Very heavy elements in the HgMn star chi Lupi

Authors
Publication date
1 January 1998
Publisher
Astronomical Society of the Pacific (ASP)

Abstract

Abundances for the elements W, Os, and Bi are presented for the HgMn star chi Lupi, based upon GHRS echelle-mode spectra and a synthetic spectrum analysis. The tungsten abundance is consistent with a solar-system value while the osmium and bismuth abundances reflect enhancements. With these new data we are able to quantitatively define an abundance peak within the element range Z = 74 through 83

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