{"id":37155,"date":"2025-01-24T15:57:52","date_gmt":"2025-01-24T14:57:52","guid":{"rendered":"https:\/\/karmaka.de\/?p=37155"},"modified":"2025-01-24T15:57:53","modified_gmt":"2025-01-24T14:57:53","slug":"timescales-of-solar-system-formation-based-on-al-ti-isotope-correlation-by-supernova-ejecta","status":"publish","type":"post","link":"https:\/\/karmaka.de\/?p=37155","title":{"rendered":"Timescales of Solar System Formation Based on Al\u2013Ti Isotope Correlation by Supernova Ejecta<span class=\"badge-status\" style=\"background:#787878\">OPEN ACCESS<\/span>&nbsp;"},"content":{"rendered":"\n<p>Tsuyoshi Iizuka, Yuki Hibiya, Satoshi Yoshihara, and Takehito Hayakawa<\/p>\n\n\n\n<p>The Astrophysical Journal Letters, Volume 979, Number 2<\/p>\n\n\n\n<p><a href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/2041-8213\/ada554\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>LINK (OPEN ACCESS)<\/strong><\/a><br><a href=\"https:\/\/iopscience.iop.org\/article\/10.3847\/2041-8213\/ada554\/pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>PDF (OPEN ACCESS)<\/strong><\/a><\/p>\n\n\n\n<p class=\"justify-text\">&#8220;The radioactive decay of short-lived 26Al\u201326Mg has been used to estimate the timescales over which 26Al was produced in a nearby star and the protosolar disk evolved. The chronology commonly assumes that 26Al was uniformly distributed in the protosolar disk; however, this assumption is challenged by the discordance between the timescales defined by the Al\u2013Mg and assumption-free Pb\u2013Pb chronometers. We find that the 26Al heterogeneity is correlated with the nucleosynthetic stable Ti isotope variation, which can be ascribed to the nonuniform distribution of ejecta from a core-collapse supernova in the disk. We use the Al\u2013Ti isotope correlation to calibrate variable 26Al abundances in Al\u2013Mg dating of early solar system processes. The calibrated Al\u2013Mg chronometer indicates a \u22651 Myr gap between parent body accretion ages of carbonaceous and noncarbonaceous chondrites. We further use the Al\u2013Ti isotope correlation to constrain the timing and location of the supernova explosion, indicating that the explosion occurred at 20\u201330 pc from the protosolar cloud, 0.94 +0.25\/\u20130.21 Myr before the formation of the oldest solar system solids. Our results imply that the Sun was born in association with a \u223c25 M\u0298 star.&#8221;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tsuyoshi Iizuka, Yuki Hibiya, Satoshi Yoshihara, and Takehito Hayakawa The Astrophysical Journal Letters, Volume 979, Number 2 LINK (OPEN ACCESS)PDF (OPEN ACCESS) &#8220;The radioactive decay of short-lived 26Al\u201326Mg has been used to estimate the timescales&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[72,71,142],"tags":[238,5830,2669,6474,903,3362,2766,1850,1863],"_links":{"self":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/37155"}],"collection":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=37155"}],"version-history":[{"count":1,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/37155\/revisions"}],"predecessor-version":[{"id":37156,"href":"https:\/\/karmaka.de\/index.php?rest_route=\/wp\/v2\/posts\/37155\/revisions\/37156"}],"wp:attachment":[{"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37155"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37155"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/karmaka.de\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37155"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}