhal S.D.</name></creator><date role="Updated">2018-01-04T08:21:51Z</date><date role="Created">2017-01-19T13:58:04Z</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>visible-astronomy</subject><subject>narrow-band-photometry</subject><subject>early-type-stars</subject><description>Photoelectric determinations of H-{gamma} absorption line intensity have been made of stars in selected clusters and associations as well as in the general galactic field. Interference filters having a width at half intensity of 45{AA} were used to isolate spectral regions centered on 4280{AA}, H-{gamma} and 4410{AA}. The {Gamma} indices derived, which represent a measure of H-{gamma} absorption, can be used in conjunction with unreddened values of either (U-B) or (B-V) for spectral and luminosity class determinations of stars in the spectral range O6 to A0.</description><source format="bibcode">1962MNRAS.123..521B</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/II/40</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=II/40</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/40</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/40</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/40</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=II/40</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/40</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 II/40/data ({Gamma} values (from table II of paper))</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/II/40/data?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/II/40/data?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/II/40/data?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>32.16908</ra><dec>58.4236011</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>5/814 6/461 463 472 474 496 1198 1385 1397 1430 1539 1549 1550 1554 1555 1558 1577 1727 1766 1768 1770 1771 2775 2970 3060 3101 3136 3137 3138 3144 3199 3247 3251 3260 3600 3601 3625 4181 4419 4698 5311 5631 6082 6674 7181 8687 10731 11120 11202 11851 14906 20759 20847 20862 21401 21432 21434 21435 21438 21450 21879 22334 22511 22787 22790 22854 22858 22859 22861 22862 22880 22881 22884 23007 23360 23621 23637 23639 23769 23864 23979 24338 24480 24504 24562 25016 25659 25973 26024 26879 27498 27574 28137 28208 28352 28481 28484 29208 39831 39853 39907 40421 41982 41983 42428 42672 42687 42738 42924 42932 42948 42959 42977 43365 43397 43407 43414 43416 43429 44119 44305 44312 44360 44366 44386</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/II/40?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>II/40/data</name><description>{Gamma} values (from table II of paper)</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>Star</name><description>Star identification (HD or cluster star number)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="12*">char</dataType></column><column><name>V0</name><description>? Dereddened V_0_ magnitude</description><unit>cmag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>(U-B)0</name><description>? Dereddened (U-B)_0_ color index</description><unit>cmag</unit><ucd>phot.color;em.opt.U;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>Gamma</name><description>{Gamma} index (1)</description><ucd>phot.color</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><ucd>meta.ref.url</ucd><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></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></column></table></schema></tableset></ri:Resource>