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<ri:Resource created="2024-11-25T12:48:39Z" 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>Reliable distances of Galactic SNRs</title><shortName>J/ApJ/940/63</shortName><identifier>ivo://CDS.VizieR/J/ApJ/940/63</identifier><altIdentifier>doi:10.26093/cds/vizier.19400063</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Ranasinghe S.</name></creator><creator><name>Leahy D.</name></creator><date role="Updated">2025-02-13T20:11:52Z</date><date role="Created">2024-11-25T12:48:39Z</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>supernova-remnants</subject><subject>stellar-distance</subject><description>We present a table of 215 supernova remnants (SNRs) with distances. New distances are found to SNR G51.26+0.11 of 6.6+/-1.7kpc using HI absorption spectra and to five other SNRs using maser/molecular cloud associations. We recalculate the distances and errors to all SNRs using a consistent rotation curve and provide errors where they were not previously estimated. This results in a significant distance revisions for 20 SNRs. Because of observational constraints and selection effects, there is an apparent deficit of observed number of Galactic SNRs. To investigate this, we employ two methods. The first method applies correction factors for the selection effects to derive the radial density distribution. The second method compares functional forms for the SNR surface density and selection function against the data to find which functions are consistent with the data. The total number of SNRs in the Galaxy is ~3500 (Method 1) or in the range from ~2400 to ~5600 (Method 2). We conclude that the current observed number of SNRs is not yet complete enough to give a well-determined total SNR number or radial density function.</description><source format="bibcode">2022ApJ...940...63R</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/940/63</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/VII/284">VII/284 : A Catalogue of Galactic Supernova Remnants (Green, 2019)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/397/133">J/A+A/397/133 : Star-forming complexes in the Galaxy (Russeil+, 2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/690/706">J/ApJ/690/706 : Distances of Galactic HII regions (Anderson+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/508/1331">J/A+A/508/1331 : CO maps of 3 galactic supernova remnants (Liszt, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/754/62">J/ApJ/754/62 : HRDS III. HII region kinematic distances (Anderson+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/783/130">J/ApJ/783/130 : Parallaxes of high mass star forming regions (Reid+, 2014)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/627/A75">J/A+A/627/A75 : VRO 42.05.01 CO datacubes (Arias+, 2019)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/634/A83">J/A+A/634/A83 : THOR DR2 source list (Wang+, 2020)</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=J/ApJ/940/63</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/940/63</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/940/63</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/940/63</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/940/63</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/940/63</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 J/ApJ/940/63/table1 (Galactic supernova remnants (SNRs) with reliable distances)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/940/63/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/940/63/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/940/63/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>266.4208</ra><dec>-29.0133</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/1301 1390 1470 1756 1847 1860 1970 3063 3458 3642 3651 3681 3729 3818 12968 12970 13212 14261 14285 14299 14301 14305-14306 14321 14325 14342 14353 14411 14413-14415 14418 14424 14427 14449 14454 14529 14619 14640-14641 14645 14685 14696 14791 15369-15370 15407 15430 15435 15439 15511 15641 15769 22120 22260 22264 23805 23993 23995 24185 24438 24460 24471 28803 28808-28809 28813 28825 28830-28831 28887 28890 28894 28896 28901 28912-28913 28918-28919 29090 29094 29097 29100-29101 29103 29106 29116 29119 29161 29166 29182 29259 29460-29461 29505 29507-29508 29511 29523 29532 30211 30216 30218 30244-30245 30256 30259 30263-30264 30269 30306 30312-30313 30315 30319 30330 30335 30423 30506 30595 30601 30604 30607 30616 30619 30642 30645 30692 30709 30712 30716 30719 37342 37828 37869 37874 37893 37904 37924 37926 37928 37937 38400 38673 39235 39267 41583 41594 41643 41660 41670 41674 41676 41681 41684-41685 41758 41760 41772 41778 41798 41802 41809 41812 41814 41862 42137 42169 42171 42213 42215 42217 42224-42225 42290 42362 42381-42382 42396 42400-42401 42434 42439 42444-42445 42455 42459-42460 42498 42502 42666 42670 43019 43523</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/940/63?format=ascii</footprint></coverage><tableset><schema><name>default</name><table><name>J/ApJ/940/63/table1</name><description>Galactic supernova remnants (SNRs) with reliable distances</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>Seq</name><description>[1/215] Running sequence number</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>SNR</name><description>SNR name (GLLL.ll+BB.bb)</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="13*">char</dataType></column><column><name>f_SNR</name><description>Flag on SNR (1)</description><ucd>meta.code;meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>l_Distl1</name><description>[&lt;&gt;=~ ] Limit flag on Distl1</description><ucd>meta.code.error;pos.distance</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column><column><name>Distl1</name><description>[0.2/20]? Literature distance or lower range of literature distance if Distl2 is filled</description><unit>kpc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Distl2</name><description>[2.5/13]? Upper range of literature distance</description><unit>kpc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Distl1</name><description>[0.02/4.5]? Lower uncertainty on Distl1</description><unit>kpc</unit><ucd>stat.error;stat.min;pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>E_Distl1</name><description>[0.02/4.5]? Upper uncertainty on Distl1</description><unit>kpc</unit><ucd>stat.error;stat.max;pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Distl3</name><description>Other literature distance</description><unit>kpc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType" arraysize="3*">char</dataType></column><column><name>Method</name><description>Method</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="26*">char</dataType></column><column><name>Vlsr1</name><description>[-115/104]? LSR velocity or lower range of LSR velocity if Vlsr2 is filled</description><unit>km/s</unit><ucd>phys.veloc;pos.lsr</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Vlsr2</name><description>[-145/-45]? Upper range of LSR velocity</description><unit>km/s</unit><ucd>phys.veloc;pos.lsr</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>e_Vlsr1</name><description>[5/6]? Vlsr1 uncertainty</description><unit>km/s</unit><ucd>stat.error;phys.veloc;pos.lsr</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>n_Vlsr1</name><description>Note on V_LSR_ (2)</description><ucd>meta.note;phys.veloc;pos.lsr</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>Ref</name><description>Reference(s) (see refs.dat file)</description><ucd>meta.ref;pos.distance</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>l_Dist</name><description>Limit flag on Dist</description><ucd>meta.code.error;pos.distance</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Dist</name><description>[0.5/16.7]? Revised distance (3)</description><unit>kpc</unit><ucd>pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Dist</name><description>[0.16/1.8]? Dist uncertainty (4)</description><unit>kpc</unit><ucd>stat.error;pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>l_Rgc1</name><description>[&gt;= ] Limit flag on Rgc1</description><ucd>meta.code.error;pos.distance;pos.galactocentric</ucd><dataType xsi:type="vs:VOTableType" arraysize="2*">char</dataType></column><column><name>Rgc1</name><description>[0/16.5]? Galactocentric distance or lower range of Galactocentric distance if Rgc2 is filled</description><unit>kpc</unit><ucd>pos.distance;pos.galactocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Rgc2</name><description>[13.3]? Upper range of Galactocentric distance</description><unit>kpc</unit><ucd>pos.distance;pos.galactocentric</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>e_Rgc1</name><description>[0.05/3.8]? Lower uncertainty on Rgc1</description><unit>kpc</unit><ucd>stat.error;stat.min;pos.distance</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>E_Rgc1</name><description>[0.05/4.1]? 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