J/A+A/365/1ivo://CDS.VizieR/J/A+A/365/1doi:10.26093/cds/vizier.33650001CDSMatthews L.D.van Driel W.Monnier-Ragaigne D.2000-12-23T12:42:37Z2000-12-23T13:41:52ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frradio-galaxiesradial-velocityh-i-line-emissionWe have used the Nancay Radio Telescope to obtain new global HI data for 16 giant low surface brightness (LSB) galaxies. Our targets have optical luminosities and disk scale lengths at the high end for spiral galaxies (L_B_~10^10^L_{sun}_ and h_r_>6kpc for H_0_=75km/s/Mpc), but they have diffuse stellar disks, with mean disk surface brightnesses >1 magnitude fainter than normal giant spirals. Thirteen of the galaxies previously had been detected in HI by other workers, but the published HI observations were either confused, resolved by the telescope beam, of low signal-to-noise, or showed significant discrepancies between different authors. For the other 3 galaxies, no HI data were previously available. Several of the galaxies were resolved by the Nancay 3.6' E-W beam, so global parameters were derived from multiple-point mapping observations. Typical HI masses for our sample are >10^10^M_{sun}_, with M_HI_/L_B_=0.3-1.7 (in solar units). All of the observed galaxies have published optical surface photometry, and we have compiled key optical measurements for these objects from the literature. We frequently find significant variations among physical parameters of giant LSB galaxies reported by various workers.2001A&A...365....1Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/365/1CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/365/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/365/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/365/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/365/1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/365/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/365/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalRadiodefaultJ/A+A/365/1/table2New measured global HI parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the sourcemeta.id;meta.maincharprimaryn_Name[*] Note on Name (1)meta.notecharrmsrmsmJyinstr.det.noisefloatFmaxPeak flux densitymJyphot.flux.density;em.radio.750-1500MHzfloatW20Raw line width at 20% peak maximumkm/sspect.line.widthintu_W20Uncertainty flag on W20 (2)meta.code.errorcharW50Raw line width at 50% peak maximumkm/sspect.line.widthintu_W50Uncertainty flag on W50 (2)meta.code.errorcharHRVHeliocentric radial velocitykm/sphys.veloc;pos.heliocentricinte_HRVError on radial velocity measurementkm/sstat.errorintSHIIntegrated HI line fluxJy.km/sphot.fluxfloate_SHIError on integrated HI line fluxJy.km/sstat.errorfloatS/NSignal-to-noisestat.snrfloatNotesNotesmeta.notecharJ/A+A/365/1/table4Derived HI parametersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the sourcemeta.id;meta.maincharprimaryn_NameNote on Name (1)meta.notecharW20cCorrected HI linewidth at 20% peak maximumkm/sspect.line.widthintW50cCorrected HI linewidth at 50% peak maximumkm/sspect.line.widthintVLSRRadial velocity corrected to Local Rest Framekm/sphys.veloc;pos.lsrintDistDistanceMpcpos.distancefloatlogMHILogarithm of HI masslog(solMass)phys.massfloatMHI/LBRatio of HI mass to blue luminositySunphys.composition.massLightRatiofloatDHI? Estimated HI diameterarcminphys.angSize;srcfloatnullableu_DHIUncertainty flag on DHI (2)meta.code.errorchar