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<ri:Resource created="2017-05-23T15:36:28Z" status="active" updated="2025-05-19T09:50:00Z" version="1.2" 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/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>Experimental spectrum of methanol (CH_3_OH)</title><shortName>J/ApJ/795/56</shortName><identifier>ivo://CDS.VizieR/J/ApJ/795/56</identifier><altIdentifier>doi:10.26093/cds/vizier.17950056</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>McMillan J.P.</name></creator><creator><name>Fortman S.M.</name></creator><creator><name>Neese C.F.</name></creator><creator><name>De Lucia F.C.</name></creator><date role="Updated">2017-07-18T15:20:27Z</date><date role="Created">2017-05-23T15:36:28Z</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>spectroscopy</subject><subject>atomic-physics</subject><description>The spectrum of methanol (CH_3_OH) has been characterized between 214.6 and 265.4 GHz for astrophysically significant temperatures. Four hundred and eighty-six spectra with absolute intensity calibration recorded between 240 and 389 K provided a means for the calculation of the complete experimental spectrum (CES) of methanol as a function of temperature. The CES includes contributions from v_t_=3 and other higher states that are difficult to model quantum mechanically (QM). It also includes the spectrum of the ^13^C isotopologue in terrestrial abundance. In general the QM models provide frequencies that are within 1 MHz of their experimental values, but there are several outliers that differ by tens of MHz. As in our recent work on methanol in the 560-654 GHz region, significant intensity differences between our experimental intensities and cataloged values were found. In this work these differences are explored in the context of several QM analyses. The experimental results presented here are analyzed to provide a frequency point-by-point catalog that is well suited for the simulation of crowded and overlapped spectra. Additionally, a catalog in the usual line frequency, line strength, and lower state energy format is provided.</description><source format="bibcode">2014ApJ...795...56M</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/795/56</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>related-to</relationshipType><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/782/75">J/ApJ/782/75 : Complete spectrum of methanol (Fortman+, 2014)</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/795/56</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/795/56</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/795/56</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/795/56</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/795/56</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/795/56</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><coverage><footprint ivo-id="ivo://ivoa.net/std/moc"/><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/ApJ/795/56/table3</name><description>Line catalog</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>Snippet</name><description>[0/556] Snippet Index</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Ref</name><description>Reference Index</description><ucd>meta.ref;spect.index</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>S</name><description>Line Strength</description><unit>D**2</unit><ucd>spect.line.intensity</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_S</name><description>Line Strength Uncertainty</description><unit>D**2</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>E</name><description>Lower State Energy</description><unit>cm**-1</unit><ucd>phys.energy;phys.atmol.level</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_E</name><description>Lower State Energy Uncertainty</description><unit>cm**-1</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>nu</name><description>Frequency</description><unit>MHz</unit><ucd>em.freq</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_nu</name><description>Frequency Uncertainty</description><unit>MHz</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>LW</name><description>Lorentzian HWHM @ 300 K</description><unit>MHz</unit><ucd>stat.param</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>e_LW</name><description>Lorentzian HWHM Uncertainty</description><unit>MHz</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>C13</name><description>Line attributed to Carbon-13</description><ucd>stat.param</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table><table><name>J/ApJ/795/56/tablecal</name><description>Calibration Data</description><column><name>sp</name><description>Show the spectrum</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><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>Index</name><description>[0/485] Index of the Scan</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>T</name><description>Spectroscopic Temperature</description><unit>K</unit><ucd>phys.temperature</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>N</name><description>Effective Column Density</description><unit>nm**-2</unit><ucd>phys.columnDensity</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column></table><table><name>J/ApJ/795/56/tablefre</name><description>Frequency in MHz for all scans</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>Freq</name><description>Frequency</description><unit>MHz</unit><ucd>em.freq</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column></table></schema></tableset></ri:Resource>