J/ApJ/897/41ivo://CDS.VizieR/J/ApJ/897/41doi:10.26093/cds/vizier.18970041CDSSmith B.M.Windhorst R.A.Cohen S.H.Koekemoer A.M.Jansen R.A.,White C.Borthakur S.Hathi N.Jiang L.Rutkowski M.Ryan R.E.,Inoue A.K.O'Connell R.W.MacKenty J.W.Conselice C.J.Silk J.I.2023-06-14T14:32:16Z2021-10-18T06:47:09ZCDS support team

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

cds-question@unistra.fractive-galactic-nucleiredshiftedinfrared-astronomyextinctionstar-forming-regionsWe present our analysis of the Lyman continuum (LyC) emission and escape fraction of 111 spectroscopically verified galaxies with and without active galactic nuclei (AGN) from 2.26<z<4.3. We extended our ERS sample from Smith et al. with 64 galaxies in the GOODS North and South fields using WFC3/UVIS F225W, F275W, and F336W mosaics we independently drizzled using the HDUV, CANDELS, and UVUDF data. Among the 17 AGN from the 111 galaxies, one provided a LyC detection in F275W at m_AB_=23.19mag (signal-to-noise ratio, S/N~133) and GALEX NUV at m_AB_=23.77mag (S/N~13). We simultaneously fit SDSS and Chandra spectra of this AGN to an accretion disk and Comptonization model, and find f_esc_ values of f_esc_^F275W^~28_-4_^+20^% and f_esc_^NUV^~30_-5_^+22^% . For the remaining 110 galaxies, we stack image cutouts that capture their LyC emission using the F225W, F275W, and F336W data of the GOODS and ERS samples, and both combined, as well as subsamples of galaxies with and without AGN, and all galaxies. We find the stack of 17 AGN dominate the LyC production from <z>~2.3-4.3 by a factor of ~10 compared to all 94 galaxies without AGN. While the IGM of the early universe may have been reionized mostly by massive stars, there is evidence that a significant portion of the ionizing energy came from AGN.2020ApJ...897...41Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/897/41CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/261 : GOODS initial results (Giavalisco+, 2004)II/335 : Revised catalog of GALEX UV sources (GUVcat_AIS GR6+7)(Bianchi+ 2017)VIII/10 : Bell Laboratories H I Profiles (Stark+ 1992)VIII/28 : Bell Laboratories H I Survey (Stark+ 1992)J/ApJS/79/77 : Bell Lab. H I Survey - High Velocity Clouds (Stark+ 1992)J/ApJ/475/469 : Composite HST Spectrum of Quasars (Zheng+ 1997)J/AJ/120/2747 : HDF-South WFPC2 observations (Casertano+, 2000)J/AJ/122/2810 : Chandra Deep Field North Survey. V. (Brandt+, 2001)J/ApJS/155/271 : Chandra Deep Field-South: Optical spectroscopy (Szokoly+,2004)J/AJ/127/3121 : TKRS catalog of GOODS-North Field (Wirth+, 2004)J/A+A/437/883 : K20 survey: spectroscopic catalogue (Mignoli+, 2005)J/ApJ/653/1004 : Galaxies at 1.4<~z<~3.0 in GOODS-North Field (Reddy+, 2006)J/A+A/454/423 : GOODS-South Field VLT/FORS2 redshifts. II. (Vanzella+, 2006)J/ApJ/663/81 : SED of hard X-ray selected AGN in XMDS (Polletta+, 2007)J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-South field (Balestra+, 2010)J/ApJS/191/124 : Optical spectroscopy of ECDF-S X-ray sources (Silverman+,2010)J/ApJ/734/43 : X-ray, optical & radio monitoring of 3C 111 (Chatterjee+,2011)J/ApJ/731/97 : Variable AGNs in GOODS fields (Sarajedini+, 2011)J/ApJS/195/10 : The CDF-S survey: 4Ms source catalogs (Xue+, 2011)J/A+A/549/A63 : GMASS photometry (Kurk+, 2013)J/A+A/559/A14 : VIMOS VLT Deep Survey final data release (Le Fevre+, 2013)J/ApJS/205/13 : VLA 1.4GHz survey of ECDF-S (DR2) (Miller+, 2013)J/MNRAS/428/3089 : X-ray properties of BzK-selected galaxies (Rangel+, 2013)J/ApJS/214/24 : 3D-HST+CANDELS catalog (Skelton+, 2014)J/ApJ/794/75 : HST-COS UV spectra observations of AGNs (Stevans+, 2014)J/MNRAS/449/4204 : WFC3/UVIS quasar-stacked spectrum at z=~2.4 (Lusso+, 2015)J/AJ/150/31 : Photometry & redshifts of galaxies in the UDF (Rafelski+,2015)J/AJ/150/153 : Team Keck Redshift Survey 2 (TKRS2) (Wirth+, 2015)J/ApJS/225/27 : 3D-HST Survey: grism spectra master catalog (Momcheva+, 2016)J/ApJS/224/15 : Improved 2Ms and 250ks Chandra catalogs (Xue+, 2016)J/MNRAS/465/2120 : Correct. CIV-based virial black hole masses (Coatman+, 2017)J/A+A/606/A12 : MUSE-Wide survey: 831 emission line galaxies (Herenz+, 2017)J/MNRAS/465/302 : Lyman continuum leaking AGN in SSA22 field (Micheva+, 2017)J/A+A/600/A110 : VIMOS Ultra Deep Survey (VUDS) DR1 (Tasca+, 2017)J/A+A/618/A85 : Spectroscopy of 3<z<4 quiescent galaxies (Schreiber+ 2018)J/ApJ/869/123 : Keck Lyman continuum spectroscopic survey (Steidel+, 2018)J/MNRAS/488/1035 : AGN UV luminosity function (Kulkarni+, 2019)J/A+A/624/A141 : MUSE-Wide Survey DR1 catalog (Urrutia+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/897/41https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/897/41http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/897/41https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/897/41https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/897/41http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/897/41GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/897/41/tablea1 (List of galaxies and SED parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/897/41/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/897/41/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/897/41/tablea1?GETtext/xml+votable180.050000true53.00658333-27.724169440.0055555555555555566/11252 35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/897/41?format=asciiInfrareddefaultJ/ApJ/897/41/tablea1List of galaxies and SED parametersSimbadNameSimbad column added by the CDSmeta.idcharnullableDust[1/5]? Dust law (1)meta.noteintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[3/12] Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzspec[2.27/4.29] Spectroscopic redshiftsrc.redshiftfloatJmag[20.9/27.5]? J-band AB magnitudemagphot.mag;em.IR.JfloatnullableMAG1500[-24.7/-18] absolute magnitude at 1500{AA}magphys.magAbsfloatV-I[-0.15/1.06]? V-I color excessmagphot.color;em.opt.V;em.opt.IfloatnullablefAGN[0/97] Percentage of light in the SED from the AGN at 5000{AA}%stat.fit.paramintAV[0/3] Extinctionmagphys.absorptionfloat[Age][5.7/9.4] AGN agelog(yr)time.agefloat[Mass][7.7/11.8] log(M_AGN_/M{sun})log(solMass)phys.massfloatl_SFRLimit flag on SFRmeta.code.error;phys.SFRcharSFR[-8.2/4.1] Star formation ratelog(solMass.yr**-1)phys.SFRfloatz[0.004/0.05] Redshiftsrc.redshiftfloatchi2[0.06/21] chi^2^ valuestat.fit.chi2;stat.valuefloat