J/ApJ/723/1110ivo://CDS.VizieR/J/ApJ/723/1110doi:10.26093/cds/vizier.17231110CDSHuynh M.T.Gawiser E.Marchesini D.Brammer G.Guaita L.2017-10-09T13:33:44Z2012-08-14T08:45:32ZCDS support team

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

cds-question@unistra.frinfrared-photometrygalaxiesinfrared-sourcesradio-sourcesWe present MIPS 24um observations of the Hubble Deep Field South taken with the Spitzer Space Telescope. The resulting image is 254arcmin^2^ in size and has a sensitivity ranging between ~12 and ~30uJy rms, with a median sensitivity of ~20uJy rms. A total of 495 sources have been catalogued with a signal-to-noise ratio greater than 5{sigma}. The source catalog is presented as well as source counts which have been corrected for completeness and flux boosting. The IR sources are then combined with MUSYC optical/NIR and ATHDFS radio observations to obtain redshifts and radio flux densities of the sample. We use the IR/radio flux density ratio (q_24_) to explore the IR-radio correlation for this IR sample and find q_24_=0.71+/-0.31 for sources detected in both IR and radio. The results are extended by stacking IR sources not detected in the radio observations and we derive an average q_24_ for redshift bins between 0<z<2.5. We find that the high-redshift (z>1) sources have an average q_24_ ratio which is better fit by local LIRG SEDs rather than local ULIRG SEDs, indicating that high-redshift ULIRGs differ in their IR/radio properties. So, ULIRGs at high-redshift have SEDs different from those found locally. Infrared-faint radio sources are examined, and while nine radio sources do not have an MIPS detection and are therefore radio-loud active galactic nuclei (AGNs), only one radio source has an extreme IRAC 3.6um to radio flux density ratio indicating it is a radio-loud AGN at z>1.2010ApJ...723.1110Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/723/1110CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/189/270 : MUSYC optical imaging in ECDF-S (Cardamone+, 2010)J/AJ/135/2470 : Radio observations of the HDFS region. IV. (Huynh+, 2008)J/AJ/133/1331 : Observation of HDFS at 2.5, 5.2, and 8.7GHz (Huynh+, 2007)J/ApJ/655/51 : HDFS IRAC observations of 2<z<3.5 galaxies (Wuyts+, 2007)J/AJ/134/1103 : MUSYC deep near-infrared imaging (Quadri+, 2007)J/AJ/132/2409 : Deep ATLAS radio observations of CDFS (Norris+, 2006)J/A+A/452/119 : EIS: infrared observations of CDF-S and HDF-S (Olsen+, 2006)J/ApJS/162/1 : MUSYC: optical source catalog (Gawiser+, 2006)J/AJ/130/1373 : Radio observations of the HDFS region. II (Huynh+, 2005)J/A+A/440/61 : FORS spectroscopy of HDFS galaxies (Rigopoulou+, 2005)J/AJ/125/1107 : Ultra-deep near-IR observation in HDF-S (Labbe+, 2003)J/A+A/375/1 : IR observations of CDF + HDF-South (Saracco+, 2001)J/A+AS/145/111 : HDF-South catalogue of galaxies (Volonteri+, 2000)J/ApJ/538/493 : HDF-South NICMOS field (Yahata+, 2000)J/AJ/120/2206 : NTT, HDF-S and HDF-N photometric redshifts (Fontana+, 2000)J/AJ/120/2747 : HDF-South WFPC2 observations (Casertano+, 2000)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/723/1110https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/723/1110http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/723/1110https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/723/1110https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/723/1110http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/723/1110GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/723/1110/table1 (The MIPS 24{mu}m catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/723/1110/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/723/1110/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/723/1110/table1?GETtext/xml+votable180.050000true337.75243111-60.567478060.005555555555555556Cone search capability for table J/ApJ/723/1110/table4 (Summary of radio Sources that have no MIPS 24um counterpart and hence are candidate infrared-faint radio sources)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/723/1110/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/723/1110/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/723/1110/table4?GETtext/xml+votable180.050000true338.102083-60.6869440.0055555555555555566/45523 455269.276497240453405e-25 6.185923063528282e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/723/1110?format=asciiInfraredRadiodefaultJ/ApJ/723/1110/table1The MIPS 24{mu}m catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identification (JHHMMSS.s+DDMMSS)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainS24umSpitzer/MIPS 24 micron flux densityuJyphot.flux.density;em.IR.15-30umdoublee_S24umUncertainty in S24um (formal error from APEX)uJystat.errorfloatS/NSignal-to-noise ratio of the sourcestat.snrfloatMUSYCCross-match(es) with MUSYC catalogs within 2"meta.ref.urlintnullableJ/ApJ/723/1110/table4Summary of radio Sources that have no MIPS 24um counterpart and hence are candidate infrared-faint radio sourcesl_R/IRLimit flag on R/IRmeta.code.errorcharl_q24Limit flag on q24meta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintATHDFSRadio identification (JHHMMSS.s+DDMMSS) (1)meta.id;meta.maincharS24umSpitzer/MIPS 24um flux, 5{sigma} limituJyphot.flux.density;em.IR.15-30umintS1.4ATCA 1.4GHz flux densitymJyphot.flux.density;em.radio.750-1500MHzfloatl_S3.6Limit flag on S3.6meta.code.errorcharS3.6? Spitzer/IRAC 3.6um flux density (from Marchesini et al., 2009ApJ...701.1765M)uJyphot.mag;em.IR.3-4umfloatnullablef_S3.6[cd] not observed with IRAC (2)meta.codecharq24IR/radio flux density ratio (q_24_=log(S24um/S1.4GHz))phot.flux;arith.ratiofloatR/IR? Radio-to-IRAC flux density ratio (S1.4GHz/S3.6um)phot.flux;arith.ratiofloatnullablezph? Photometric redshiftsrc.redshiftfloatnullablef_zph[b] undetected in optical (2)meta.codecharalpha? Radio spectral index (2.5GHz-1.4GHz) from Huynh et al. (2007, Cat. J/AJ/133/1331) and S{propto}{nu}^{alpha}^spect.indexfloatnullablee_alpha? alpha uncertaintystat.error;pos.eq.rafloatnullableSimbadSimbad column added by the CDSmeta.refchar_RAPositions from ATHDFS name (right ascension part)degpos.eq.ra;meta.main_DEPositions from ATHDFS name (declination part)degpos.eq.dec;meta.main