J/ApJ/891/85ivo://CDS.VizieR/J/ApJ/891/85doi:10.26093/cds/vizier.18910085CDSde los Reyes M.A.C.Kirby E.N.Seitenzahl I.R.Shen K.J.2022-09-05T13:07:28Z2021-09-08T14:40:25ZCDS support team

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

cds-question@unistra.frchemical-abundancesvisible-astronomyspectroscopyglobular-star-clustersgalaxieseffective-temperatureManganese abundances are sensitive probes of the progenitors of TypeIa supernovae (SNe Ia). In this work, we present a catalog of manganese abundances in dwarf spheroidal satellites of the Milky Way, measured using medium-resolution spectroscopy. Using a simple chemical evolution model, we infer the manganese yield of SNe Ia in the Sculptor dwarf spheroidal galaxy (dSph) and compare to theoretical yields. The sub-solar yield from SNIa ([Mn/Fe]_Ia_=-0.30_-0.03_^+0.03^ at [Fe/H]=-1.5dex, with negligible dependence on metallicity) implies that sub-Chandrasekhar-mass (sub-MCh) white dwarf progenitors are the dominant channel of SNe Ia at early times in this galaxy, although some fraction (>~20%) of M_Ch_ Type Ia or Type Iax SNe are still needed to produce the observed yield. First-order corrections for deviations from local thermodynamic equilibrium increase the inferred [Mn/Fe]_Ia_ by as much as ~0.3dex. However, our results also suggest that the nucleosynthetic source of SNe Ia may depend on environment. In particular, we find that dSphs with extended star formation histories (Leo I, Fornax dSphs) appear to have higher [Mn/Fe] at a given metallicity than galaxies with early bursts of star formation (Sculptor dSph), suggesting that M_Ch_ progenitors may become the dominant channel of SNe Ia at later times in a galaxy's chemical evolution.2020ApJ...891...85Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/891/85CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/195 : Globular Clusters in the Milky Way (Harris, 1996)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)J/AJ/131/2949 : Mn abundances in cluster and field stars (Sobeck+, 2006)J/A+A/447/685 : Elemental abundance analyses. XXIX. (Adelman+, 2006)J/A+A/467/665 : Manganese abundances in the Galactic disk (Feltzing+, 2007)J/A+A/501/519 : Extremely metal-poor turnoff stars abund. (Bonifacio+, 2009)J/ApJ/705/328 : Abundance measurements in Sculptor dSph (Kirby+, 2009)J/ApJ/708/560 : Spectroscopy of UMa II and Coma Ber (Frebel+, 2010)J/A+A/520/A95 : Abundances of red giants in M54 and Sgr dSph (Carretta+, 2010)J/ApJ/722/1373 : {omega} Centauri giants abundances (Johnson+, 2010)J/A+A/523/A17 : Individual stars in Fornax dSph center (Letarte+, 2010)J/ApJS/191/352 : Abundances in stars of MW dwarf satellites (Kirby+, 2010)J/A+A/527/A18 : EW of 6 subgiants of {omega} Cen (Pancino+, 2011)J/AJ/141/175 : Abundances in M15 RGB/RHB stars (Sobeck+, 2011)J/AJ/144/4 : Dwarf galaxies in the Local Group (McConnachie+, 2012)J/ApJ/789/147 : Star formation histories of LG dwarf galaxies (Weisz+, 2014)J/ApJ/791/101 : Terzan 5 chemical and kinematical properties (Massari+, 2014)J/ApJ/817/53 : Fe-group elemental abundances in HD84937 (Sneden+, 2016)J/ApJ/819/135 : Lithium-rich giants in globular clusters (Kirby+, 2016)J/ApJ/847/16 : NLTE sp. II. Galactic metal-poor stars (Bergemann+, 2017)J/ApJS/237/18 : Cr, Co, and Ni abund. for metal-poor red giants (Kirby+, 2018)J/ApJ/869/50 : Barium abundances of red giant branch stars (Duggan+, 2018)J/A+A/631/A43 : Late-type stars FeI & FeII NLTE lines (Mashonkina+, 2019)J/A+A/631/A80 : Mn lines formation in late-type stars (Bergemann+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/891/85https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/891/85http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/891/85https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/891/85https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/891/85http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/891/85GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/891/85/table7 (Manganese abundance catalog of globular cluster (GC) and dwarf spheroidal galaxy (dSph) stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/891/85/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/891/85/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/891/85/table7?GETtext/xml+votable180.050000true14.8696667-33.64910.005555555555555556Cone search capability for table J/ApJ/891/85/table4 (Effect of varying atmospheric parameters on [Mn/Fe] measurements)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/891/85/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/891/85/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/891/85/table4?GETtext/xml+votable180.050000true14.8696767-33.64916060.005555555555555556Cone search capability for table J/ApJ/891/85/table1 (Spectroscopic targets)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/891/85/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/891/85/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/891/85/table1?GETtext/xml+votable180.050000true198.2291718.166390.0055555555555555566/7417 10444 11691 12405 19091 27574 27580 27975 27981 35549 35720 35969https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/891/85?format=asciiOpticaldefaultJ/ApJ/891/85/table7Manganese abundance catalog of globular cluster (GC) and dwarf spheroidal galaxy (dSph) starsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintANameAbbreviated name of galaxy or GCmeta.idcharIDID of starmeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainTeff[3769/5368] Effective temperature (1)Kphys.temperature.effectiveinte_Teff[9/140]? Error in Teff (1)Kstat.error;phys.temperature.effectivefloatnullablelog(g)[0.2/3.4] Surface gravity (1)log(cm.s**-2)phys.gravityfloate_log(g)[0.1/0.2]? Error in log(g) (1)log(cm.s**-2)stat.errorfloatnullablexi[1.35/2.11] Microturbulent velocity (1)km/sphys.velocfloate_xi[0.05/0.11]? Error in xi (1)km/sstat.errorfloatnullable[a/Fe][-0.8/1.2] Alpha-element log abundance (1)phys.abundfloate_[a/Fe][0.08/0.6] Error in [a/Fe] (1)stat.error;phys.abundfloat[Fe/H][-2.93/-0.61] Iron logarithmic abundance (1)phys.abund.Fefloate_[Fe/H][0.1/0.4] Mean error in FeH (1)stat.error;phys.abund.Fefloat[Mn/Fe][-0.94/1.2] Manganese-to-iron log abundancephys.abundfloate_[Mn/Fe][0.1/0.3] Mean error in [Mn/Fe] (2)stat.error;phys.abundfloatK10Display data from Kirby+, 2010, J/ApJS/191/352 within 1"meta.ref.urlintnullableK16Display data from Kirby+, 2016, J/ApJ/819/135 within 1"meta.ref.urlintnullableJ/ApJ/891/85/table4Effect of varying atmospheric parameters on [Mn/Fe] measurementsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalName of galaxy ("Scl"=Sculptor dSph)meta.id.parentcharID[1003702/1200017] ID of star; <[KGS2010] Scl NNNNNNN> in Simbadmeta.id;meta.mainintdTeff125K[0/0.05] Average change in [Mn/Fe] from varying Teff by 125Karith.rate;phys.abund;stat.meanfloatdTeff250K[0/0.08] Average change in [Mn/Fe] from varying Teff by 250Karith.rate;phys.abund;stat.meanfloatdlogg03[0/0.09] Average change in [Mn/Fe] from varying log(g) by 0.3dexarith.rate;phys.abund;stat.meanfloatdlogg06[0/0.17] Average change in [Mn/Fe] from varying log(g) by 0.6dexarith.rate;phys.abund;stat.meanfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/ApJ/891/85/table1Spectroscopic targetsExpExposure timesstime.duration;obs.exposurecharAirmass[1/2] Airmassobs.airMassfloatSeeing[0.6/1.6]? Seeingarcsecinstr.obsty.seeingfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOTGC=globular cluster or dSph=dwarf spheroidal galaxymeta.code.classcharNameGC or dSph namemeta.id;meta.maincharONameNGC identifiermeta.idcharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainDist[10.4/254] Distancekpcpos.distance;pos.heliocentricfloatSlitSlitmask identifiermeta.notecharNs[21/182] Number of starsmeta.numberintNmesNumber of star with Manganese measurements for this target (link to Table 7)meta.numberintnullableDateDate of observation (UT)time.epochnullableANameAbbreviated name as used in Table 7; column added by CDSmeta.idcharprimaryJ/ApJ/891/85/table3Full line listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[4729/6501.9] Spectral line wavelength0.1nmem.wl;spect.linedoubleIon[4.1/607] Atomic species in MOOG format (1)phys.atmol.ionStagefloatExPot[0/26.6] Excitation potentialeVphys.atmol.excitationfloatlog(gf)[-10/1.11] Oscillator strengthphys.atmol.oscStrengthfloat