J/ApJ/847/38ivo://CDS.VizieR/J/ApJ/847/38doi:10.26093/cds/vizier.18470038CDSYang H.Malhotra S.Rhoads J.E.Wang J.2020-02-03T07:01:26Z2018-06-28T15:04:30ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyredshiftedvisible-astronomysloan-photometryline-intensitiesSearching for extreme emission line galaxies allows us to find low-mass metal-poor galaxies that are good analogs of high redshift Ly{alpha} emitting galaxies. These low-mass extreme emission line galaxies are also potential Lyman-continuum leakers. Finding them at very low redshifts (z<~0.05) allows us to be sensitive to even lower stellar masses and metallicities. We report on a sample of extreme emission line galaxies at z<~0.05 (blueberry galaxies). We selected them from SDSS broadband images on the basis of their broadband colors and studied their properties with MMT spectroscopy. From the entire SDSS DR12 photometric catalog, we found 51 photometric candidates. We spectroscopically confirm 40 as blueberry galaxies. These blueberries are dwarf starburst galaxies with very small sizes (<1kpc) and very high ionization ([OIII]/[OII]~10-60). They also have some of the lowest stellar masses (log(M/M_{sun}_)~6.5-7.5) and lowest metallicities (7.1<12+log(O/H)<7.8) of starburst galaxies. Thus, they are small counterparts to green pea galaxies and high redshift Ly{alpha} emitting galaxies.2017ApJ...847...38Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/847/38CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/ApJ/844/171 : Ly{alpha} profile in 43 Green Pea galaxies (Yang+, 2017)J/A+A/599/A76 : L-{sigma} relation for HII galaxies (Melnick+, 2017)J/ApJ/819/110 : Extremely metal-poor gal. in SDSS. II. (Sanchez Almeida+ 2016)J/ApJ/803/34 : z~4-10 galaxies from HST legacy fields (Bouwens+, 2015)J/ApJ/765/140 : Stacked spectra of SDSS star forming galaxies (Andrews+, 2013)J/AJ/143/145 : Emission-line objects from ALFALFA (Kellar+, 2012)J/AJ/143/133 : Properties of dwarf galaxies from ALFALFA survey (Huang+, 2012)J/ApJ/725/394 : High-redshift Ly{alpha} emitters (Hu+, 2010)J/AJ/139/279 : Outlying HII regions in HI-selected galaxies (Werk+, 2010)J/ApJ/706/599 : H{alpha} and UV SFR in the local volume (Lee+, 2009)J/A+A/448/955 : Abundances of emission galaxies in SDSS-DR3 (Izotov+, 2006)J/ApJS/147/29 : BRHalpha data of blue compact dwarf gal. (Gil De Paz+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/847/38https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/847/38http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/847/38https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/847/38https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/847/38http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/847/38GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/847/38/table12 (The blueberry galaxies properties (tables 1 and 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/847/38/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/847/38/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/847/38/table12?GETtext/xml+votable180.050000true125.0802911154.527798060.0055555555555555566/353 566 4269 4687 4707 4900 5298 5540 5814 5932 6545 7334 7562 8232 8342 8471 8651 8857 9182 9407 9451 9946 10253 10722 10827 10891 17777 17851 19975 20223 25851 26443 26992 27084 27429 27608 27790 28270 28607 31482https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/847/38?format=asciiOpticaldefaultJ/ApJ/847/38/table12The blueberry galaxies properties (tables 1 and 2)SDSSmeta.id;meta.maincharSimbadNameSimbad column added by the CDSmeta.idcharSeq[2/122] Object IDmeta.idinte_EW(OIII)[26/305] Error on EW([OIII]5007)0.1nmstat.errorfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzspec[0.02/0.06] Redshift, from optical spectrasrc.redshiftdoubleTelTelescope used for getting optical spectrainstr.setupcharE(B-V)MW[0.006/0.4] Milky Way extinction, Schlafly & Finkbeiner (2011ApJ...737..103S)magphot.color.excessfloatu-SDSS[18.3/22.5] Magnitude, SDSS u-band cModelMagmagphot.mag;em.opt.Ufloate_u-SDSS[0.02/0.7] Error on u-SDSSmagstat.errorfloatg-SDSS[17.3/21.4] Magnitude, SDSS g-band cModelMagmagphot.mag;em.opt.Bfloate_g-SDSS[0.01/0.06] Error on g-SDSSmagstat.errorfloatr-SDSS[18/22.1] Magnitude, SDSS r-band cModelMagmagphot.mag;em.opt.Rfloate_r-SDSS[0.01/0.2] Error on r-SDSSmagstat.errorfloati-SDSS[18.2/22] Magnitude, SDSS i-band cModelMagmagphot.mag;em.opt.Ifloate_i-SDSS[0.01/0.2] Error on i-SDSSmagstat.errorfloatz-SDSS[18/21.6] Magnitude, SDSS z-band cModelMagmagphot.mag;em.opt.Ifloate_z-SDSS[0.04/0.8] Error on z-SDSSmagstat.errorfloatg-PS1[17.3/21.4] Magnitude, PANSTARRS1 g-band KronMagmagphot.mag;em.opt.Bfloate_g-PS1[0.003/0.06] Error on g-PS1magstat.errorfloatr-PS1[17.8/22.1] Magnitude, PANSTARRS1 r-band KronMagmagphot.mag;em.opt.Rfloate_r-PS1[0.005/0.2] Error on r-PS1magstat.errorfloati-PS1[18.3/22.1] Magnitude, PANSTARRS1 i-band KronMagmagphot.mag;em.opt.Ifloate_i-PS1[0.007/0.2] Error on i-PS1magstat.errorfloatz-PS1[18.5/22.1]? Magnitude, PANSTARRS1 z-band KronMagmagphot.mag;em.opt.Ifloatnullablee_z-PS1[0.01/0.2]? Error on z-PS1magstat.error;phot.colorfloatnullabley-PS1[18/22]? Magnitude, PANSTARRS1 y-band KronMagmagphot.mag;em.IR.Jfloatnullablee_y-PS1[0.02/0.5]? Error on y-PS1magstat.errorfloatnullableMass[6.6/8.6] Stellar mass (log(M/Msun))log(solMass)phys.massfloat12+log(O/H)[7/8]? Gas metallicity, 12+log(O/H)phys.abund.Zfloatnullablee_12+log(O/H)[0.001/0.2]? error on 12+log(O/H)stat.errorfloatnullableSFR[0.04/1.7] Star formation rate from H{beta} luminositysolMass/yrphys.SFRfloat[OII]3727[1/124]? Flux, [OII]3727, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxfloatnullablee_[OII]3727[0.01/5.2]? Error on [OII]37271e-16mW.m**-2stat.errorfloatnullable[NeIII]3869[1/126] Flux, [NeIII]3869, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxfloate_[NeIII]3869[0.01/3.5] Error on [NeIII]38691e-16mW.m**-2stat.errorfloatHdelta[0.6/64.1] Flux, H{delta}, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxfloate_Hdelta[0.005/1.1] Error on H{delta}1e-16mW.m**-2stat.errorfloatHgamma[0.6/64.1] Flux, H{gamma}, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.flux;em.line.Hgamma;arith.ratiofloate_Hgamma[0.005/1.1] Error on H{gamma}1e-16mW.m**-2stat.errorfloat[OIII]4363[0.4/40] Flux, [OIII]4363, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxfloate_[OIII]4363[0.006/2.6] Error on [OIII]4363,1e-16mW.m**-2stat.errorfloatHbeta[0.3/281] Flux, H{beta}, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.flux;em.line.Hbeta;spect.linefloate_Hbeta[0.001/1] Error, H{beta},1e-16mW.m**-2stat.errorfloat[OIII]4959[0.8/642] Flux, [OIII]4959, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxdoublee_[OIII]4959[0.001/6] Error on [OIII]4959,1e-16mW.m**-2stat.errorfloat[OIII]5007[2.4/1941] Flux, [OIII]5007, in units of 10^-16^erg/s/cm^21e-16mW.m**-2phot.fluxdoublee_[OIII]5007[0.001/79] Error on [OIII]5007,1e-16mW.m**-2stat.errorfloatEW(OII)[8/125]? restframe equivalent width, [OII]37270.1nmspect.line.eqWidthfloatnullableEW(Hbeta)[29/338] restframe equivalent width, H{beta}0.1nmspect.line.eqWidthfloate_EW(Hbeta)[3.9/36.3] Error on EW(H{beta})0.1nmstat.errorfloatEW(OIII)[202/2636] restframe equivalent width, [OIII]50070.1nmspect.line.eqWidthfloatRANdegRight Ascension of nearest neighbor in SDSS spectroscopic catalog (J2000)degpos.eq.raDENdegDeclination of nearest neighbor in SDSS spectroscopic catalog (J2000)degpos.eq.decSep[303/25337] 3D distance to the nearest neighbor in SDSS-DR12 spectroscopic catalogMpcpos.angDistanceintPS1Display the Pan-STARRS release 1 data (II/349) within 0.5" of the galaxymeta.ref.urlcharDR12Display the SDSS-DR12 data (V/147) for the galaxy and the nearest neighbor within 0.5" of galaxy's RA/DEC and neighbor's RANdeg/DENdegmeta.ref.urlcharSloanDisplay the online SDSS data for the nearest object of the main positionmeta.ref.urlchar