J/ApJ/795/170ivo://CDS.VizieR/J/ApJ/795/170doi:10.26093/cds/vizier.17950170CDSJennings Z.G.Williams B.F.Murphy J.W.Dalcanton J.J.Gilbert K.M.,Dolphin A.E.Weisz D.R.Fouesneau M.2018-01-23T06:45:09Z2017-06-02T14:19:10ZCDS support team

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

cds-question@unistra.frgalaxiessupernova-remnantshst-photometryUsing Hubble Space Telescope photometry to measure star formation histories, we age-date the stellar populations surrounding supernova remnants (SNRs) in M31 and M33. We then apply stellar evolution models to the ages to infer the corresponding masses for their supernova progenitor stars. We analyze 33 M33 SNR progenitors and 29 M31 SNR progenitors in this work. We then combine these measurements with 53 previously published M31 SNR progenitor measurements to bring our total number of progenitor mass estimates to 115. To quantify the mass distributions, we fit power laws of the form dN/dM{prop.to}M^-{alpha}^. Our new larger sample of M31 progenitors follows a distribution with {alpha}=4.4_-0.4_^+0.4^, and the M33 sample follows a distribution with {alpha}=3.8_-0.5_^+0.4^. Thus both samples are consistent within the uncertainties, and the full sample across both galaxies gives {alpha}=4.2_-0.3_^+0.3^. Both the individual and full distributions display a paucity of massive stars when compared to a Salpeter initial mass function, which we would expect to observe if all massive stars exploded as SN that leave behind observable SNR. If we instead fix {alpha}=2.35 and treat the maximum mass as a free parameter, we find M_max_~35-45 M_{sun}_, indicative of a potential maximum cutoff mass for SN production. Our results suggest that either SNR surveys are biased against finding objects in the youngest (<10 Myr old) regions, or the highest mass stars do not produce SNe.2014ApJ...795..170Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/795/170CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/114/215 : New SNR candidates in M31 (Magnier+, 1995)J/ApJS/187/495 : SNRs in M33 from optical and X-ray (Long+, 2010)J/ApJ/793/134 : M33 SNR candidates properties (Lee+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/795/170https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/795/170http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/795/170https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/795/170https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/795/170http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/795/170GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/795/170/table1 (SNRs for M31 and M33)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/795/170/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/795/170/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/795/170/table1?GETtext/xml+votable180.050000true10.993341.2230.0055555555555555566/2154 2155 2623 2666https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/795/170?format=asciidefaultJ/ApJ/795/170/table1SNRs for M31 and M33SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxy[M31-M33] SNR galaxymeta.id.parentcharIDSNR identifiermeta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J200)degpos.eq.dec;meta.mainFieldHST field (1)meta.id;obs.fieldcharProgHST program identifiermeta.id;obsintInstInstrument (ACS/WFC, WFPC2)instrcharFilt1First HST filter (F475W, F555W, F606W)meta.code;instr.filtercharmag150% Completeness limit magnitude in the filter Filt1magphot.magfloatFilt2[F814W] Second HST filtermeta.code;instr.filtercharmag250% Completeness limit magnitude in the filter Filt2magphot.magfloatCat[1/4] Catalog (2)meta.idint