J/AJ/162/191ivo://CDS.VizieR/J/AJ/162/191doi:10.26093/cds/vizier.51620191CDSMairs S.Dempsey J.T.Bell G.S.Parsons H.Currie M.J.Friberg P.,Jiang X.-J.Tetarenko A.J.Bintley D.Cookson J.Li S.Rawlings M.G.,Wouterloot J.Berry D.Graves S.Mizuno I.Acohido A.A.Clark A.,Cox J.Fuchs M.Hoge J.Kemp J.Lee E.Matulonis C.Montgomerie W.,Silva K.Smith P.2022-03-14T06:52:03Z2021-12-28T09:42:58ZCDS support team

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

cds-question@unistra.frmillimeter-astronomyphotometrysubmillimeter-astronomyThe Submillimetre Common User Bolometer Array 2 (SCUBA-2) is the James Clerk Maxwell Telescope's continuum imager, operating simultaneously at 450 and 850{mu}m. SCUBA-2 was commissioned in 2009-2011, and since that time, regular observations of point-like standard sources have been performed whenever the instrument is in use. Expanding the calibrator observation sample by an order of magnitude compared to previous work, in this paper we derive updated opacity relations at each wavelength for a new atmospheric extinction correction, analyze the Flux Conversion Factors used to convert instrumental units to physical flux units as a function of date and observation time, present information on the beam profiles for each wavelength, and update secondary calibrator source fluxes. Between 07:00 and 17:00 UTC, the portion of the night that is most stable to temperature gradients that cause dish deformation, the total flux uncertainty and the peak flux uncertainty measured at 450{mu}m are found to be 14% and 17%, respectively. Measured at 850{mu}m, the total flux and peak flux uncertainties are 6% and 7%, respectively. The analysis presented in this work is applicable to all SCUBA-2 projects observed since 2011.2021AJ....162..191Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/162/191CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/401/1240 : Light curves of flat-spectrum radio sources (Jenness+, 2010)J/MNRAS/469/492 : JCMT/SCUBA2 obs. in COSMOS & UDS fields (Michalowski+ 2017)J/ApJ/880/43 : Bright SCUBA-2 submm sources in COSMOS (Simpson+, 2019)J/ApJS/248/24 : MUSTANG-2 Galactic Plane survey at 3mm (Ginsburg+, 2020)http://www.eaobservatory.org/jcmt/instrumentation/continuum/scuba-2/calibration : JCMT SCUBA-2 Calibration home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/162/191https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/162/191http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/162/191https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/162/191https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/162/191http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/162/191GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/162/191/table7 (Secondary calibrator fluxes)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/162/191/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/162/191/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/162/191/table7?GETtext/xml+votable180.050000true315.57612536.69361110.0055555555555555566/1238 8673 13297 235492.3390025583187276e-22 4.414320791325542e-22https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/162/191?format=asciiMillimeterdefaultJ/AJ/162/191/table7Secondary calibrator fluxesN450[34/691] Number of 450um observations (2)meta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the secondary calibratormeta.id;meta.maincharprimaryRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainF450umpk[5/25] SCUBA-2 450um peak flux (1)Jy/beamphot.flux.density;em.mm.400-750GHzfloate_F450umpk[1/5] F450umpk uncertaintyJy/beamstat.errorfloatF850umpk[0.8/5.5] SCUBA-2 850um peak flux (1)Jy/beamphot.flux.density;em.mm.200-400GHzfloate_F850umpk[0.06/0.31] F850umpk uncertaintyJy/beamstat.errorfloatF450um[6/30] SCUBA-2 450um total flux (1)Jyphot.flux.density;em.mm.400-750GHzfloate_F450um[1/5] F450um uncertaintyJystat.errorfloatF850um[0.8/6.1] SCUBA-2 850um total flux (1)Jyphot.flux.density;em.mm.200-400GHzfloate_F850um[0.09/0.3] F850um uncertaintyJystat.errorfloatN850[37/1482] Number of 850um observations (2)meta.numberintNtotNumber of SCUBA-2 observations (link to Table 8)meta.numberintnullableLCInteractive LCs plotmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/162/191/table3Uranus-derived Flux Conversion Factor (FCF) informationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCalibrator identificationmeta.id;meta.maincharMJD[55693.6/59254.6] Modified Julian Date of observation (JD-2400000.5)dtime.epochdoubletau225[0.017/0.32] Atmosphere opacity, {tau}, at 225GHz at MJDphys.absorption.coeff;obs.atmosfloatAirmass[1/3.5] Airmass at MJDobs.airMassfloatF450umpk[-446/4132]? Peak FCF, 450um (1)Jy.pW**-1.beam**-1phot.flux.density;em.mm.400-750GHzfloatnullableF450um[-16/4401]? Arcsec FCF, 450um (2)Jy.pW**-1.arcsec**-2phot.flux.density;em.mm.400-750GHzfloatnullableF850umpk[0.3/2332]? Peak FCF, 850um (1)Jy.pW**-1.beam**-1phot.flux.density;em.mm.200-400GHzfloatnullableF850um[0.1/12]? Arcsec FCF, 850um (2)Jy.pW**-1.arcsec**-2phot.flux.density;em.mm.200-400GHzfloatnullableJ/AJ/162/191/table8Secondary-calibrator flux informationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameCalibrator identificationmeta.id;meta.maincharMJD[55693.6/59254.6] Modified Julian Date of observation (JD-2400000.5)dtime.epochdoubletau225[0.017/0.32] Atmosphere opacity, {tau}, at 225GHz at MJDphys.absorption.coeff;obs.atmosfloatAirmass[1/3.5] Airmass at MJDobs.airMassfloatF450umpk[-446/4132]? Peak FCF, 450um (1)Jy.pW**-1.beam**-1phot.flux.density;em.mm.400-750GHzfloatnullableF450um[-16/4401]? Arcsec FCF, 450um (2)Jy.pW**-1.arcsec**-2phot.flux.density;em.mm.400-750GHzfloatnullableF850umpk[0.3/2332]? Peak FCF, 850um (1)Jy.pW**-1.beam**-1phot.flux.density;em.mm.200-400GHzfloatnullableF850um[0.1/12]? Arcsec FCF, 850um (2)Jy.pW**-1.arcsec**-2phot.flux.density;em.mm.200-400GHzfloatnullable