J/ApJ/791/18ivo://CDS.VizieR/J/ApJ/791/18doi:10.26093/cds/vizier.17910018CDSBond N.A.Gardner J.P.De Mello D.F.Teplitz H.I.Rafelski M.,Koekemoer A.M.Coe D.Grogin N.Gawiser E.Ravindranath S.Scarlata C.2017-12-18T07:57:01Z2017-03-29T14:18:32ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryultraviolet-astronomyredshiftedgalaxy-classification-systemsWe present the rest-frame UV wavelength dependence of the Petrosian-like half-light radius (r_50_), and the concentration parameter for a sample of 198 star-forming galaxies at 0.5 < z < 1.5. We find a ~5% decrease in r_50_ from 1500 {AA} to 3000 {AA}, with half-light radii at 3000 {AA} ranging from 0.6 kpc to 6 kpc. We also find a decrease in concentration of ~0.07 (1.9 < C_3000_< 3.9). The lack of a strong relationship between r_50_and wavelength is consistent with a model in which clumpy star formation is distributed over length scales comparable to the galaxy's rest-frame optical light. While the wavelength dependence of r_50_is independent of size at all redshifts, concentration decreases more sharply in the far-UV (~1500 {AA}) for large galaxies at z ~ 1. This decrease in concentration is caused by a flattening of the inner ~20% of the light profile in disk-like galaxies, indicating that the central regions have different UV colors than the rest of the galaxy. We interpret this as a bulge component with older stellar populations and/or more dust. The size-dependent decrease in concentration is less dramatic at z ~ 2, suggesting that bulges are less dusty, younger, and/or less massive than the rest of the galaxy at higher redshifts.2014ApJ...791...18Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/791/18CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/167 : Atlas of UV spectra of star-forming galaxies (Kinney+ 1993)J/ApJS/147/1 : Classification of nearby galaxies (Conselice+, 2003)J/AJ/132/1729 : Hubble Ultra Deep Field BVI-dropout sources (Beckwith+, 2006)J/AJ/132/926 : Galaxies in the Hubble Ultra Deep Field (Coe+, 2006)J/ApJ/706/553 : Fluxes in nearby star-forming galaxies (Boquien+, 2009)J/A+A/556/A55 : Multi-color photometry of star-forming galaxies (Ilbert+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/791/18https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/791/18http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/791/18https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/791/18https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/791/18http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/791/18GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/791/18/table1 (Galaxy Samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/791/18/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/791/18/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/791/18/table1?GETtext/xml+votable180.050000true53.16050833-27.810646390.0055555555555555566/35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/791/18?format=asciiUVOpticaldefaultJ/ApJ/791/18/table1Galaxy SamplesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[CBS2006]Galaxy number according to Coe et al. (2006, J/AJ/132/926) [CBS2006] NNNNN in Simbadmeta.idintRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainzPhotometric redshiftsrc.redshiftfloatMag15001500 {AA} rest-frame Absolute magnitudemagphys.magAbsfloate_Mag1500Error on Mag1500magstat.errorfloatr3000Petrosian-like half-light radius (r50) at rest-frame 3000 {AA} (1976ApJ...209L...1P) (2)arcsecphys.angSize;srcfloate_r3000Error on r3000arcsecstat.errorfloatC3000Concentration parameter at rest-frame 2976 {AA} (3)stat.paramfloate_C3000Error on C3000stat.errorfloatSimbadSimbad column added by the CDSmeta.ref.urlchar