J/ApJS/215/9ivo://CDS.VizieR/J/ApJS/215/9doi:10.26093/cds/vizier.22150009CDSWilliams B.F.Lang D.Dalcanton J.J.Dolphin A.E.Weisz D.R.,Bell E.F.Bianchi L.Byler N.Gilbert K.M.Girardi L.Gordon K.,Gregersen D.Johnson L.C.Kalirai J.Lauer T.R.Monachesi A.,Rosenfield P.Seth A.Skillman E.2023-12-20T08:41:20Z2015-02-06T08:57:33ZCDS support team

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

cds-question@unistra.frgalaxieshst-photometrysurveysultraviolet-astronomyinfrared-sourcesWe have measured stellar photometry with the Hubble Space Telescope Wide Field Camera 3 (WFC3) and Advanced Camera for Surveys in near ultraviolet (F275W, F336W), optical (F475W, F814W), and near infrared (F110W, F160W) bands for 117 million resolved stars in M31. As part of the Panchromatic Hubble Andromeda Treasury survey, we measured photometry with simultaneous point-spread function (PSF) fitting across all bands and at all source positions after precise astrometric image alignment (<5-10mas accuracy). In the outer disk, the photometry reaches a completeness-limited depth of F475W~28, while in the crowded, high surface brightness bulge, the photometry reaches F475W~25. We find that simultaneous photometry and optimized measurement parameters significantly increase the detection limit of the lowest-resolution filters (WFC3/IR) providing color-magnitude diagrams (CMDs) that are up to 2.5mag deeper when compared with CMDs from WFC3/IR photometry alone. We present extensive analysis of the data quality including comparisons of luminosity functions and repeat measurements, and we use artificial star tests to quantify photometric completeness, uncertainties and biases. We find that the largest sources of systematic error in the photometry are due to spatial variations in the PSF models and charge transfer efficiency corrections.2014ApJS..215....9Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/215/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)II/208 : BVRI CCD photometry in the field of M 31 (Magnier+ 1992)VI/39 : Model Atmospheres (Kurucz, 1979)J/AJ/146/135 : Physical parameters of 29 M31 globular clusters (Agar+, 2013)J/AJ/146/20 : Structural param. for 79 GCs in M31 (Wang+, 2013)J/ApJ/765/71 : VI light curves of RRL stars in M31 (Contreras Ramos+, 2013)J/ApJ/752/95 : PHAT stellar cluster survey. I. Year 1 (Johnson+, 2012)J/ApJ/745/156 : M31 Cepheids with HST/WFC3 (Riess+, 2012)J/A+A/544/A155 : HST photometry of M31 globular clusters (Federici+, 2012)J/AJ/144/142 : HST phot. of young stellar populations in M31 (Bianchi+, 2012)J/PASP/122/745 : HST WFPC2 star clusters in M31. III. (Hodge+, 2010)J/ApJ/708/817 : RR Lyrae variables in M32 and M31 (Fiorentino+, 2010)J/ApJS/184/152 : Deep optical photometry in M31 (Brown+, 2009)J/A+A/507/1375 : HST/ACS VI data of M31 globular clusters (Perina+, 2009)J/AJ/138/1667 : HST survey of young clusters in M31. III. (Barmby+, 2009)J/AJ/138/770 : HST/WFPC survey of M31 bright young clusters (Hodge+, 2009)J/PASP/120/1 : HST WFPC2 star clusters in M31. II. (Krienke+, 2008)J/AJ/131/2478 : M31 and M33 UBVRI photometry (Massey+, 2006)J/AJ/129/2663 : B photometry of M31 variable star candidates (Williams+, 2005)J/ApJ/559/851 : Young star cluster candidates in M31 (Williams+, 2001)J/AJ/122/2458 : M31 globular clusters from HST (Barmby+, 2001)J/AJ/119/727 : M31 globular clusters photometry (Barmby+, 2000)J/ApJ/504/113 : F175W and F275W photometry of M31 and M32 (Brown+, 1998)J/AJ/114/1488 : Globulars in M31 (Holland+ 1997)http://archive.stsci.edu/missions/hlsp/phat/ : PHAT photometry archivehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/215/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/215/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/215/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/215/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/215/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/215/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/215/9/table5 (The photometry catalog (among 116,861,756 stars))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/215/9/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/215/9/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/215/9/table5?GETtext/xml+votable180.050000true10.982881121741.10948753250.005555555555555556Cone search capability for table J/ApJS/215/9/table1 (Observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/215/9/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/215/9/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/215/9/table1?GETtext/xml+votable180.050000true10.8486416741.254988890.005555555555555556Cone