J/MNRAS/459/1403ivo://CDS.VizieR/J/MNRAS/459/1403doi:10.26093/cds/vizier.74591403CDSRafiei Ravandi M.Barmby P.Ashby M.L.N.Laine S.Davidge T.J.,Zhang J.Bianchi L.Babul A.Chapman S.C.2024-08-16T20:16:43Z2017-08-28T14:51:28ZCDS support team

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

cds-question@unistra.frgalaxiessurveysmillimeter-astronomyphotometrysubmillimeter-astronomyWe present the first results from an extended survey of the Andromeda galaxy (M31) using 41.1h of observations by Spitzer-IRAC at 3.6 and 4.5{mu}m. This survey extends previous observations to the outer disc and halo, covering total lengths of 44 and 66 along the minor and major axes, respectively. We have produced surface brightness profiles by combining the integrated light from background-corrected maps with stellar counts from a new catalogue of point sources. Using auxiliary catalogues, we have carried out a statistical analysis in colour-magnitude space to discriminate M31 objects from foreground Milky Way stars and background galaxies. The catalogue includes 426 529 sources, of which 66 per cent have been assigned probability values to identify M31 objects with magnitude depths of [3.6]=19.0+/-0.2, [4.5]=18.7+/-0.2. We discuss applications of our data for constraining the stellar mass and characterizing point sources in the outer radii.2016MNRAS.459.1403Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/459/1403CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/459/1403https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/459/1403http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/459/1403https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/459/1403https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/459/1403http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/459/1403GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/459/1403/catalog (Catalog of Spitzer IRAC observations of the extended disk and halo of M31)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/459/1403/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/459/1403/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/459/1403/catalog?GETtext/xml+votable180.050000true10.0922811140.277761110.0055555555555555565/667 677 6/2615 2619 2621-2623 2658 2664 2666-2667 2693 2704-2705 2716-2717 27523.967981999290759e-20 6.242277914639173e-20https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/459/1403?format=asciiRadiodefaultJ/MNRAS/459/1403/table5IRAC 3.6um M31 surface brightness profilerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDGDeprojected galactocentric distancearcminphys.angSize;pos.galactocentricdoubleSuBrSpitzer/IRAC 3.6um surface brightness (Vega mag/arcsec^2^)mag.arcsec**-2phot.mag.sb;em.IR.3-4umdoublee_SuBr? rms uncertainty in surface brightness (Vega mag/arcsec^2^)mag.arcsec**-2stat.errordoublenullableJ/MNRAS/459/1403/catalogCatalog of Spitzer IRAC observations of the extended disk and halo of M31recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDM31IRAC name (JHHMMSS.ss+DDMMSS.s) (ID)meta.id;meta.maincharSeqRunning object number (OBJECT_ID) (Seq)meta.idintRKronKron apertures in units of A or B (KRON_RADIUS)phys.angSize;srcfloatAimageProfile rms along major axis (A_IMAGE)pixstat.stdevfloatXimageObject position along x (X_IMAGE)pixpos;instr.detdoubleYimageObject position along y (Y_IMAGE)pixpos;instr.detdoubleXworldBarycenter position along world x axis (X_WORLD)degpos.cartesian.x;instr.detdoubleYworldBarycenter position along world y axis (Y_WORLD)degpos.cartesian.y;instr.detdoubleRAJ2000Right ascension of barycenter (J2000) (ra)degpos.eq.ra;meta.mainindexedDEJ2000Declination of barycenter (J2000) (dec)degpos.eq.dec;meta.mainindexedEll1 - B_IMAGE/A_IMAGE (ELLIPTICITY)meta.notefloatFWHMWFWHM assuming a gaussian core (FWHM_WORLD)degphys.angSizedoubleS/GS/G classifier output (CLASS_STAR)src.class.starGalaxyfloatFlagsExtraction flags (FLAGS)meta.code.errorfloatI1magAuto? Kron-like elliptical 3.6um aperture magnitude (Vega) (MAG_AUTO_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAuto? rms error for AUTO 3.6um magnitude (Vega) (MAGGERR_AUTO_I1)magstat.errorfloatnullableI1magAp1? 