J/ApJ/927/81ivo://CDS.VizieR/J/ApJ/927/81doi:10.26093/cds/vizier.19270081CDSBouwens R.J.Illingworth G.D.van Dokkum P.G.Oesch P.A.Stefanon M.,Ribeiro B.2024-09-03T20:11:06Z2023-12-22T12:36:54ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensingabsolute-magnitudeultraviolet-astronomygalaxy-radiiWe constrain the rest-UV size-luminosity relation for star-forming galaxies at z~4 and z~6, 7, and 8 identified behind clusters from the Hubble Frontier Fields (HFF) program. The size-luminosity relation is key to deriving accurate luminosity functions (LF) for faint galaxies. Making use of the latest lensing models and full data set for these clusters, lensing-corrected sizes and luminosities are derived for 68 z~4, 184 z~6, 93 z ~7, and 53 z~8 galaxies. We show that size measurements can be reliably measured up to linear magnifications of ~30x, where the lensing models are well calibrated. The sizes we measure span a >1dex range, from <50pc to >~500pc. Uncertainties are based on both the formal fit errors and systematic differences between the public lensing models. These uncertainties range from ~10pc for the smallest sources to 100pc for the largest. Using a forward-modeling procedure to model the impact of incompleteness and magnification uncertainties, we characterize the size-luminosity relation at both z~4 and z~6-8. We find that the source sizes of star-forming galaxies at z~4 and z~6-8 scale with luminosity L as L^0.54+/-0.08^ and L_0.40+/-0.04^, respectively, such that lower-luminosity (>~-18mag) galaxies are smaller than expected from extrapolating the size-luminosity relation at high luminosities (<~-18mag). The new evidence for a steeper size-luminosity relation (3{sigma}) adds to earlier evidence for small sizes based on the prevalence of highly magnified galaxies in high-shear regions, theoretical arguments against upturns in the LFs, and other independent determinations of the size-luminosity relation from the HFF clusters.2022ApJ...927...81Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/927/81CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/AJ/127/2856 : Brown dwarfs in the 2MASS Survey (Burgasser+, 2004)J/AJ/132/1729 : HUDF BVI-dropout sources (Beckwith+, 2006)J/ApJ/728/27 : Chandra & AAOmega observations of Abell 2744 (Owers+, 2011)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/ApJ/762/L30 : MCS J0416.1-2403 strong lensing analysis (Zitrin+, 2013)J/ApJ/793/115 : UV-continuum slopes beta for z~4-8 galaxies (Bouwens+, 2014)J/MNRAS/444/268 : HST Frontier Fields clusters (Richard+, 2014)J/ApJ/803/34 : z~4-10 galaxies from HST legacy fields (Bouwens+, 2015)J/MNRAS/452/1437 : Abell 2744 strong-lensing analysis (Jauzac+, 2015)J/ApJS/219/15 : Morphologies of z=0-10 galaxies with HST (Shibuya+, 2015)J/ApJ/801/44 : HST lensing analysis of the CLASH sample (Zitrin+, 2015)J/ApJ/819/114 : Strong lensing mass modeling of 4 HFF cl. (Kawamata+, 2016)J/ApJ/820/98 : Galaxy cand. in the Hubble Frontier Fields (Laporte+, 2016)J/A+A/590/A31 : ASTRODEEP Frontier Fields Catalogues (Merlin+, 2016)J/ApJ/843/41 : HST/WFC3 obs. of z~2-8 gal. in 4 HFF cl. (Bouwens+, 2017)J/A+A/600/A90 : MACS J0416.1-2403 redshift catalogue (Caminha+, 2017)J/MNRAS/469/3946 : Abell 370 MUSE redshifts (Lagattuta+, 2017)J/ApJ/835/113 : Gal. >~6 from the Hubble Frontier Fields (Livermore+, 2017)J/A+A/608/A142 : Fornax Deep Survey with VST. III. LSB gal. (Venhola+, 2017)J/ApJ/854/73 : Full-data results of HFF: galaxies z~6-9 (Ishigaki+, 2018)J/ApJ/855/4 : Lyman break galaxies at z~6-9 from HFF (Kawamata+, 2018)J/MNRAS/473/663 : MUSE and HFFs Photometry of A2744 (Mahler+, 2018)J/A+A/620/A165 : Fornax Deep Survey with VST. IV. dwarf gal. (Venhola+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/927/81https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/927/81http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/927/81https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/927/81https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/927/81http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/927/81GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/927/81/table2 (Properties of the present compilation z=6-8 and z~4 sources over the HFF clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/927/81/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/927/81/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/927/81/table2?GETtext/xml+votable180.050000true109.39587537.726250.0055555555555555566/6383 16486 17741 28448 34793 46474 46496https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/927/81?format=asciiUVdefaultJ/ApJ/927/81/table2Properties of the present compilation z=6-8 and z~4 sources over the HFF clustersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource IDmeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainUVMag[-21.7/-12.5] Absolute AB magnitude in UV continuum (1)magphys.magAbs;spect.continuum;em.UVfloate_UVMag[0/3]? Lower 1{sigma} uncertainty on UVMagmagstat.error;phot.magfloatnullableE_UVMag[0/4]? Upper 1{sigma} uncertainty on UVMagmagstat.error;stat.maxfloatnullableTMagnf[1.3/235] Total Magnification Factor, {mu} (2)stat.paramfloate_TMagnf[0/208]? Lower 1{sigma} uncertainty on TMagnfstat.errorfloatnullableE_TMagnf[0/5473]? Upper 1{sigma} uncertainty on TMagnfstat.error;stat.maxfloatnullableLMagnf[1.3/153] Linear Magnification Factor, {mu}_1D_ (3)stat.paramfloate_LMagnf[0/130]? Lower 1{sigma} uncertainty on LMagnfstat.errorfloatnullableE_LMagnf[0/950]? Upper 1{sigma} uncertainty on LMagnfstat.error;stat.maxfloatnullablere[9/942] Half-Light Radius (1)pcphys.size.radiusinte_re[4/239]? Lower 1{sigma} uncertainty on repcstat.errorintnullableE_re[8/676]? Upper 1{sigma} uncertainty on repcstat.error;stat.maxintnullableB17Display data from Bouwens+ 2017, J/ApJ/843/41 within 3"meta.ref.urlintnullable