J/AJ/144/134ivo://CDS.VizieR/J/AJ/144/134doi:10.26093/cds/vizier.51440134CDSHunter D.A.Ficut-Vicas D.Ashley T.Brinks E.Cigan P.,Elmegreen B.G.Heesen V.Herrmann K.A.Johnson M.Oh S.-H.Rupen M.P.,Schruba A.Simpson C.E.Walter F.Westpfahl D.J.Young L.M.,Zhang H.-X.2026-03-18T09:36:34Z2013-12-12T07:56:28ZCDS support team

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

cds-question@unistra.frh-i-line-emissiongalaxiesinterstellar-reddeningchemical-abundancesWe present LITTLE THINGS (Local Irregulars That Trace Luminosity Extremes, The HI Nearby Galaxy Survey), which is aimed at determining what drives star formation in dwarf galaxies. This is a multi-wavelength survey of 37 dwarf irregular and 4 blue compact dwarf galaxies that is centered around HI-line data obtained with the National Radio Astronomy Observatory (NRAO) Very Large Array (VLA). The HI-line data are characterized by high sensitivity ({<=}1.1mJy/beam per channel), high spectral resolution ({<=}2.6km/s), and high angular resolution (~6"). The LITTLE THINGS sample contains dwarf galaxies that are relatively nearby ({<=}10.3Mpc; 6" is {<=}300pc), that were known to contain atomic hydrogen, the fuel for star formation, and that cover a large range in dwarf galactic properties. We describe our VLA data acquisition, calibration, and mapping procedures, as well as HI map characteristics, and show channel maps, moment maps, velocity-flux profiles, and surface gas density profiles. In addition to the HI data we have GALEX UV and ground-based UBV and H{alpha} images for most of the galaxies, and JHK images for some. Spitzer mid-IR images are available for many of the galaxies as well. These data sets are available online.2012AJ....144..134Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/144/134CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/77 : HI spectral properties of galaxies (Springob+, 2005)J/AJ/142/145 : Outer disks of S0-Sb gal. II. Surface-brightnessJ/AJ/140/1194 : FUV/HI relations in nearby galaxies (Bigiel+, 2010)J/ApJS/190/233 : Spectroscopy & abundances of SINGS galaxies (Moustakas+, 2010)J/ApJ/703/517 : The Spitzer Local Volume Legacy: IR photometry (Dale+, 2009)J/AJ/136/2563 : HI Nearby Galaxy Survey, THINGS (Walter+, 2008)J/AJ/133/2569 : Arecibo legacy fast ALFA survey III. (Giovanelli+, 2007)J/ApJS/164/81 : Spectrophotometry of nearby galaxies (Moustakas+, 2006)J/ApJS/162/49 : UBV imaging of irregular galaxies (Hunter+, 2006)J/ApJ/647/1056 : ARAUCARIA project : NGC 6822 Cepheid variables (Gieren+, 2006)J/ApJ/636/214 : HII regions in dwarf irregular galaxies (van Zee+, 2006)J/AJ/128/2170 : H{alpha} imaging of irregular galaxies (Hunter+, 2004)J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004)J/AJ/128/16 : HIPASS Bright Galaxy Catalog (Koribalski+, 2004)J/A+A/398/479 : Local galaxy flows within 5 Mpc (Karachentsev+, 2003)J/AJ/125/1261 : VI photometry of Sextans A Cepheids (Dolphin+, 2003)J/AJ/123/3154 : RV light curves of variable stars in Leo A (Dolphin+, 2002)J/ApJS/131/47 : Gas-rich dwarfs from the POSS-II. III. (Eder+, 2000)J/AJ/116/146 : UGC 6456 HST photometry (Lynds+ 1998)http://www.lowell.edu/users/dah/littlethings/index.html : LITTLE THINGShttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/144/134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/144/134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/144/134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/144/134https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/144/134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/144/134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/144/134/galaxies (HI data of the galaxies (tables 1, 4, and 6 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/144/134/galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/144/134/galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/144/134/galaxies?GETtext/xml+votable180.050000true189.667532.76111110.0055555555555555566/3042 3389 4522 5287 5607 5978 6399 6502 6560 7523 7769 7799 7878 7956 7970 8028 8908 10762 10881 10970 11019 11041 11120 11143 11933 17165 18041 19833 19990 22495 26858 27351 27926 28149 28510 28610 28631 28636 29699 29718 48942https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/144/134?format=asciiRadiodefaultJ/AJ/144/134/galaxiesHI data of the galaxies (tables 1, 4, and 6 of the paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClGalaxy class: Im=dwarf irregular, BCD=Blue Compact Dwarfmeta.code;src.morphcharNameGalaxy namemeta.id;meta.maincharf_Name[a] The data for the galaxy NGC 6822 require special treatment (see section 2.1). So NGC 6822 is not included in tables 4 and 6.meta.codecharPGC? Galaxy PGC identifier (from NED)meta.idintnullableNEDNED column added by the CDSmeta.ref.urlcharLEDAmeta.ref.urlchar_RAPositions from table 6 of this paper or from SIMBAD for NGC 6822 (right ascension part)degpos.eq.ra;meta.main_DEPositions from table 6 of this paper or from SIMBAD for NGC 6822 (declination part)degpos.eq.dec;meta.mainOName1Other name (from NED) (1)meta.idcharOName2Other name (from NED)meta.idcharOName3Other name (from NED)meta.idcharr_DistReference for the distance to the galaxy (2)meta.ref;pos.framecharf_[O/H][*] Empirical estimation of [O/H] (7)meta.codecharSimbadNameSimbad column added by the CDSmeta.idcharnullableUGC? Galaxy UGC identifier (from NED)meta.idintnullableDistGalaxy distanceMpcpos.distance;pos.heliocentricfloatVMagGalaxy absolute magnitudemagphys.magAbsfloatRad? Holmberg radius R_H_ (3)arcminphys.angSizefloatnullableRdThe disk scale length (4)kpcsrc.morph.scLengthfloate_RdUncertainty in Rdkpcstat.errorfloatE(B-V)Foreground reddening from Burstein & Heiles (1984ApJS...54...33B)magphot.color.excessfloatlogSFR1? Star formation rate from H{alpha} (log SFR^H{alpha}^_D_) (5)log(solMass.yr**-1.kpc**-2)phys.SFRfloatnullablee_logSFR1? Uncertainty in logSFR1log(solMass.yr**-1.kpc**-2)stat.errorfloatnullablelogSFR2? Star formation rate from UV (log SFR^FUV^_D_) (6)log(solMass.yr**-1.kpc**-2)phys.SFRfloatnullablee_logSFR2? Uncertainty in logSFR2log(solMass.yr**-1.kpc**-2)stat.errorfloatnullable[O/H]Oxygen abundance 12+log(O/H) (measure of the metallicity of the galaxy) (8)phys.abundfloate_[O/H]? Uncertainty in [O/H]stat.error;phys.abundfloatnullabler_[O/H]Reference for [O/H]meta.ref;pos.frameintFactor? Conversion factor for mass estimation (in units of M{sun}/(Jy.m.s^-1^/beam)) (9)arith.factor;arith.ratiofloatnullableFlux? Integrated flux logS_{nu}_ (in units of (Jy/beam).m/s) (10)log(Jy.m.s**-1)phot.fluxfloatnullableMHI? Log of the HI mass (logM_HI_)log(solMass)phys.massfloatnullableRAJ2000? Hour of right ascension (J2000)pos.eq.ranullableDEJ2000? Degree of declination (J2000)pos.eq.decnullablePA[-90/90]? Position angledegpos.posAngfloatnullableb/a? Minor-to-major axis ratio as measured in an outer V-band surface brightness isophotephys.angSize;arith.ratiofloatnullablei? Inclination (11)degsrc.orbital.inclinationfloatnullableCatO15Link to the Oh+2015 catalog (J/AJ/149/180) datameta.ref;pos.frameintnullableJ/AJ/144/134/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintBibCodeBibliographic codemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar