<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2017-11-19T00:00:00Z" status="active" updated="2024-07-12T07:32:25Z" version="1.2" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" 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://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.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:CatalogResource"><title>Hyperleda isolated galaxy pairs</title><shortName>hyperleda.galaxi</shortName><identifier>ivo://padc.obspm.astro-m/hyperleda/q/galaxies</identifier><curation><publisher>Paris Astronomical Data Centre - LESIA</publisher><creator><name>Laurent Nottale</name></creator><date role="Updated">2025-07-16T13:22:26Z</date><contact><name>Laurent Nottale</name><address>Observatoire de Paris PADC, bat. Perrault, 77 av. Denfert Rochereau,
75014 Paris, FRANCE</address><email>vo.paris@obspm.fr</email></contact></curation><content><subject>spectroscopy</subject><subject>Galaxies</subject><description>A catalog of isolated galaxy pairs limited to absolute magnitude -18.5
drawn from HyperLEDA database http://arxiv.org/abs/1706.06482</description><source>Hyperleda</source><referenceURL>http://voparis-tap-astro-m.obspm.fr/tableinfo/hyperleda.galaxies</referenceURL><type>Catalog</type></content><facility>SDSS-DR2 and 2dFGRS</facility><instrument>various</instrument><coverage><waveband>Infrared</waveband><waveband>Optical</waveband></coverage><tableset><schema><name>hyperleda</name><title>Hyperleda isolated galaxy pairs</title><description>A catalog of isolated galaxy pairs limited to absolute magnitude -18.5
drawn from HyperLEDA database http://arxiv.org/abs/1706.06482</description><table><name>hyperleda.galaxies</name><description>A catalog of isolated galaxy pairs limited to absolute magnitude -18.5
drawn from HyperLEDA database http://arxiv.org/abs/1706.06482</description><column><name>ra</name><description>the J2000 alpha coordinate of the first galaxy of the pair, in decimal deg</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>dec</name><description>the J2000 delta coordinate of the first galaxy of the pair, in decimal degree</description><ucd>pos.eq.dec;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>mag</name><description>he absolute magnitude of the first galaxy of the pair</description><ucd>phys.magAbs</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>vr</name><description>The heliocentric radial velocity V 1 of the first galaxy of the pair, in km.s −1</description><unit>km/s</unit><ucd>spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>vr_error</name><description>the uncertainty on heliocentric radial velocity , in km.s −1</description><unit>km/s</unit><ucd>stat.error;spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ra2</name><description>the J2000 α coordinate of the second galaxy of the pair, in decimal deg</description><unit>deg</unit><ucd>pos.eq.ra;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>dec2</name><description>the J2000 δ coordinate of the second galaxy of the pair, in decimal degree</description><unit>deg</unit><ucd>pos.eq.dec;meta.main</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>mag2</name><description>the absolute magnitude of the second galaxy of the pair</description><ucd>phys.magAbs</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>vr2</name><description>the heliocentric radial velocity V 2 of the second galaxy of the pair, in km.s −1</description><unit>km/s</unit><ucd>spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>vr2_error</name><description>the uncertainty on V 2 , in km.s −1</description><unit>km/s</unit><ucd>stat.error;spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>deltav</name><description>the absolute value of the radial velocity difference delta V between the pair members, in km.s −1</description><unit>km/s</unit><ucd>spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>deltav_error</name><description>the absolute value of the radial velocity difference delta V between the pair members, in km.s −1</description><unit>km/s</unit><ucd>stat.error;spect.dopplerVeloc</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>interdistance</name><description>the interdistance projected on the sky plane between the two pair members, in Mpc</description><unit>Mpc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>ro</name><description>the ratio ρ = r 3 /r p for the closest galaxy to the pair in the absolute magnitude-limited catalog TBD</description><ucd>stat.value</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>mag3</name><description>the absolute magnitude of this closest galaxy.</description><ucd>phys.magAbs</ucd><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>