J/A+A/654/A6ivo://CDS.VizieR/J/A+A/654/A6doi:10.26093/cds/vizier.36540006CDSNaujalis R.Stonkute R.Vansevicius V.2023-09-01T13:59:38Z2021-10-01T08:14:18ZCDS support team

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

cds-question@unistra.frgalaxieshst-photometryvisible-astronomyinfrared-astronomyultraviolet-astronomyThis study is the sixth of a series that investigates degeneracy and stochasticity problems present in the determination of the age, mass, extinction, and metallicity of partially resolved or unresolved star clusters in external galaxies when using Hubble Space Telescope broadband photometry. In the fifth publication, it was noticed that inconsistencies in cluster colour indices, which arise due to projected foreground and background stars on the apertures, enhance age-metallicity-extinction degeneracies. In this work we aim to present new aperture photometry results for a sample of star clusters from the M31 Panchromatic Hubble Andromeda Treasury (PHAT) survey. We employed two methods of aperture photometry. The first method is ordinary aperture photometry to measure total cluster fluxes. The second method was introduced to avoid the brightest foreground and background stars that project onto large apertures. This method employs smaller apertures, adapted to cover a central part of clusters, and applies an aperture correction, derived for the F475W passband, to other passbands. We note that this procedure is valid only for clusters without prominent systematic gradients of colour indices beyond half-light radii. We present two catalogues of star cluster aperture photometry (produced by applying ordinary aperture photometry and adaptive aperture photometry methods) with estimated uncertainties for a sample of 1181 star clusters from the M31 PHAT survey. Compared to the M31 PHAT fundamental star cluster aperture photometry catalogue published by Johnson et al., there are changes made in the following: cluster centre coordinates, aperture sizes, and sky background estimates.2021A&A...654A...6Nhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/654/A6CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/802/127 : PHAT stellar cluster survey. II. AP catalog (Johnson+, 2015)J/A+A/602/A112 : M31 PHAT star clusters (de Meulenaer+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/654/A6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/654/A6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/654/A6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/654/A6https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/654/A6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/654/A6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/654/A6/table2 (M31 star cluster T aperture photometry results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/654/A6/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/654/A6/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/654/A6/table2?GETtext/xml+votable180.050000true11.4355161141.698561940.005555555555555556Cone search capability for table J/A+A/654/A6/table3 (M31 star cluster C aperture photometry results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/654/A6/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/654/A6/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/654/A6/table3?GETtext/xml+votable180.050000true11.4355161141.698561940.0055555555555555566/2623 2666 2709 27522.0401237512456292e-19 7.605786964834612e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/654/A6?format=asciiUVOpticalInfrareddefaultJ/A+A/654/A6/table2M31 star cluster T aperture photometry resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPHATDisplay the AP catalog data (Johnson et al., 2015, Cat. J/ApJ/802/127)meta.ref.urlcharAPID[1/6182] Cluster identification number in PHAT, Johnson et al., 2015, J/ApJ/802/127meta.id;meta.mainintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRTRadius of the Total (T) aperturearcsecstat.fit.paramfloatRhHalf-light radius in the passband F475Warcsecphys.angSize;em.opt.BfloatF275W? Total aperture magnitude in F275Wmagphot.mag;em.UV.200-300nmfloatnullablee_F275W? Error of the F275W magnitudemagstat.errorfloatnullableF336WTotal aperture magnitude in F336Wmagphot.mag;em.opt.UfloatSimbadSimbad column added by the CDSmeta.ref.urlchare_F336WError of the F336W magnitudemagstat.errorfloatF475WTotal aperture magnitude in F475Wmagphot.mag;em.opt.Bfloate_F475WError of the F475W magnitudemagstat.errorfloatF814WTotal aperture magnitude in F814Wmagphot.mag;em.opt.Ifloate_F814WError of the F814W magnitudemagstat.errorfloatF110W? Total aperture magnitude in F110Wmagphot.mag;em.IR.Jfloatnullablee_F110W? Error of the F110W magnitudemagstat.errorfloatnullableF160W? Total aperture magnitude in F160Wmagphot.mag;em.IR.Hfloatnullablee_F160W? Error of the F160W magnitudemagstat.errorfloatnullableJ/A+A/654/A6/table3M31 star cluster C aperture photometry resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPHATDisplay the AP catalog data (Johnson et al., 2015, Cat. J/ApJ/802/127)meta.ref.urlcharAPID[1/6182] Cluster identification number in PHAT, Johnson et al., 2015, J/ApJ/802/127meta.id;meta.mainintRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainRTRadius of the Total (T) aperturearcsecstat.fit.paramfloatRCRadius of the Colour (C) aperturearcsecstat.fit.paramfloatF275W? Colour aperture magnitude in F275Wmagphot.mag;em.UV.200-300nmfloatnullablee_F275W? Error of the F275W magnitudemagstat.errorfloatnullableF336W? Colour aperture magnitude in F336Wmagphot.mag;em.opt.Ufloatnullablee_F336W? Error of the F336W magnitudemagstat.errorfloatnullableF475WColour aperture magnitude in F475Wmagphot.mag;em.opt.Bfloate_F475WError of the F475W magnitudemagstat.errorfloatF814WColour aperture magnitude in F814Wmagphot.mag;em.opt.Ifloate_F814WError of the F814W magnitudemagstat.errorfloatF110W? Colour aperture magnitude in F110Wmagphot.mag;em.IR.Jfloatnullablee_F110W? Error of the F110W magnitudemagstat.errorfloatnullableF160W? Colour aperture magnitude in F160Wmagphot.mag;em.IR.Hfloatnullablee_F160W? Error of the F160W magnitudemagstat.errorfloatnullable