J/MNRAS/423/529ivo://CDS.VizieR/J/MNRAS/423/529doi:10.26093/cds/vizier.74230529CDSDownes T.P.Welch D.Scott K.S.Austermann J.Wilson G.W.Yun M.S.2024-07-18T20:18:30Z2013-05-02T15:58:44ZCDS support team

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

cds-question@unistra.frsurveysradio-galaxiesmillimeter-astronomysubmillimeter-astronomyInstruments using arrays of many bolometers have become increasingly common in the past decade. The maps produced by such instruments typically include the filtering effects of the instrument as well as those from subsequent steps performed in the reduction of the data. Therefore interpretation of the maps is dependent upon accurately calculating the transfer function of the chosen reduction technique on the signal of interest. Many of these instruments use non-linear and iterative techniques to reduce their data because such methods can offer an improved signal-to-noise ratio over those that are purely linear, particularly for signals at scales comparable to that subtended by the array. We discuss a general approach for measuring the transfer function of principal component analysis on point sources that are small compared to the spatial extent seen by any single bolometer within the array. The results are applied to previously released AzTEC catalogues of the Cosmic Evolution Survey (COSMOS), Lockman Hole, Subaru XMM-Newton Deep Field, Great Observatories Origins Deep Survey (GOODS)-North and GOODS-South fields. Source flux density and noise estimates increase by roughly +10 per cent for fields observed while AzTEC was installed at the Atacama Submillimeter Telescope Experiment and +15-25 per cent while AzTEC was installed at the James Clerk Maxwell Telescope. Detection significance is, on average, unaffected by the revised technique. The revised photometry technique will be used in subsequent AzTEC releases.2012MNRAS.423..529Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/423/529CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/385/2225 : AzTEC millimetre survey of COSMOS field (Scott+, 2008)J/MNRAS/401/160 : AzTEC survey of the SHADES fields. I. (Austermann+, 2010)J/MNRAS/405/2260 : GOODS-S field AzTEC/ASTE Deep 1.1mm imaging (Scott+, 2010)J/MNRAS/411/102 : AzTEC/ASTE 1.1mm observations in the ADF-S (Hatsukade+ 2011)J/MNRAS/415/3831 : AzTEC/ASTE source catalogue (Aretxaga+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/423/529https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/423/529http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/423/529https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/423/529https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/423/529http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/423/529GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/423/529/psc (Merged AzTEC point-sources in the 5 regions studied)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/423/529/psc?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/423/529/psc?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/423/529/psc?GETtext/xml+votable180.050000true149.92783332.49336110.0055555555555555566/6047 6069 6112 11230 11249 11252 17690 27258-27259 359351.8058623843283312e-22 1.8058623843283312e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/423/529?format=asciiRadiodefaultJ/MNRAS/423/529/pscMerged AzTEC point-sources in the 5 regions studiedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintAzTECAzTEC name (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharNameOther name (4)meta.idcharn_Name[abc] Source not in both versions (1)meta.notecharS/NSignal-to-noise ratio of the detectionstat.snrfloatS1.1Measured flux density at 1.1mmmJyphot.flux.density;em.mm.200-400GHzfloate_S1.1rms uncertainty on S1.1mJystat.errorfloatS1.1c? Corrected flux density at 1.1mm (2)mJyphot.flux.density;em.mm.200-400GHzfloatnullableE_S1.1c? Error on S1.1c (upper value, 68%) (2)mJystat.error;stat.maxfloatnullablee_S1.1c? Error on S1.1c (lower value, 68%) (2)mJystat.errorfloatnullablePneg? Probability that the source will deboost to S<0 assuming the number counts prior based on all AzTEC measurements, P(<0)stat.fit.goodnessfloatnullabledFlux? Relative increase in Flux (3)%obs.param;arith.difffloatnullabledNoise? Relative increase in noise (3)%obs.param;arith.difffloatnullabletheta? Change in location of the source centroid position if it was detected in both cataloguesarcsecpos;arith.difffloatnullable_RAPosition from AzTEC name (right ascension part)degpos.eq.ra;meta.main_DEPosition from AzTEC name (declination part)degpos.eq.dec;meta.main