J/ApJS/240/5ivo://CDS.VizieR/J/ApJS/240/5doi:10.26093/cds/vizier.22400005CDSWold I.G.B.Kawinwanichakij L.Stevans M.L.Finkelstein S.L.,Papovich C.Devarakonda Y.Ciardullo R.Feldmeier J.Florez J.,Gawiser E.Gronwall C.Jogee S.Marshall J.L.Sherman S.Shipley H.V.,Somerville R.S.Valdes F.Zeimann G.R.2025-07-18T20:15:12Z2024-03-22T08:47:59ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryinfrared-photometryvisible-astronomybroad-band-photometryredshiftedsurveysWe present the ugriz-band Dark Energy Camera (DECam) plus 3.6 and 4.5{mu}m IRAC catalogs for the Spitzer/HETDEX Exploratory Large-Area (SHELA) survey. SHELA covers ~24deg^2^ of the Sloan Digital Sky Survey (SDSS) "Stripe 82" region, with seven bandpasses spanning a wavelength range of 0.35 to 4.5{mu}m. SHELA falls within the footprint of the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX), which will provide spectroscopic redshifts for ~200000 Ly{alpha} emitters at 1.9<z<3.5 and also for ~200000 [OII] emitters at z<0.5. SHELA's deep, wide-area multiwavelength images, combined with HETDEX's spectroscopic information, will facilitate many extragalactic studies, including measuring the evolution of galaxy stellar mass, halo mass, and environment from 1.5<z<3.5. Here we present riz-band-selected ugriz-band DECam catalogs that reach a 5{sigma} depth of ~24.5 AB mag (for point sources with an aperture that encloses 70% of the total flux) and cover 17.5deg^2^ of the overall SHELA field. We validate our DECam catalog by comparison to the DECam Legacy Survey (DECaLS) DR5 and the Dark Energy Survey (DES) DR1. We perform IRAC forced photometry with The Tractor image modeling code to measure 3.6 and 4.5{mu}m fluxes for all objects within our DECam catalog. We demonstrate the utility of our catalog by computing galaxy number counts and estimating photometric redshifts. Our photometric redshifts recover the available <z>=0.33 SDSS spectroscopic redshifts with a 1{sigma} scatter in {Delta}z/(1+z) of 0.04.2019ApJS..240....5Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/240/5CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/357 : The Dark Energy Survey (DES): Data Release 1 (Abbott+, 2018)II/371 : The Dark Energy Survey (DES): Data Release 2 (Abbott+, 2021)J/ApJS/162/1 : MUSYC: optical source catalog (Gawiser+, 2006)J/ApJS/206/8 : COSMOS/UltraVISTA Ks-selected catalogs v4.1 (Muzzin+, 2013)J/ApJS/231/7 : The VISTA-CFHT Stripe 82 NIR survey (VICS82) (Geach+, 2017)http://irsa.ipac.caltech.edu/data/SPITZER/SHELA/ : SHELA data access on IRSAhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/240/5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/240/5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/240/5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/240/5https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/240/5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/240/5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/240/5/table6 (Spitzer/HETDEX Exploratory Large-Area (SHELA) Dark Energy Camera (DECam) catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/240/5/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/240/5/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/240/5/table6?GETtext/xml+votable180.050000true14.09763694-0.012083890.0055555555555555565/4415 4458 4499-4502 4505 4544 6/17838 17991 18012-18014 18016-18017 18019 18028-18029 18031-18034 18036 181803.9193497546148093e-20 6.11321178556617e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/240/5?format=asciiOpticalInfrareddefaultJ/ApJS/240/5/table6Spitzer/HETDEX Exploratory Large-Area (SHELA) Dark Energy Camera (DECam) catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintF3.6um[-5e+6/2.1e+6]? Spitzer/IRAC 3.6um Tractor total fluxuJyphot.mag;em.IR.3-4umdoublenullableIDUnique object ID number (B3_ to B6_ tiles plus 000001 to 684409 numbers)meta.id;meta.maincharindexedRAJ2000[14/24.6] Right Ascension (J2000)degpos.eq.ra;meta.mainindexedDEJ2000[-1.4/1.4] Declination (J2000)degpos.eq.dec;meta.mainindexedamaj[0.1/3048] Semimajor axis (1)arcsecphys.angSize;srcfloatell[0/1] Ellipticity (1)src.ellipticityfloatPA[-90/90] Postion angle (1)degpos.posAngfloatrKron[0/877] Sextractor Kron radius, AUTO photometry (1)phys.size.radiusfloatr0.5[0/15905] PSF half-light radius (1)arcsecphys.angSize;srcfloatFuPSF[-4/993] DECam u-band PSF fitting flux (2)uJyphot.flux.density;em.opt.Ufloate_FuPSF[0.001/46] Uncertainty in FuPSF (5)uJystat.errorfloatFu[-132/46824] CTIO/DECam u-band AUTO aperture flux (3)uJyphot.flux.density;em.opt.Udoublee_Fu[0.001/2942] Uncertainty in Fu (5)uJystat.errordoubleuflI[0/153] DECam u-band Sextractor internal flag (4)meta.codeintuflE[0/1] DECam u-band Sextractor external flag (4)meta.codeintFgPSF[-4/34050] DECam g-band PSF fitting flux (2)uJyphot.flux.density;em.opt.Bdoublee_FgPSF[0.001/1570] Uncertainty in FgPSF (5)uJystat.errordoubleFg[-21/521598] CTIO/DECam g-band AUTO aperture flux (3)uJyphot.flux.density;em.opt.Bdoublee_Fg[0.001/24346] Uncertainty in Fg (5)uJystat.errordoublegflI[0/153] DECam g-band Sextractor internal flag (4)meta.codeintgflE[0/1] DECam Sextractor g-band external flag (4)meta.codeintFrPSF[-6/19361] DECam r-band PSF fitting flux (2)uJyphot.flux.density;em.opt.Rdoublee_FrPSF[0.001/892] Uncertainty in FrPSF (5)uJystat.errorfloatFr[-54/366386] CTIO/DECam r-band AUTO aperture flux (3)uJyphot.flux.density;em.opt.Rdoublee_Fr[0.001/29114] Uncertainty in Fr (5)uJystat.errordoublerflI[0/157] DECam r-band Sextractor internal flag (4)meta.codeintrflE[0/1] DECam r-band Sextractor external flag (4)meta.codeintFiPSF[-7/16418] DECam i-band PSF fitting flux (2)uJyphot.flux.density;em.opt.Idoublee_FiPSF[0.001/758] Uncertainty in FiPSF (5)uJystat.errorfloatFi[-1135/743848] CTIO/DECam i-band AUTO aperture flux (3)uJyphot.flux.density;em.opt.Idoublee_Fi[0.001/220928] Uncertainty in Fi (5)uJystat.errordoubleiflI[0/157] DECam i-band Sextractor internal flag (4)meta.codeintiflE[0/1] DECam i-band Sextractor external flag (4)meta.codeintFzPSF[-5/47832] DECam z-band PSF fitting flux (2)uJyphot.flux.density;em.opt.Idoublee_F3.6um[0.01/5e+12]? Uncertainty in F3.6umuJystat.errordoublenullableMod3.6[0/4]? IRAC Tractor model profile, 3.6um (7)meta.codeintnullablelogP3.6[-7e+10/0] IRAC Tractor log-probability, 3.6umstat.fit.goodnessdoublee_FzPSF[0.001/2216] Uncertainty in FzPSF (5)uJystat.errordoubleFz[-322/568888] CTIO/DECam z-band AUTO aperture flux (3)uJyphot.flux.density;em.opt.Idoublee_Fz[0.001/161580] Uncertainty in Fz (5)uJystat.errordoublezflI[0/157] DECam z-band Sextractor internal flag (4)meta.codeintzflE[0/1] DECam z-band Sextractor external flag (4)meta.codeintVICS82JK object ID number (JHHMMSS.ss+DDMMSS.s), Geach+ (2017, J/ApJS/231/7)meta.id.crosscharFJ[0.01/948492]? J band AUTO aperture flux (6)uJyphot.flux.density;em.IR.Jdoublenullablee_FJ[0/4153]? Uncertainty in FJ (6)uJystat.errorfloatnullableFK[0/921168]? K band AUTO aperture flux (6)uJyphot.mag;em.IR.Kdoublenullablee_FK[0/37964]? Uncertainty in FK (6)uJystat.errordoublenullableTfl3.6[0/2] Tractor flag, 3.6um observation (8)meta.codeintF4.5um[-1e+6/1.3e+6]? Spitzer/IRAC 4.5um Tractor total fluxuJyphot.mag;em.IR.4-8umdoublenullablee_F4.5um[0.01/3e+12]? Uncertainty in F4.5umuJystat.errordoublenullableMod4.5[0/4]? IRAC Tractor model profile, 4.5um (7)meta.codeintnullablelogP4.5[-3e+10/0] IRAC Tractor log-probability, 4.5umstat.fit.goodnessdoubleTfl4.5[0/2] Tractor flag, 4.5um observation (8)meta.codeintzspec[0/1.7]? SDSS spectroscopic redshiftsrc.redshiftfloatnullableSloanDisplay the online SDSS-DR17 data for the nearest object if zspec is filledmeta.ref.urlcharzpeak[0.01/10.5]? EAZY peak photometric redshiftsrc.redshift.photfloatnullableza[0.01/11]? EAZY {chi}^2^ minimum photometric redshiftsrc.redshift.photfloatnullablechi2a[0/2664]? EAZY {chi}^2^ minimum valuestat.fit.chi2floatnullableNfilt[5/9]? EAZY number of filtersmeta.numberintnullableDESDisplay data from DES DR2 (II/371) within 0.5"meta.ref.urlchar