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<ri:Resource created="2024-01-29T07:40:09Z" 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>Searching in HI for Low Surface Brightness Galaxies</title><shortName>J/AJ/165/263</shortName><identifier>ivo://CDS.VizieR/J/AJ/165/263</identifier><altIdentifier>doi:10.26093/cds/vizier.51650263</altIdentifier><curation><publisher ivo-id="ivo://CDS">CDS</publisher><creator><name>O'Neil K.</name></creator><creator><name>Schneider S.E.</name></creator><creator><name>van Driel W.</name></creator><creator><name>Liu G.</name></creator><creator><name>Joseph T.</name></creator><creator><name>Schwortz A.C.,Butcher Z.</name></creator><date role="Updated">2024-11-06T20:17:21Z</date><date role="Created">2024-01-29T07:40:09Z</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>radio-spectroscopy</subject><description>A search has been made for 21cm HI line emission in a total of 350 unique galaxies from two samples whose optical properties indicate they may be massive. The first consists of 241 low surface brightness (LSB) galaxies of morphological type Sb and later selected from the HyperLeda database and the second consists of 119 LSB galaxies from the UGC with morphological types Sd-m and later. Of the 350 unique galaxies, 239 were observed at the Nancay Radio Telescope, 161 at the Green Bank Telescope, and 66 at the Arecibo telescope. A total of 295 (84.3%) were detected, of which 253 (72.3%) appear to be uncontaminated by any other galaxies within the telescope beam. Finally, of the total detected, uncontaminated galaxies, at least 31 appear to be massive LSB galaxies, with a total HI mass &gt;~1010M{sun}, for H0=70/km/Mpc. If we expand the definition to also include galaxies with significant total (rather than just gas) mass, i.e., those with an inclination-corrected H i line width W50,cor&gt;500km/s, this brings the total number of massive LSB galaxies to 41. There are no obvious trends between the various measured global galaxy properties, particularly between mean surface brightness and galaxy mass.</description><source format="bibcode">2023AJ....165..263O</source><referenceURL>https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/165/263</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/II/294">II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/250">VII/250 : The 2dF Galaxy Redshift Survey (2dFGRS) (2dFGRS Team, 1998-2003)</relatedResource><relatedResource ivo-id="ivo://CDS.VizieR/VII/238">VII/238 : HYPERLEDA. 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Total apparent magnitude in the B-band, from HyperLeda</description><unit>mag</unit><ucd>phot.mag;em.opt.B</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>D25</name><description>[0.2/37.2] Length of the projected major axis of a galaxy (3)</description><unit>arcmin</unit><ucd>phys.angSize</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>b/a</name><description>[0.0/1.0] Axial ratio (4)</description><ucd>phys.angSize;arith.ratio</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Vo</name><description>[-296/25970]? Heliocentric velocity, from optical spectra</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>r_Vo</name><description>Reference for Vopt (bibcode)</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType" arraysize="3*">char</dataType></column><column><name>VHI</name><description>[-86/13517]? Heliocentric velocity, from HI spectra</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>r_VHI</name><description>Reference for VHI (bibcode)</description><ucd>meta.ref;pos.frame</ucd><dataType xsi:type="vs:VOTableType" arraysize="10*">char</dataType></column></table><table><name>J/AJ/165/263/table2</name><description>Average HI values for all detections</description><column><name>Name</name><description>Common name of the object</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">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>Sample</name><description>Surveys for which the observation was made (1)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>Notes</name><description>Indication if the galaxy has notes in Appendix A</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Conf</name><description>[1/3] Contamination (confusion) status for detections (G1)</description><ucd>meta.code</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>VHI</name><description>[228/133323] Central HI line (optical, heliocentric) velocity</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>e_VHI</name><description>[1/45] Uncertainty in VHI (G2)</description><unit>km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>W50</name><description>[10/795] HI line velocity width measured at 50% of the HI profile peak value</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>W50cor</name><description>[16/1459] W50 corrected for random motion effects (2)</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>W20</name><description>[10/913] HI line velocity width measured at 20% of the HI profile peak value</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>rms</name><description>[0.08/6.22] r.m.s. noise level of the HI spectrum (G3)</description><unit>mJy</unit><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FHI</name><description>[0.15/55] Measured integrated HI line flux</description><unit>Jy.km/s</unit><ucd>phot.flux.density;spect.line</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_FHI</name><description>[0.03/1.7] Uncertainty