Efficient Searches for r-Process-Enhanced Metal-Poor Stars

Details Efficient Searches for r-Process-Enhanced Metal-Poor Stars Efficient Searches for r-Process-Enhanced Metal-Poor Stars

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rpao.conf..109b&link_type=abstract

THE r-PROCESS The Astrophysical Origin of the Heavy Elements and Related Rare Isotope Accelerator Physics. Proceedings of the Fi

Physics

Nuclear Physics

Nuclear Theory

Scientific paper

We describe the motivation and execution plan for HERES: The Hamburg/ESO R-process-Enhanced Star survey, an onging effort to significantly increase the numbers of known metal-poor stars with highly elevated ratios of their r-process elements, similar to the first few stars of this class, CS 22892-052 and CS 31082-001. Such stars provide the best available probes of the operation of the astrophysical r-process, the opportunity to constrain the site(s) in which it occurs, and for exploration of the applicability of cosmo-chronometers, such as obtained from Eu/Th and U/Th. We outline a number of the important questions that need to be considered in order for progress to be made. First results from HERES should be available by the time this contribution appears in print.

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