J/MNRAS/468/250ivo://CDS.VizieR/J/MNRAS/468/250doi:10.26093/cds/vizier.74680250CDSNettke W.Scott D.Gibb A.G.Thompson M.Chrysostomou A.Evans A.,Hill T.Jenness T.Joncas G.Moore T.Serjeant S.Urquhart J.,Vaccari M.Weferling B.White G.Zhu M.2024-08-17T20:18:35Z2020-04-21T14:51:56ZCDS support team

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

cds-question@unistra.frsurveysmillimeter-astronomysubmillimeter-astronomymilky-way-galaxyThe SCUBA-2 Ambitious Sky Survey (SASSy) is composed of shallow 850-{mu}m imaging using the Submillimetre Common-User Bolometer Array 2 (SCUBA-2) on the James Clerk Maxwell Telescope. Here we describe the extraction of a catalogue of beam-sized sources from a roughly 120deg^2^ region of the Galactic plane mapped uniformly (to an rms level of about 40mJy), covering longitude 120{deg}<l<140{deg} and latitude |b|<2.9{deg}. We used a matched-filtering approach to increase the signal-to-noise ratio (S/N) in these noisy maps and tested the efficiency of our extraction procedure through estimates of the false discovery rate, as well as by adding artificial sources to the real images. The primary catalogue contains a total of 189 sources at 850{mu}m, down to an S/N threshold of approximately 4.6. Additionally, we list 136 sources detected down to S/N=4.3, but recognize that as we go lower in S/N, the reliability of the catalogue rapidly diminishes. We perform follow-up observations of some of our lower significance sources through small targeted SCUBA-2 images and list 265 sources detected in these maps down to S/N=5. This illustrates the real power of SASSy: inspecting the shallow maps for regions of 850-{mu}m emission and then using deeper targeted images to efficiently find fainter sources. We also perform a comparison of the SASSy sources with the Planck Catalogue of Compact Sources and the IRAS Point Source Catalogue, to determine which sources discovered in this field might be new, and hence potentially cold regions at an early stage of star formation.2017MNRAS.468..250Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/468/250CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/458/4321 : SCUBA-2 galaxies in 850um survey (Koprowski+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/468/250https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/468/250http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/468/250https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/468/250https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/468/250http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/468/250GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/468/250/primary (The Primary catalogue (Table 2))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/250/primary?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/250/primary?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/250/primary?GETtext/xml+votable180.050000true36.76708361.8730560.005555555555555556Cone search capability for table J/MNRAS/468/250/suppl (The Supplementary catalogue (Table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/250/suppl?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/250/suppl?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/250/suppl?GETtext/xml+votable180.050000true36.07833362.0711110.005555555555555556Cone search capability for table J/MNRAS/468/250/daisy (The DAISY Catalogue (Table 5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/468/250/daisy?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/468/250/daisy?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/468/250/daisy?GETtext/xml+votable180.050000true36.76708361.8730560.0055555555555555565/759 818 824-826 903 910 912 914 928 936 6/3030-3031 3033-3034 3044 3047 3058 3060-3061 3068-3069 3253-3255 3259 3261-3263 3266-3267 3270-3271 3278-3279 3290 3308-3310 3312 3599-3601 3603-3604 3606 3609 3621 3625 3627-3628 3630-3631 3633 3635-3637 3639 3645-3646 3654 3682 3688 3716-3718 3720-3721 3724-3725 3728-3730 3732 3736https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/468/250?format=asciiMillimeterdefaultJ/MNRAS/468/250/primaryThe Primary catalogue (Table 2)S450Source Flux at 450-micron bandmJyphot.flux.density;em.mm.400-750GHzintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name, JCMTLSYP LLL.llll+B.bbbbmeta.idcharID[1/325] Source IDmeta.idintGLONGalactic Longitudedegpos.galactic.lonGLATGalactic Latitudedegpos.galactic.latfloatRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainS/NSignal-to-Noise readingstat.snrfloatS850Source Flux at 850-micron bandmJyphot.flux.density;em.mm.200-400GHzintl_S450Lower limit flag on S450meta.code.errorcharFlagFlag indicating if the source has some defining characteristic we want to mark as relevant to this work (1)meta.code.errorcharJ/MNRAS/468/250/supplThe Supplementary catalogue (Table 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name, JCMTLSYP LLL.llll+B.bbbbmeta.idcharID[1/325] Source IDmeta.idintGLONGalactic Longitudedegpos.galactic.lonGLATGalactic Latitudedegpos.galactic.latfloatRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainS/NSignal-to-Noise readingstat.snrfloatS850Source Flux at 850-micron bandmJyphot.flux.density;em.mm.200-400GHzintl_S450Lower limit flag on S450meta.code.errorcharS450Source Flux at 450-micron bandmJyphot.flux.density;em.mm.400-750GHzintFlagFlag indicating if the source has some defining characteristic we want to mark as relevant to this work (1)meta.code.errorcharJ/MNRAS/468/250/daisyThe DAISY Catalogue (Table 5)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource Name, JCMTLSYP LLL.llll+B.bbbbmeta.idcharIDSource ID (1D-265D)meta.idcharGLONGalactic Longitudedegpos.galactic.lonGLATGalactic Latitudedegpos.galactic.latfloatRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainS/NSignal-to-Noise readingstat.snrfloatS850Source Flux at 850-micron bandmJyphot.flux.density;em.mm.200-400GHzdoubleFlag[E] Flag indicating if the source has some defining characteristic we want to mark as relevant to this work (1)meta.code.errorchar