3 arcsec aperture 3.6um magnitude (Vega) (MAG_APER1_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAp1? rms error vector for 3 arcsec aperture 3.6um mag. (Vega) (MAGGERR_APER1_I1)magstat.errorfloatnullableI1magAp2? 4 arcsec aperture 3.6um magnitude (Vega) (MAG_APER2_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAp2? rms error vector for 4 arcsec aperture 3.6um mag. (Vega) (MAGGERR_APER2_I1)magstat.errorfloatnullableI1magAp3? 5 arcsec aperture 3.6um magnitude (Vega) (MAG_APER3_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAp3? rms error vector for 5 arcsec aperture 3.6um mag. (Vega) (MAGGERR_APER3_I1)magstat.errorfloatnullableI1magAp4? 6 arcsec aperture 3.6um magnitude (Vega) (MAG_APER4_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAp4? rms error vector for 6 arcsec aperture 3.6um mag. (Vega) (MAGGERR_APER4_I1)magstat.errorfloatnullableI1magAp5? 12 arcsec aperture 3.6um magnitude (Vega) (MAG_APER5_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magAp5? rms error vector for 12 arcsec aperture 3.6um mag. (Vega) (MAGGERR_APER5_I1)magstat.errorfloatnullableI1magIso? Isophotal 3.6um magnitude (Vega) (MAG_ISO_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magIso? rms error for isophotal 3.6um magnitude (Vega) (MAGERR_ISO_I1)magstat.errorfloatnullableI1magIsoC? Corrected isophotal 3.6um magnitude (Vega) (MAG_ISOCOR_I1)magphot.mag;em.IR.3-4umfloatnullablee_I1magIsoC? rms error for corrected isophotal 3.6um magnitude (Vega) (MAGERR_ISOCOR_I1)magstat.errorfloatnullableFI1Auto? Flux at 3.6um within a Kron-like elliptical aperture (FLUX_AUTO_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Auto? rms error for AUTO flux at 3.6um (FLUXERR_AUTO_I1)uJystat.errordoublenullableFI1Ap1? 3 arcsec aperture flux at 3.6um (FLUX_APER1_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Ap1? rms error for 3 arcsec aperture flux at 3.6um (FLUXERR_APER1_I1)uJystat.errordoublenullableFI1Ap2? 4 arcsec aperture flux at 3.6um (FLUX_APER2_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Ap2? rms error for 4 arcsec aperture flux at 3.6um (FLUXERR_APER2_I1)uJystat.errordoublenullableFI1Ap3? 5 arcsec aperture flux at 3.6um (FLUX_APER3_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Ap3? rms error for 5 arcsec aperture flux at 3.6um (FLUXERR_APER3_I1)uJystat.errordoublenullableFI1Ap4? 6 arcsec aperture flux at 3.6um (FLUX_APER4_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Ap4? rms error for 6 arcsec aperture flux at 3.6um (FLUXERR_APER4_I1)uJystat.errorfloatnullableFI1Ap5? 12 arcsec aperture flux at 3.6um (FLUX_APER5_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Ap5? rms error for 12 arcsec aperture flux at 3.6um (FLUXERR_APER5_I1)uJystat.errorfloatnullableFI1Iso? Isophotal flux at 3.6um (FLUX_ISO_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1Iso? rms error for isophotal flux at 3.6um (FLUXERR_ISO_I1)uJystat.errordoublenullableFI1IsoC? Corrected isophotal flux at 3.6um (FLUX_ISOCOR_I1)uJyphot.mag;em.IR.3-4umdoublenullablee_FI1IsoC? rms error for corrected isophotal flux at 3.6um (FLUXERR_ISOCOR_I1)uJystat.errordoublenullableI2magAuto? Kron-like elliptical aperture 4.5um magnitude (Vega) (MAG_AUTO_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAuto? rms error for AUTO 4.5um magnitude (Vega) (MAGGERR_AUTO_I2)magstat.errorfloatnullableI2magAp1? 