J/ApJ/912/49ivo://CDS.VizieR/J/ApJ/912/49doi:10.26093/cds/vizier.19120049CDSMehta V.Scarlata C.Fortson L.Dickinson H.Adams D.Chevallard J.,Charlot S.Beck M.Kruk S.Simmons B.2022-12-05T13:55:41Z2022-11-22T17:30:11ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomysloan-photometrychemical-abundancesredshiftedstar-forming-regionsextinctionGiant, star-forming clumps are a common feature prevalent among high-redshift star-forming galaxies and play a critical role in shaping their chaotic morphologies and yet, their nature and role in galaxy evolution remains to be fully understood. A majority of the effort to study clumps has been focused at high redshifts, and local clump studies have often suffered from small sample sizes. In this work, we present an analysis of clump properties in the local universe, and for the first time, performed with a statistically significant sample. With the help of the citizen science-powered Galaxy Zoo: Hubble project, we select a sample of 92 z<0.06 clumpy galaxies in Sloan Digital Sky Survey Stripe 82 galaxies. Within this sample, we identify 543 clumps using a contrast-based image analysis algorithm and perform photometry as well as estimate their stellar population properties. The overall properties of our z<0.06 clump sample are comparable to the high-redshift clumps. However, contrary to the high-redshift studies, we find no evidence of a gradient in clump ages or masses as a function of their galactocentric distances. Our results challenge the inward migration scenario for clump evolution for the local universe, potentially suggesting a larger contribution of ex situ clumps and/or longer clump migration timescales.2021ApJ...912...49Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/912/49CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)J/ApJ/453/48 : VI photometry of HST faint field galaxies (Driver+ 1995)J/AJ/112/359 : Galaxies in the Hubble Deep Field (van den Bergh+ 1996)J/ApJ/631/85 : Galaxy morphologies in the Hubble UDF (Elmegreen+, 2005)J/A+A/448/955 : Abundances of emission galaxies in SDSS-DR3 (Izotov+, 2006)J/MNRAS/435/2835 : Morphological types from Galaxy Zoo 2 (Willett+, 2013)J/ApJ/794/120 : Sloan Digital Sky Survey coadd. Stripe 82 (Annis+, 2014)J/A+A/581/A103 : CALIFA survey across the Hubble sequence (Gonzalez+, 2015)J/A+A/604/A4 : CALIFA galaxies observational hints (Ruiz-Lara+, 2017)J/ApJ/853/108 : Clumpy galaxies in CANDELS. II. 0.5<=z<3.0 (Guo+, 2018)J/ApJS/234/35 : Stellar pop. synthesis of clumps (Zaragoza-Cardiel+, 2018)J/ApJ/888/92 : Star-forming clumps in luminous IR galaxies (Larson+, 2020)J/ApJ/889/154 : LEGUS obs. of NGC4449 star clusters (Whitmore+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/912/49https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/912/49http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/912/49https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/912/49https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/912/49http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/912/49GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/912/49/table1 (The clump catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/912/49/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/912/49/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/912/49/table1?GETtext/xml+votable180.050000true313.1227725817373-1.07062342859570.0055555555555555566/17407 17661 17741 17743 17746 17748 17750-17751 17755 17764 17768-17769 17777-17778 17807 17811 17815 17818 17822 17827-17828 