25–30 Jun 2006
CERN, Geneva
Europe/Zurich timezone

Chemical Compositions Derived from Near Ultra-Violet Observations of Low-Metallicity Stars: New Insights into the Sites of Neutron-Capture Nucleosynthesis Processes

27 Jun 2006, 09:40
30m
CERN, Geneva

CERN, Geneva

Speaker

Inese Ivans (Carnegie Observatories & princeton university)

Description

Numerous signatures of r- and s-process nucleosynthesis can be observed in the photospheres of stars. To date, however, the stellar abundance determinations of many of the elements have been scarce because a large portion of the dominant atomic transitions reside in the UV. To be reported in the context of other recent results of neutron-capture studies, are the abundances (or upper limits) of Nb, Pd, Ag, Yb, Hf, Pt, Pb, and other neutron-capture elements for a sample of stars observed with the near-UV sensitive detector on the High Resolution Echelle Spectrometer of the Keck I telescope.

Author

Inese Ivans (Carnegie Observatories & princeton university)

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