Sie können Bookmarks mittels Listen verwalten, loggen Sie sich dafür bitte in Ihr SLUB Benutzerkonto ein.
Medientyp:
E-Artikel
Titel:
Origin of Short-Lived Radionuclides
Beteiligte:
Russell, Sara S.;
Gounelle, Matthieu;
Hutchison, Robert
Erschienen:
The Royal Society, 2001
Erschienen in:Philosophical Transactions: Mathematical, Physical and Engineering Sciences
Sprache:
Englisch
ISSN:
1364-503X
Entstehung:
Anmerkungen:
Beschreibung:
<p>This paper reviews the evidence for short-lived radionuclides in the early Solar System and critically evaluates models for their origin. Radionuclides with half-lives of less than 50 Myr for which firm and consistent evidence has been found are <latex>$^{10}Be,\>^{26}Al, \>^{41}Ca,\>^{53}Mn,\>^{60}Fe,\>^{107}Pd,\>^{129}I$</latex> and <sup>182</sup>Hf. The oldest Solar System objects, calcium-aluminium-rich inclusions (CAIs), contained <latex>$^{10}Be, \>^{26}Al,\>^{41}Ca$</latex> and <sup>53</sup>Mn on formation. We discuss whether a spallation or stellar origin for the radionuclides is more likely, and conclude that the initial presence of short-lived radionuclides in CAIs can be most easily explained if these formed by spallation reactions close to the protosun.</p>