J/A+A/464/495ivo://CDS.VizieR/J/A+A/464/495doi:10.26093/cds/vizier.34640495CDSMora M.D.Larsen S.S.Kissler-Patig M.2007-12-15T15:35:02Z2007-12-15T16:30:50ZCDS support team

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

cds-question@unistra.frgalaxiesstellar-associationsinfrared-photometryvisible-astronomybroad-band-photometryStar clusters are present in almost all types of galaxies. Here we investigate the star cluster population in the low-luminosity, unperturbed spiral galaxy NGC 45, which is located in the nearby Sculptor group. Both the old (globular) and young star-cluster populations are studied. Previous ground-based observations have suggested that NGC 45 has few if any "massive" young star clusters. We aim to study the population of lower-mass "open" star clusters and also identify old globular clusters that could not be distinguished from foreground stars in the ground-based data. Star clusters were identified using UBVI imaging from the Advanced Camera for Surveys (ACS) and the Wide Field Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope. From broad band colors and comparison with simple stellar population (SSP) models assuming a fixed metallicity, we derived the age, mass, and extinction. We also measured the radius for each star cluster candidate.2007A&A...464..495Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/464/495CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/464/495https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/464/495http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/464/495https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/464/495https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/464/495http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/464/495GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/464/495/tables (Young star clusters (tables 2-4 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/464/495/tables?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/464/495/tables?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/464/495/tables?GETtext/xml+votable180.050000true3.5644167-23.21336390.0055555555555555566/16605https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/464/495?format=asciiOpticalInfrareddefaultJ/A+A/464/495/tablesYoung star clusters (tables 2-4 of the paper)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[MLK2007]Sequential numbermeta.recordintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination sign (J2000)pos.eq.dec;meta.mainBmagB (F435W) magnitudemagphot.mag;em.opt.Bfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatVmagV (F555W) magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatImagI (F814W) magnitudemagphot.mag;em.opt.Ifloate_Imagrms uncertainty on Imagmagstat.error;phot.mag;em.opt.IfloatUmag? U (F336W) magnitudemagphot.mag;em.opt.Ufloatnullablee_Umag? rms uncertainty on Umagmagstat.error;phot.mag;em.opt.UfloatnullableFWHMFWHM derived using SExtractor for F435W bandpixphys.angSizefloatFWHMBFWHM derived using ISHAPE for F435W bandpixphys.angSizefloatFWHMVFWHM derived using ISHAPE for F555W bandpixphys.angSizefloatFWHMIFWHM derived using ISHAPE for F814W bandpixphys.angSizefloatAV1? Extinction derived for metallicity model 1magobs.atmos.extinctionfloatnullablen_AV1[*] *: best fit value derived using SExtractormeta.notecharAV2? Extinction derived for metallicity model 2magobs.atmos.extinctionfloatnullablen_AV2[*] *: best fit value derived using SExtractormeta.notecharAV3? Extinction derived for metallicity model 3magobs.atmos.extinctionfloatnullablen_AV3[*] *: best fit value derived using SExtractormeta.notecharAV4? Extinction derived for metallicity model 4magobs.atmos.extinctionfloatnullablen_AV4[*] *: best fit value derived using SExtractormeta.notecharlogAge1? Cluster age derived for metallicity model 1log(yr)time.agefloatnullablen_logAge1[*] *: best fit value derived using SExtractormeta.notecharlogAge2? Cluster age derived for metallicity model 2log(yr)time.agefloatnullablen_logAge2[*] *: best fit value derived using SExtractormeta.notecharlogAge3? Cluster age derived for metallicity model 3log(yr)time.agefloatnullablen_logAge3[*] *: best fit value derived using SExtractormeta.notecharlogAge4? Cluster age derived for metallicity model 4log(yr)time.agefloatnullablen_logAge4[*] *: best fit value derived using SExtractormeta.notecharlogM1? Cluster mass derived for metallicity model 1log(solMass)phys.massfloatnullablen_logM1[*] *: best fit value derived using SExtractormeta.notecharlogM2? Cluster mass derived for metallicity model 2log(solMass)phys.massfloatnullablen_logM2[*] *: best fit value derived using SExtractormeta.notecharlogM3? Cluster mass derived for metallicity model 3log(solMass)phys.massfloatnullablen_logM3[*] *: best fit value derived using SExtractormeta.notecharlogM4? Cluster mass derived for metallicity model 4log(solMass)phys.massfloatnullablen_logM4[*] *: best fit value derived using SExtractormeta.notechar