3 arcsec aperture 4.5um magnitude (Vega) (MAG_APER1_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAp1? rms error vector for 3 arcsec aperture 4.5um mag. (Vega) (MAGGERR_APER1_I2)magstat.errorfloatnullableI2magAp2? 4 arcsec aperture 4.5um magnitude (Vega) (MAG_APER2_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAp2? rms error vector for 4 arcsec aperture 4.5um mag. (Vega) (MAGGERR_APER2_I2)magstat.errorfloatnullableI2magAp3? 5 arcsec aperture 4.5um magnitude (Vega) (MAG_APER3_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAp3? rms error vector for 5 arcsec aperture 4.5um mag. (Vega) (MAGGERR_APER3_I2)magstat.errorfloatnullableI2magAp4? 6 arcsec aperture 4.5um magnitude (Vega) (MAG_APER4_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAp4? rms error vector for 6 arcsec aperture 4.5um mag. (Vega) (MAGGERR_APER4_I2)magstat.errorfloatnullableI2magAp5? 12 arcsec aperture 4.5um magnitude (Vega) (MAG_APER5_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magAp5? rms error vector for 12 arcsec aperture 4.5um mag. (Vega) (MAGGERR_APER5_I2)magstat.errorfloatnullableI2magIso? Isophotal 4.5um magnitude (Vega) (MAG_ISO_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magIso? rms error for isophotal 4.5um magnitude (Vega) (MAGERR_ISO_I2)magstat.errorfloatnullableI2magIsoC? Corrected isophotal 4.5um magnitude (Vega) (MAG_ISOCOR_I2)magphot.mag;em.IR.4-8umfloatnullablee_I2magIsoC? rms error for corrected isophotal 4.5um magnitude (Vega) (MAGERR_ISOCOR_I2)magstat.errorfloatnullableFI2Auto? Flux at 4.5um within a Kron-like elliptical aperture (FLUX_AUTO_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Auto? rms error for AUTO flux at 4.5um (FLUXERR_AUTO_I2)uJystat.errorfloatnullableFI2Ap1? 3 arcsec aperture flux at 4.5um (FLUX_APER1_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Ap1? rms error for 3 arcsec aperture flux at 4.5um (FLUXERR_APER1_I2)uJystat.errordoublenullableFI2Ap2? 4 arcsec aperture flux at 4.5um (FLUX_APER2_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Ap2? rms error for 4 arcsec aperture flux at 4.5um (FLUXERR_APER2_I2)uJystat.errordoublenullableFI2Ap3? 5 arcsec aperture flux at 4.5um (FLUX_APER3_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Ap3? rms error for 5 arcsec aperture flux at 4.5um (FLUXERR_APER3_I2)uJystat.errordoublenullableFI2Ap4? 6 arcsec aperture flux at 4.5um (FLUX_APER4_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Ap4? rms error for 6 arcsec aperture flux at 4.5um (FLUXERR_APER4_I2)uJystat.errordoublenullableFI2Ap5? 12 arcsec aperture flux at 4.5um (FLUX_APER5_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Ap5? rms error for 12 arcsec aperture flux at 4.5um (FLUXERR_APER5_I2)uJystat.errorfloatnullableFI2Iso? Isophotal flux at 4.5um (FLUX_ISO_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2Iso? rms error for isophotal flux at 4.5um (FLUXERR_ISO_I2)uJystat.errordoublenullableFI2IsoC? Corrected isophotal flux at 4.5um (FLUX_ISOCOR_I2)uJyphot.mag;em.IR.4-8umdoublenullablee_FI2IsoC? rms error for corrected isophotal flux at 4.5um (FLUXERR_ISOCOR_I2)uJystat.errordoublenullablePM31? Probability for being M31 object (P_M31) (1)stat.fit.goodnessdoublenullableNROBUST? Robust count = P(M31)/COMPLETENESS (N_ROBUST) (1)stat.fit.goodnessdoublenullableRproj? Projected galactocentric distance (R_PROJ) (1)arcminpos.distance;phys.sizedoublenullableRdeproj? Deprojected galactocentric distance (R_DEPROJ) (1)arcminphys.angSize;pos.galactocentricdoublenullable