17832 17834 17858 17981 18002 18006 18024-18025 18027-18029 18032-18033 18061 18068-18069 18072-18073 18075-18076 18083 18085 18176-18177 18749-18750 18765 18781 18792-18793 18840 18851-18852 18861 18866 18881 19023 19032 19034 19041 19048 19057 19091 19095 19108-19109 23201 23203-23205 23208 23212 23214 23232 30033 30036 30038 30041 30044 36863https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/912/49?format=asciiOpticaldefaultJ/ApJ/912/49/table1The clump catalogf_logSFRi=infinitymeta.codecharReRun[2] SDSS rerun numbermeta.id;obsintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_IDNumber of clumps for this galaxymeta.code.multipintnullableRun[106/206] SDSS run numbermeta.idintFi[327/16184] Flux within a Kron-like elliptical (AUTO) i-band aperture (gal_flux_i)uJyphot.flux.density;em.opt.Idoublee_Fi[1.53/8.04] Error for AUTO i-band flux (gal_fluxerr_i)uJystat.errorfloatimag[13.37/17.62] Kron-like elliptical (AUTO) aperture i-band magnitude (gal_mag_i)magphot.mag;em.opt.Ifloate_imag[0.0002/0.008] Error on AUTO i-band magnitude (gal_magerr_i)magstat.error;phot.magfloatFz[328/18198] Flux within a Kron-like elliptical (AUTO) z-band aperture (gal_flux_z)uJyphot.flux.density;em.opt.Idoublee_Fz[5.35/30.52] Error for AUTO z-band flux (gal_fluxerr_z)uJystat.errorfloatzmag[13.24/17.61] Kron-like elliptical (AUTO) aperture z-band magnitude (gal_mag_z)magphot.mag;em.opt.Ifloate_zmag[0.0007/0.03] Error on AUTO z-band magnitude (gal_magerr_z)magstat.error;phot.magfloatE(B-V)[0.019/0.16] Galactic extinction in E(B-V) at galaxy position (gal_ext_ebv)magphot.color.excessfloatAv[0.06/0.48] Galactic extinction in A_V_ at galaxy position (gal_ext_AV)magphys.absorption.galfloatlogMs[7.44/11.12] Log stellar mass (gal_logMst)log(solMass)phys.massfloate_logMs[-0.24/0.14] Lower 1{sigma} error in logMs (gal_logMst_l68)log(solMass)stat.errorfloatE_logMs[-0.005/0.4] Upper 1{sigma} error in logMs (gal_logMst_u68)log(solMass)stat.error;stat.maxfloatlogAge[7.51/10.14] Log stellar age (gal_logage)log(yr)time.agefloate_logAge[-0.4/0.09] Lower 1{sigma} error in logAge (gal_logage_l68)log(yr)stat.error;time.agefloatlogtau[6.5/10.5] Log star-formation timescale; for exponential SFH (gal_logtau)log(yr)time.scalefloate_logtau[-1.05/0.9] Lower 1{sigma} error in logtau (gal_logtau_l68)log(yr)stat.errorfloatE_logtau[-0.12/2.74] Upper 1{sigma} error in logtau (gal_logtau_u68)log(yr)stat.error;stat.maxfloatlogSFR[/1.5]? Log star-formation rate (gal_logSFR)log(solMass.yr**-1)phys.SFRdoublenullablee_logSFR[-0.62/0.2]? Lower 1{sigma} error in logSFR (gal_logSFR_l68)log(solMass.yr**-1)stat.error;phys.SFRfloatnullableE_logSFR[-0.2/]? Upper 1{sigma} error in logSFR (gal_logSFR_u68)log(solMass.yr**-1)stat.error;stat.maxfloatnullableZ[-2.2/0.12] Log stellar metallicity (gal_Z_star)log(Sun)phys.abund.Zfloate_Z[-1.2/0.03] Lower 1{sigma} error in Z (gal_Z_star_l68)log(Sun)stat.error;src.redshiftfloatE_Z[-1.07/1.2] Upper 1{sigma} error in Z (gal_Z_star_u68)log(Sun)stat.error;stat.maxfloatlogOH[6.5/8.9] Gas-phase metallicity; log(OH)+12 (gal_logOH)phys.abundfloate_logOH[-1.2/0.022] Lower 1{sigma} error in logOH (gal_logOH_l68)stat.errorfloatE_logOH[-1.07/1.2] Upper 1{sigma} error in logOH (gal_logOH_u68)stat.error;stat.maxfloatAv5500[0/1.51] Attenuation at 5500{AA} (gal_AV)magphys.absorptionfloate_Av5500[-0.9/0.015] Lower 1{sigma} error in Av5500 (gal_AV_l68)magstat.errorfloatClGC[0.26/16.38] Clump galactocentric distance (clump_distphys)kpcpos.distance;pos.galactocentricfloatClFu[0/88.32] Flux within a Kron-like elliptical (AUTO) u-band aperture (clump_flux_u)uJyphot.flux.density;em.opt.Ufloate_ClFu[0.12/0.31] Error for AUTO u-band flux (clump_fluxerr_u)uJystat.errorfloatClumag[19/27.2]? Kron-like elliptical (AUTO) aperture u-band magnitude (clump_mag_u)magphot.mag;em.opt.Udoublenullablee_Clumag[0.002/4]? Error on AUTO u-band magnitude (clump_magerr_u)magstat.error;phot.magdoublenullableClFg[0/178] Flux within a Kron-like elliptical (AUTO) g-band aperture (clump_flux_g)uJyphot.flux.density;em.opt.Bfloate_ClFg[0.06/0.2] Error for AUTO g-band flux (clump_fluxerr_g)uJystat.errorfloatClgmag[18/24.6]? Kron-like elliptical (AUTO) aperture g-band magnitude (clump_mag_g)magphot.mag;em.opt.Bdoublenullablee_Clgmag[0.0006/0.3]? Error on AUTO g-band magnitude (clump_magerr_g)magstat.error;phot.magdoublenullableClFr[0/176] Flux within a Kron-like elliptical (AUTO) r-band aperture (clump_flux_r)uJyphot.flux.density;em.opt.Rfloate_ClFr[0.12/0.2] Error for AUTO r-band flux (clump_fluxerr_r)uJystat.errorfloatClrmag[18/23.8]? Kron-like elliptical (AUTO) aperture r-band magnitude (clump_mag_r)magphot.mag;em.opt.Rdoublenullablee_Clrmag[0.001/0.2]? Error on AUTO r-band magnitude (clump_magerr_r)magstat.error;phot.magdoublenullableClFi[0/201] Flux within a Kron-like elliptical (AUTO) i-band aperture (clump_flux_i)uJyphot.flux.density;em.opt.Ifloate_ClFi[0.19/0.3] Error for AUTO i-band flux (clump_fluxerr_i)uJystat.errorfloatClimag[18/24.7]? Kron-like elliptical (AUTO) aperture i-band magnitude (clump_mag_i)magphot.mag;em.opt.Idoublenullablee_Climag[0.001/0.5]? Error on AUTO i-band magnitude (clump_magerr_i)magstat.error;phot.magdoublenullableClFz[0/223] Flux within a Kron-like elliptical (AUTO) z-band aperture (clump_flux_z)uJyphot.flux.density;em.opt.Ifloate_ClFz[0.7/1.2] Error for AUTO z-band flux (clump_fluxerr_z)uJystat.errorfloatClzmag[18/27.1]? Kron-like elliptical (AUTO) aperture z-band magnitude (clump_mag_z)magphot.mag;em.opt.Idoublenullablee_Clzmag[0.004/17.22]? Error on AUTO z-band magnitude (clump_magerr_z)magstat.error;phot.magdoublenullableCllogSFR[-3.75/1.1] Log star-formation rate (clump_logSFR)log(solMass.yr**-1)phys.SFRfloate_CllogSFR[-1.56/0.3] Lower 1{sigma} error on CllogSFR (clump_logSFR_l68)log(solMass.yr**-1)stat.errorfloatRAGdegRight Ascension of the galaxy center of mass (CoM) (J2000) (ra)degpos.eq.raDEGdeg[-1.25/1.25] Declination of the galaxy center of mass (CoM) (J2000) (dec)degpos.eq.deczDR14[0.0059/0.06] Galaxy redshift available from DR14 (redshift)src.redshift;pos.heliocentricfloatSpObjIDSDSS spectrum ID number centered on the galaxy, if available (specobjid)meta.idcharCamCol[1/6] SDSS camera columnmeta.numberintField[79/779] SDSS field numbermeta.id;obs.fieldintObj[12/1639] SDSS object ID within the fieldmeta.idintuPSF[1.26/1.71] u-band PSF FWHM (psf-fwhm-u)arcsecinstr.det.psffloatgPSF[1.25/1.53] g-band PSF FWHM (psf-fwhm-g)arcsecinstr.det.psffloatrPSF[1.11/1.52] r-band PSF FWHM (psf-fwhm-r)arcsecinstr.det.psffloatiPSF[1.03/1.5] i-band PSF FWHM (psf-fwhm-i)arcsecinstr.det.psffloatzPSF[1.06/1.5] z-band PSF FWHM (psf-fwhm-z)arcsecinstr.det.psffloatIDGalaxy Identification number in SDSS Stripe 82 coadd-epoch catalogmeta.id;meta.maincharReff[2.31/14.07] Galaxy effective radius (gal_reff)arcsecphys.angSizefloatamaj[2.45/18.07] Galaxy semi-major axis (gal_sma)arcsecphys.angSize.smajAxisfloatbmin[0/9.24] Galaxy semi-minor axis (gal_smb)arcsecphys.angSize.sminAxisfloatPA[-45/44] Galaxy position angle (gal_theta)degpos.posAngfloatFu[106/3189] Flux within a Kron-like elliptical (AUTO) u-band aperture (gal_flux_u)uJyphot.flux.density;em.opt.Udoublee_Fu[0.9/9] Error for AUTO u-band flux (gal_fluxerr_u)uJystat.errorfloatumag[15.14/18.83] Kron-like elliptical (AUTO) aperture u-band magnitude (gal_mag_u)magphot.mag;em.opt.Ufloate_umag[0.0013/0.03] Error on AUTO u-band magnitude (gal_magerr_u)magstat.error;phot.magfloatFg[284/8322] Flux within a Kron-like elliptical (AUTO) g-band aperture (gal_flux_g)uJyphot.flux.density;em.opt.Bdoublee_Fg[0.62/4.11] Error for AUTO g-band flux (gal_fluxerr_g)uJystat.errorfloatgmag[14.09/17.77] Kron-like elliptical (AUTO) aperture g-band magnitude (gal_mag_g)magphot.mag;em.opt.Bfloate_gmag[0.0002/0.006] Error on AUTO g-band magnitude (gal_magerr_g)magstat.error;phot.magfloatFr[332/13235] Flux within a Kron-like elliptical (AUTO) r-band aperture (gal_flux_r)uJyphot.flux.density;em.opt.Rdoublee_Fr[0.93/5.7] Error for AUTO r-band flux (gal_fluxerr_r)uJystat.errorfloatrmag[13.59/17.6] Kron-like elliptical (AUTO) aperture r-band magnitude (gal_mag_r)magphot.mag;em.opt.Rfloate_rmag[0.0002/0.006] Error on AUTO r-band magnitude (gal_magerr_r)magstat.error;phot.magfloatE_logAge[-0.011/1.61] Upper 1{sigma} error in logAge (gal_logage_u68)log(yr)stat.error;stat.maxfloatE_Av5500[-0.04/0.26] Upper 1{sigma} error in Av5500 (gal_AV_u68)magstat.error;stat.maxfloatClump[1/48] Clump identification number (clump_id)meta.idintRAJ2000Clump Right Ascension (J2000) (clump_ra)degpos.eq.ra;meta.mainDEJ2000[-1.25/1.25] Clump Declination (J2000) (clump_dec)degpos.eq.dec;meta.mainClspIDSDSS spectrum ID number centered on the clump, if available (clump_specobjid)meta.idcharProx[0/1] Proximity flag for the clump (clump_prox_flag)meta.codeintClDist[1.29/40.87] Clump galactocentric distance (clump_distance)arcsecpos.distance;pos.galactocentricfloatClDreff[0.15/4.68] Clump galactocentric distance normalized by galaxy effective radius (clump_distnorm)pos.distancefloatClDamaj[0.12/3.3] Clump galactocentric distance normalized by galaxy semi-major axis (clump_dist_sma)pos.distancefloatCllogMs[4/9.6] Log stellar mass (clump_logMst)log(solMass)phys.massfloate_CllogMs[-0.6/1.2] Lower 1{sigma} error on CllogMs (clump_logMst_l68)log(solMass)stat.errorfloatE_CllogMs[-0.1/1.5] Upper 1{sigma} error on CllogMs (clump_logMst_u68)log(solMass)stat.error;stat.maxfloatCllogAge[6/10.2] Log stellar age (clump_logage)log(yr)time.agefloate_CllogAge[-1.63/2.3] Lower 1{sigma} error on CllogAge (clump_logage_l68)log(yr)stat.errorfloatE_CllogAge[-0.15/3.3] Upper 1{sigma} error on CllogAge (clump_logage_u68)log(yr)stat.error;stat.maxfloatE_CllogSFR[-0.9/0.91] Upper 1{sigma} error on CllogSFR (clump_logSFR_u68)log(solMass.yr**-1)stat.error;stat.maxfloatClZ[-1.52/0.007] Log stellar metallicity (clump_Z_star)log(Sun)phys.abund.Zfloate_ClZ[-1.03/0.21] Lower 1{sigma} error on ClZ (clump_Z_star_l68)log(Sun)stat.errorfloatE_ClZ[-0.2/0.94] Upper 1{sigma} error on ClZ (clump_Z_star_u68)log(Sun)stat.error;stat.maxfloatCllogOH[7.19/8.72] Gas-phase metallicity; log(OH)+12 (clump_logOH)phys.abundfloate_CllogOH[-1.04/0.21] Lower 1{sigma} error on CllogOH (clump_logOH_l68)stat.errorfloatE_CllogOH[-0.2/0.95] Upper 1{sigma} error on CllogOH (clump_logOH_u68)stat.error;stat.maxfloatClAv[0/4.4] Attenuation at 5500{AA} (clump_AV)magphys.absorptionfloate_ClAv[-1.9/0.1] Lower 1{sigma} error on ClAv (clump_AV_l68)magstat.errorfloatE_ClAv[-0.72/1.02] Upper 1{sigma} error on ClAv (clump_AV_u68)magstat.error;stat.maxfloatSloanDisplay the online SDSS-DR16 data for the nearest objectmeta.ref.urlchar