Characterizing r-Process Sites through Actinide Production
Name
Holmbeck_2020_J._Phys.__Conf._Ser._1668_012020.pdf
Description
Published version
Size
581.92 KB
Format
Adobe PDF
Checksum (MD5)
6d7dc7e1c3c1908a55990e79a5038016
Author(s)
Holmbeck, Erika M
Surman, Rebecca
Frebel, Anna
McLaughlin, GC
Mumpower, Matthew R
Sprouse, Trevor M
Kawano, Toshihiko
Vassh, Nicole
Beers, Timothy C
Date Issued
2020
Journal
Journal of Physics: Conference Series
Publisher
IOP Publishing
Citation
Holmbeck, Erika M, Surman, Rebecca, Frebel, Anna, McLaughlin, GC, Mumpower, Matthew R et al. 2020. "Characterizing r-Process Sites through Actinide Production." Journal of Physics: Conference Series, 1668 (1).
Version
Final published version
Abstract
© Published under licence by IOP Publishing Ltd. Of the variations in the elemental abundance patterns of stars enhanced with r-process elements, the variation in the relative actinide-To-lanthanide ratio is among the most significant. We investigate the source of these actinide differences in order to determine whether these variations are due to natural differences in astrophysical sites, or due to the uncertain nuclear properties that are accessed in r-process sites. We find that variations between relative stellar actinide abundances is most likely astrophysical in nature, owing to how neutron-rich the ejecta from an r-process event may be. Furthermore, if an r-process site is capable of generating variations in the neutron-richness of its ejected material, then only one type of r-process site is needed to explain all levels of observed relative actinide enhancements.
MIT Department
Massachusetts Institute of Technology. Department of Physics
MIT Kavli Institute for Astrophysics and Space Research
Terms of Use
Creative Commons Attribution 3.0 unported license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1088/1742-6596/1668/1/012020
