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<ri:Resource created="2012-08-23T07:37:37Z" 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>Classification of nova light curves</title><shortName>J/AJ/140/34</shortName><identifier>ivo://CDS.VizieR/J/AJ/140/34</identifier><altIdentifier>doi:10.26093/cds/vizier.51400034</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Strope R.J.</name></creator><creator><name>Schaefer B.E.</name></creator><creator><name>Henden A.A.</name></creator><date role="Updated">2018-01-05T08:55:36Z</date><date role="Created">2012-08-23T07:37:37Z</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>novae</subject><subject>photometry</subject><description>We present a catalog of 93 very-well-observed nova light curves. The light curves were constructed from 229,796 individual measured magnitudes, with the median coverage extending to 8.0mag below peak and 26% of the light curves following the eruption all the way to quiescence. Our time-binned light curves are presented in figures and as complete tabulations. We also calculate and tabulate many properties about the light curves, including peak magnitudes and dates, times to decline by 2, 3, 6, and 9mag from maximum, the time until the brightness returns to quiescence, the quiescent magnitude, power-law indices of the decline rates throughout the eruption, the break times in this decline, plus many more properties specific to each nova class. We present a classification system for nova light curves based on the shape and the time to decline by 3mag from the peak (t3). The designations are "S" for smooth light curves (38% of the novae), "P" for plateaus (21%), "D" for dust dips (18%), "C" for cusp-shaped secondary maxima (1%), "O" for quasi-sinusoidal oscillations superposed on an otherwise smooth decline (4%), "F" for flat-topped light curves (2%), and "J" for jitters or flares superposed on the decline (16%). Our classification consists of this single letter followed by the t3 value in parentheses; so, for example, V1500 Cyg is S(4), GK Per is O(13), DQ Her is D(100), and U Sco is P(3).</description><source format="bibcode">2010AJ....140...34S</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/140/34</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=J/AJ/140/34</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/140/34</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/140/34</mirrorURL></interface></capability><capability><interface xsi:type="vs:ParamHTTP"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/140/34</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/140/34</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/140/34</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/AJ/140/34/table1 (Catalogued novae and their primary light curve properties)</description><interface xsi:type="vs:ParamHTTP" role="std"><accessURL use="base">https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/140/34/table1?</accessURL><mirrorURL title="VizieR at IUCAA: Pune, India">https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/140/34/table1?</mirrorURL><mirrorURL title="VizieR at SAAO: SAAO, South Africa">http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/140/34/table1?</mirrorURL><queryType>GET</queryType><resultType>text/xml+votable</resultType></interface><maxSR>180.0</maxSR><maxRecords>50000</maxRecords><verbosity>true</verbosity><testQuery><ra>348.024</ra><dec>47.4721389</dec><sr>0.005555555555555556</sr></testQuery></capability><coverage><spatial>6/1694 2922 6319 8669 12888 12962 13216 13286 13800 13999 14024 14201 14228 14254 14336 14393 14409 14447 14630 14634 14694 14847 15014 15036 15385 15386 15502 22076 24487 28718 28746 28762 28771 28772 28786 28787 28798 28833 28869 28873 28875 28879 28971 28973 29002 29191 29214 29285 29287 29308 29478 29664 29871 29900 30215 30284 30300 30303 30306 30315 30324 30389 30474 30500 30502 30652 31866 32006 32017 32048 32121 37888 38045 38919 39397 39888 39890 39991 41543 41583 41671 41738 41822 41860 42387 42494 42837 43031 44381 47822 47864</spatial><footprint ivo-id="ivo://ivoa.net/std/moc">https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/140/34?format=ascii</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>default</name><table><name>J/AJ/140/34/table1</name><description>Catalogued novae and their primary light curve properties</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>Nova</name><description>Nova name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType><flag>primary</flag></column><column><name>Year</name><description>Year of discovery</description><unit>yr</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>T0</name><description>Fiducial time (JD)</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Tpeak</name><description>Peak time (JD)</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>Vpeak</name><description>Peak magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>t2</name><description>Time to decline by 2mag from maximum</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>t3</name><description>Time to decline by 3mag from maximum</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>t6</name><description>? Time to decline by 6mag from maximum</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>t9</name><description>? Time to decline by 9mag from maximum</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>l_VQ</name><description>[~&gt;] Limit flag on VQ</description><ucd>meta.code.error</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>VQ</name><description>Magnitude in quiescence</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>tQ</name><description>? Time of quiescence</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>n_tQ</name><description>[a] bright quiescence (1)</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Class</name><description>Class (2)</description><ucd>meta.code;src.var</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>lc</name><description>light curve</description><ucd>meta.ref.url</ucd><dataType xsi:type="vs:VOTableType" arraysize="*">char</dataType></column><column><name>Simbad</name><description>Simbad column added by the CDS</description><ucd>meta.ref</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><table><name>J/AJ/140/34/table2</name><description>Binned light curves for 92 novae</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>Nova</name><description>Nova name</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="9*">char</dataType></column><column><name>JD</name><description>Julian date of time bin middle</description><unit>d</unit><ucd>time.epoch</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>T</name><description>Middle bin time minus the fiducial time (1)</description><unit>d</unit><ucd>time.interval</ucd><dataType xsi:type="vs:VOTableType">double</dataType></column><column><name>Vmag</name><description>Binned and average V band magnitude</description><unit>mag</unit><ucd>phot.mag;em.opt.V</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_Vmag</name><description>? 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