in FHI (G4)</description><unit>Jy.km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logMHI</name><description>[5.82/12.18] Log of the total HI mass (G5)</description><unit>log(solMass)</unit><ucd>phys.mass</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_logMHI</name><description>[0.0/0.72] Uncertainty in logMHI</description><unit>log(solMass)</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Tel</name><description>Telescope(s) used for observation (G6)</description><ucd>instr.setup</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column></table><table><name>J/AJ/165/263/table3</name><description>HI detections, values for individual telescopes when &gt;1 telescope observed a galaxy (HyperLeda sample)</description><column><name>Name</name><description>Common name of the object</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">char</dataType></column><column><name>W50</name><description>[42/988] HI line velocity width measured at 50% of the HI profile peak value</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>e_W50</name><description>[1/120] Uncertainty in W50 (1)</description><unit>km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>W20</name><description>[72/1058] HI line velocity width measured at 20% of the HI profile peak value</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>e_W20</name><description>[1/186] Uncertainty in W20 (2)</description><unit>km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>rms</name><description>[0.26/9.18] r.m.s. noise level of the HI spectrum (G3)</description><unit>mJy</unit><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>FHI</name><description>[0.19/78.03] Measured integrated HI line flux</description><unit>Jy.km/s</unit><ucd>phot.flux.density;spect.line</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_FHI</name><description>[0.03/93.09] Uncertainty in FHI (G5)</description><unit>Jy.km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>logMHI</name><description>[6.63/11.14] Log of the total Hi mass (G5)</description><unit>log(solMass)</unit><ucd>phys.mass</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>e_logMHI</name><description>[0.0/1.2] Uncertainty in logMHI</description><unit>log(solMass)</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">float</dataType></column><column><name>Tel</name><description>Telescope(s) used for observation (G6)</description><ucd>instr.setup</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">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>Notes</name><description>Indication if the galaxy has notes in Appendix A</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Conf</name><description>[1/3] Contamination (confusion) status for detections (G1)</description><ucd>meta.code</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>VHI</name><description>[420/19538] Central HI line (optical, heliocentric) velocity</description><unit>km/s</unit><ucd>phys.veloc;pos.heliocentric</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column><column><name>e_VHI</name><description>[1/60] Uncertainty in VHI (G2)</description><unit>km/s</unit><ucd>stat.error</ucd><dataType xsi:type="vs:VOTableType">int</dataType></column></table><table><name>J/AJ/165/263/table4</name><description>HI r.m.s. values in mJy for all non-detections.</description><column><name>Name</name><description>Common name of the object</description><ucd>meta.id;meta.main</ucd><dataType xsi:type="vs:VOTableType" arraysize="11*">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>Sample</name><description>Survey(s) resulting in a detection (1)</description><ucd>meta.id</ucd><dataType xsi:type="vs:VOTableType" arraysize="6*">char</dataType></column><column><name>Notes</name><description>Indicating if a galaxy has notes in Section A</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="1*">char</dataType></column><column><name>Nan</name><description>Nancay, r.m.s. noise level across the Nancay observed spectra (2)</description><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType" arraysize="8*">char</dataType></column><column><name>GBT</name><description>? r.m.s. noise level across the GBT observed spectra (3)</description><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Are-low</name><description>? low r.m.s noise level across the Arecibo observed spectra in low velocity range (4)</description><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>Are-hi</name><description>? high r.m.s noise level across the Arecibo observed spectra in high velocity range (4)</description><ucd>instr.det.noise</ucd><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column></table><table><name>J/AJ/165/263/ref</name><description>References used for table1</description><column><name>BIB</name><description>BIBcode</description><ucd>meta.bib.bibcode</ucd><dataType xsi:type="vs:VOTableType" arraysize="19*">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>Ref</name><description>Reference used</description><ucd>meta.ref;instr.setup</ucd><dataType xsi:type="vs:VOTableType" arraysize="4*">char</dataType></column><column><name>Author</name><description>Main author</description><ucd>meta.bib.author</ucd><dataType xsi:type="vs:VOTableType" arraysize="17*">char</dataType></column><column><name>Cat.</name><description>Catalog in VizieR</description><ucd>meta.note</ucd><dataType xsi:type="vs:VOTableType" arraysize="16*">char</dataType></column></table></schema></tableset></ri:Resource>