J/A+A/549/A47ivo://CDS.VizieR/J/A+A/549/A47doi:10.26093/cds/vizier.35490047CDSLianou S.Cole A.A.2013-05-20T21:56:32Z2012-12-19T20:16:25ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryhst-photometryWe study the resolved stellar populations and derive the star formation history of the Sculptor dwarf irregular galaxy (SDIG), a gas-rich dwarf galaxy member of the NGC 7793 subgroup in the Sculptor group of galaxies. We constructed a colour - magnitude diagram (CMD) using archival observations from the Hubble Space Telescope/Advanced Camera for Surveys in order to examine the stellar content of SDIG, as well as the spatial distribution of stars selected within different stellar evolutionary phases. We derived the star formation history of SDIG using a maximum-likelihood fit to the CMD.2013A&A...549A..47Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/549/A47CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/112/407 : Variable Stars in the Sculptor dwarf galaxy (Kaluzny+, 1995)J/AJ/110/2747 : Stars in Sculptor dwarf spheroidal galaxy (Schweitzer+ 1995)J/AJ/130/1065 : Sculptor dwarf spheroidal galaxy members (Coleman+, 2007)J/AJ/135/1993 : JHK magnitudes of Sculptor dSph RR Lyrae (Pietrzynski+ 2008)J/ApJ/705/328 : Abundance measurements in Sculptor dSph (Kirby+, 2009)J/MNRAS/363/734 : Sculptor dSph variables metal abundances (Clementini+, 2005)J/MNRAS/414/3492 : JHKs photometry of Sculptor dSph galaxy (Menzies+, 2011)J/AJ/131/375 : Sculptor dSph giants photometry & RV (Westfall+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/549/A47https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/549/A47http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/549/A47https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/549/A47https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/549/A47http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/549/A47GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/549/A47/sdig (Position and photometry of stars in Sculptor Dwarf Irregular galaxy (SDIG))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/549/A47/sdig?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/549/A47/sdig?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/549/A47/sdig?GETtext/xml+votable180.050000true2.08168-34.59930.0055555555555555566/164142.3657755224268815e-19 3.9105737390043815e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/549/A47?format=asciiOpticaldefaultJ/A+A/549/A47/sdigPosition and photometry of stars in Sculptor Dwarf Irregular galaxy (SDIG)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension J2000 (degrees)degpos.eq.ra;meta.mainDEJ2000Declination J2000 (degrees)degpos.eq.dec;meta.mainF606WHST/ACS F606W magnitudemagphot.mag;em.opt.Rfloate_F606WF606W magnitude error (1)magstat.errorfloatVmagV magnitude (Cousins)magphot.mag;em.opt.VfloatF814WHST/ACS F814W magnitude (ACS filter system)magphot.mag;em.opt.Ifloate_F814WF814W magnitude error (1)magstat.errorfloatImagI magnitude (Cousins)magphot.mag;em.opt.IfloatXcooX-coordinates in pixels (2)pixpos.cartesian.x;instr.detfloatYcooY-coordinates in pixels (2)pixpos.cartesian.y;instr.detfloat