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Eu isotope measurement on single SiC grains from the Murchison meteorite: A new probe of s-process conditions in parent Asymptotic Giant Branch stars

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dc.contributor.authorTerada, K
dc.contributor.authorItoh, K.
dc.contributor.authorHidaka, H.
dc.contributor.authorYoshida, T.
dc.contributor.authorIwamoto, N.
dc.contributor.authorAoki, Wako
dc.contributor.authorWilliams, Ian
dc.date.accessioned2015-12-07T22:23:37Z
dc.date.issued2006
dc.date.updated2015-12-07T09:20:43Z
dc.description.abstractEuropium isotopic composition could be a good probe to investigate the neutron capture process in Asymptotic Giant Branch stars (AGB stars) and/or supernovae, because the 151Sm and 153Sm branchings are sensitive to the neutron densities and temperature. Here, we report Eu isotopic analyses of single SiC grains from primitive meteorites using the sensitive high resolution ion microprobe (SHRIMP). The results are compared with Eu isotopic ratios predicted from the recently determined 151Sm(n, γ) cross-sections and the thermally pulsed s-process model of AGB stars. The observed Eu isotopic composition of SiC grains place constraints on s-process conditions such as the temperature and neutron densities in AGB stars.
dc.identifier.issn1387-6473
dc.identifier.urihttp://hdl.handle.net/1885/20795
dc.publisherElsevier
dc.sourceNew Astronomy Reviews
dc.subjectKeywords: AGB star; Mass spectrometry; Neutron capture process; Presolar grains; s-Process
dc.titleEu isotope measurement on single SiC grains from the Murchison meteorite: A new probe of s-process conditions in parent Asymptotic Giant Branch stars
dc.typeJournal article
local.bibliographicCitation.lastpage586
local.bibliographicCitation.startpage582
local.contributor.affiliationTerada, K, Hiroshima University
local.contributor.affiliationItoh, K., Hiroshima University
local.contributor.affiliationHidaka, H., Hiroshima University
local.contributor.affiliationYoshida, T., Tohoku University
local.contributor.affiliationIwamoto, N., Japan Atomic Energy Agency
local.contributor.affiliationAoki, Wako, National Astronomical Observatory of Japan
local.contributor.affiliationWilliams, Ian, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidWilliams, Ian, u8104453
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor040203 - Isotope Geochemistry
local.identifier.absfor020110 - Stellar Astronomy and Planetary Systems
local.identifier.ariespublicationu4047674xPUB14
local.identifier.citationvolume50
local.identifier.doi10.1016/j.newar.2006.06.006
local.identifier.scopusID2-s2.0-33749156726
local.type.statusPublished Version

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