J/MNRAS/442/577ivo://CDS.VizieR/J/MNRAS/442/577doi:10.26093/cds/vizier.74420577CDSThomson A.P.Ivison R.J.Simpson J.M.Swinbank A.M.Smail I.,Arumugam V.Alexander D.M.Beelen A.Brandt W.N.Chandra I.,Dannerbauer H.Greve T.R.Hodge J.A.Ibar E.Karim A.Murphy E.J.,Schinnerer E.Sirothia S.Walter F.Wardlow J.L.van der Werf P.2024-08-09T20:15:38Z2015-06-05T14:24:15ZCDS support team

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

cds-question@unistra.frgalaxiescatalogsmillimeter-astronomysubmillimeter-astronomyradio-sourcesWe present a study of the radio properties of 870 {mu}m-selected submillimetre galaxies (SMGs), observed at high resolution with Atacama Large Millimeter Array (ALMA) in the Extended Chandra Deep Field South. From our initial sample of 76 ALMA SMGs, we detect 52 SMGs at >3{sigma} significance in Karl G. Jansky Very Large Array 1400MHz imaging, of which 35 are also detected at >3{sigma} in new 610MHz Giant Metre-Wave Radio Telescope imaging. Within this sample of radio-detected SMGs, we measure a median radio spectral index {alpha}_{610}_^{1400}^=-0.79+/-0.06, (with inter-quartile range {alpha}=[-1.16,-0.56]) and investigate the far-infrared/radio correlation via the parameter q_IR_, the logarithmic ratio of the rest-frame 8-1000{mu}m flux and monochromatic radio flux. Our median q_IR_=2.56+/-0.05 (inter-quartile range q_IR_=[2.42,2.78]) is higher than that typically seen in single-dish 870{mu}m-selected sources (q_IR_~2.4), which may reflect the fact that our ALMA-based study is not biased to radio-bright counterparts, as previous samples were. Finally, we search for evidence that q_IR_ and {alpha} evolve with age in a codependent manner, as predicted by starburst models: the data populate the predicted region of parameter space, with the stellar mass tending to increase along tracks of q_IR_ versus {alpha} in the direction expected, providing the first observational evidence in support of these models.2014MNRAS.442..577Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/442/577CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/707/1201 : LABOCA ECDFS Submillimeter Survey (LESS) (Weiss+, 2009)J/MNRAS/413/2314 : Submm galaxies radio and mid-IR counterpart (Biggs+, 2011)J/ApJS/205/13 : VLA 1.4GHz survey of ECDF-S (DR2) (Miller+, 2013)J/ApJ/768/91 : ALMA observations of LESS submm galaxies (Hodge+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/442/577https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/442/577http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/442/577https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/442/577https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/442/577http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/442/577GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/442/577/table3 (The radio properties of selected ALESS SMGs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/442/577/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/442/577/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/442/577/table3?GETtext/xml+votable180.050000true53.3103-27.93740.0055555555555555566/35935 359574.0419025326745717e-25 2.283270615984385e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/442/577?format=asciiRadiodefaultJ/MNRAS/442/577/table3The radio properties of selected ALESS SMGsRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintALESSALESS ID (NNN.NN)meta.id;meta.maincharDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzph[0.4/6.6] Photometric redshift from Simpson et al. (2014ApJ...788..125S)src.redshiftfloatb_zphLower value of zph confidence intervalstat.fit.paramfloatB_zphUpper value of zph confidence intervalstat.fit.paramfloatS870[1.3/9] ALMA flux density at 870um from Swinbank et al. (2014MNRAS.438.1267S)mJyphot.flux.density;em.mm.200-400GHzfloate_S870[0.3/0.9] rms uncertainty on S870mJystat.errorfloatl_S1.4G[<] Limit flag on S1.4 (1)meta.code.errorcharS1.4G[23/273] VLA flux density at 1.4GHzuJyphot.flux.density;em.radio.750-1500MHzinte_S1.4G[6/11] rms uncertainty on S1.4GuJystat.errorintl_S610M[<] Limit flag on S610M (1)meta.code.errorcharS610M[41/533] GMRT flux density at 610MHzuJyphot.flux.density;em.radio.400-750MHzinte_S610M[13/50] rms uncertainty on S610MuJystat.errorintSIR[0.03/1.13] Rest-frame 8-1000{mu}m infrared flux (S_IR_=L_IR_/4{pi}R^2^)fW.m**-2phot.flux;em.IRfloate_SIR[0/1.71] rms uncertainty on SIRfW.m**-2stat.errorfloatl_alpha[>] Limit flag on alphameta.code.error;pos.eq.racharalpha[-1.8/0.6]? Spectral index {alpha} between 610MHz and 1.4GHzspect.index;em.radio.400-750MHzfloatnullablee_alpha[0.03/0.34]? rms uncertainty on alphastat.error;pos.eq.rafloatnullablel_qIR[<] Limit flag on qIRmeta.code.errorcharqIR[0.28/3.33] Infrared/radio flux ratio (2)phot.flux;arith.ratiofloate_qIR[0.01/0.94]? rms uncertainty on qIRstat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar