First stars. I. The extreme r-element rich, iron-poor halo giant CS31082-001. Implications for the r--process site(s) and radioactive cosmochronology

Hill, V.; Plez, B.; Cayrel, R.; C. Beers, Timothy; Nordström, B.; Andersen, J.; Spite, M.; Spite, F.; Barbuy, B.; P., Bonifactio,; Depagne, É.; François, P.; Primas, F.

doi:10.1051/0004-6361:20020434

Public

First stars. I. The extreme r-element rich, iron-poor halo giant CS31082-001. Implications for the r--process site(s) and radioactive cosmochronology

Published in Lund University Publications (Lund University) • Jan 1, 2002

Authors:

V. Hill

B. Plez

R. Cayrel

Abstract

We present a high-resolution ( R= 75 000, S/ N ) spectroscopic analysis of the bright ( V= 11.7), extreme halo giant CS 31082-001([Fe/H] = -2.9), obtained in an ESO-VLT Large Programme dedicated to very metal-poor stars. We find CS 31082-001 to be extremely rich in r-process elements, comparable in ...

Subject

Physics

Astrophysics

Giant star

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