search capability for table J/ApJS/215/9/table6 (The Artificial Star Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/215/9/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/215/9/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/215/9/table6?GETtext/xml+votable180.050000true11.5273376442.133721350.0055555555555555566/2623 2666 2709 27521.1796835550914393e-19 7.886974166154988e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/215/9?format=asciiUVInfrareddefaultJ/ApJS/215/9/table5The photometry catalog (among 116,861,756 stars)RAJ2000Right Ascension in decimal degrees (J2000) (1)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000) (1)degpos.eq.dec;meta.mainindexedF275W? HST/WFC3 F275W band VEGA magnitudemagphot.mag;em.UV.200-300nmfloatnullables_F275W[-99/] Signal-to-Noise in HST/WFC3 F275W bandstat.snrfloatq_F275W[TF] F275W band good star reliability GST flag (2)meta.code.qualcharF336W? HST/WFC3 F336W band VEGA magnitudemagphot.mag;em.opt.Ufloatnullables_F336W[-99/] Signal-to-Noise in HST/WFC3 F336W bandstat.snrfloatq_F336W[TF] F336W band good star reliability GST flag (2)meta.code.qualcharF475W? HST/ACS F475W band VEGA magnitudemagphot.mag;em.opt.BfloatnullableF814W? HST/ACS F814W band VEGA magnitudemagphot.mag;em.opt.IfloatnullableF110W? HST/WFC3 F110W band VEGA magnitudemagphot.mag;em.IR.JfloatnullableF160W? HST/WFC3 F160W band VEGA magnitudemagphot.mag;em.IR.Hfloatnullables_F475W[-99/] Signal-to-Noise in HST/ACS F475W bandstat.snrfloatq_F475W[TF] F475W band good star reliability GST flag (2)meta.code.qualchars_F814W[-99/] Signal-to-Noise in HST/ACS F814W bandstat.snrfloatq_F814W[TF] F814W band good star reliability GST flag (2)meta.code.qualchars_F110W[-99/] Signal-to-Noise in HST/WFC3 F110W bandstat.snrfloatq_F110W[TF] F110W band good star reliability GST flag (2)meta.code.qualchars_F160W[-99/] Signal-to-Noise in HST/WFC3 F160W bandstat.snrfloatq_F160W[TF] F160W band good star reliability GST flag (2)meta.code.qualcharJ/ApJS/215/9/table1ObservationsNameTarget namemeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000[0] Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000[41/42] Degree of Declination (J2000)pos.eq.dec;meta.mainObsUT date of the observation start timestime.start;obsnullableExp[10/1900]? Exposure timestime.duration;obs.exposurefloatnullableInstInstrument used (ACS or FWC3)instr.setupcharAperAperture used in Inst ("WFC" or "WFCENTER" for ACS, "IR-FIX" or UVIS-CENTER" for WFC3)phys.angSize;instr.fovcharFilterFilter used in Instinstr.setup;instr.filtercharPA-V3[0/360] Position angledegpos.posAngfloatJ/ApJS/215/9/table6The Artificial Star CatalogF475W-out? Output HST/ACS F475W band magnitudemagphot.mag;em.opt.BfloatnullableF814W-inInput HST/ACS F814W band magnitudemagphot.mag;em.opt.IfloatF814W-out? Output HST/ACS F814W band magnitudemagphot.mag;em.opt.IfloatnullableF110W-in? Input HST/WFC3 F110W band magnitudemagphot.mag;em.IR.JfloatnullableF110W-out? Output HST/WFC3 F110W band magnitudemagphot.mag;em.IR.JfloatnullableF160W-in[13.5/27.3]? Input HST/WFC3 F160W band magnitudemagphot.mag;em.IR.HfloatnullableF160W-out[13.5/25.7]? Output HST/WFC3 F160W band magnitudemagphot.mag;em.IR.HfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainindexedDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainindexedF275W-in[14.1/36.9] Input HST/WFC3 F275W band magnitudemagphot.mag;em.UV.200-300nmfloatF275W-out[14.1/25.4]? Output HST/WFC3 F275W band magnitudemagphot.mag;em.UV.200-300nmfloatnullableF336W-in[14.4/34.8] Input HST/WFC3 F336W band magnitudemagphot.mag;em.opt.UfloatF336W-out? Output HST/WFC3 F336W band magnitudemagphot.mag;em.opt.UfloatnullableF475W-inInput HST/ACS F475W band magnitudemagphot.mag;em.opt.BfloatJ/ApJS/215/9/table7RMS, Bias, and DOLPHOT-reported uncertainties from our artificial star tests as a function of stellar density, filter, and magnituderecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDensity[0.04/7.6] Stellar density (1)arcsec**-2src.densityfloatFilterFilter (F110W, F160W, F275W, F336W, F475W or F814W)meta.id;instr.filtercharmag[14/27] Magnitude in Filtermagphot.magfloatBias[-1/0.2] Median magnitude bias (2)magsrc.sample;stat.medianfloatRMS[0.004/1.2] RMS uncertainty from artificial star testsmagstat.error;phot.magfloatDOLPHOT[0.001/0.2] DOLPHOT reported uncertaintymagstat.error;phot.magfloatRatio[1/133] Ratio of RMS to DOLPHOT uncertaintiesstat.fit.omcfloat