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<ri:Resource created="2021-01-05T13:07:33Z" 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>LITTLE THINGS catalog of HI holes in 41 galaxies</title><shortName>J/AJ/160/66</shortName><identifier>ivo://CDS.VizieR/J/AJ/160/66</identifier><altIdentifier>doi:10.26093/cds/vizier.51600066</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>Pokhrel N.R.</name></creator><creator><name>Simpson C.E.</name></creator><creator><name>Bagetakos I.</name></creator><date role="Updated">2022-11-07T07:08:53Z</date><date role="Created">2021-01-05T13:07:33Z</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>galaxies</subject><subject>interstellar-medium</subject><subject>star-forming-regions</subject><subject>h-i-line-emission</subject><subject>radio-astronomy</subject><description>We present a catalog of holes and shells in the neutral atomic hydrogen (HI) of 41 gas-rich dwarf galaxies in LITTLE THINGS (Local Irregulars That Trace Luminosity Extremes, The HI Nearby Galaxy Survey). We analyzed their properties as part of an investigation into the relation between star formation and structures and kinematics in the HI of small galaxies. We confirmed 306 holes between 38pc (our resolution limit) and 2.3kpc, with expansion velocities up to 30km/s. The global star formation rates (SFRs) measured by H{alpha} and far-UV (FUV) emission are consistent with those estimated from the energy required to create the cataloged holes in our sample. Although we found no obvious correlation between global star forming regions (SFRs) and the HI surface and volume porosities of our sample, two of the four galaxies with the lowest porosity and the two galaxies with the highest porosity have no recent star formation as measured by H{alpha} and FUV emission.</description><source format="bibcode">2020AJ....160...66P</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/66</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/VIII/11">VIII/11 : Berkeley Low-Latitude H I Survey (Weaver+ 1973)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/229/362">J/A+A/229/362 : Small-scale structures in HI hole of M33 (Deul+, 1990)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/128/2170">J/AJ/128/2170 : H{alpha} imaging of irregular galaxies (Hunter+, 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/127/2031">J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/437/101">J/A+A/437/101 : HI shells in the outer Milky Way (Ehlerova+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJ/621/673">J/ApJ/621/673 : Line indices for 124 early-type galaxies (Thomas+, 2005)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/162/49">J/ApJS/162/49 : UBV imaging of irregular galaxies (Hunter+, 2006)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/173/185">J/ApJS/173/185 : GALEX ultraviolet atlas of nearby galaxies (Gil de Paz+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/ApJS/173/538">J/ApJS/173/538 : XUV-Disk galaxies in the Local Universe (Thilker+, 2007)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/136/2563">J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/496/177">J/A+A/496/177 : JHKs and GLIMPSE photometry of RCW 120 (Deharveng+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/141/23">J/AJ/141/23 : HI holes in THINGS galaxies (Bagetakos+, 2011)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/144/134">J/AJ/144/134 : LITTLE THINGS survey of nearby dwarf galaxies (Hunter+, 2012)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/A+A/550/A23">J/A+A/550/A23 : HI shells in Leiden/Argentina/Bonn HI survey (Ehlerova+, 2013)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/J/AJ/146/104">J/AJ/146/104 : Dwarf galaxies surface brightness profiles I. 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