| Full text | |
| Author(s): Show less - |
Christlieb, N.
;
Beers, T. C.
;
Barklem, P. S.
;
Bessell, M. S.
;
Hill, V.
;
Holmberg, J.
;
Korn, A.
;
Marsteller, B.
;
Mashonkina, L.
;
Zickgraf, F. J.
;
et al.
Total Authors: 11
|
| Document type: | Journal article |
| Source: | Astronomy & Astrophysics; v. 428, n. 3, p. 1027-1037, 2004. |
| Field of knowledge: | Physical Sciences and Mathematics - Astronomy |
| Abstract | |
We report on a dedicated effort to identify and study metal-poor stars that are strongly enhanced in r-process elements ([r/Fe] > +1.0 dex; hereafter r-II stars), the Hamburg/ ESO R-process enhanced star survey (HERES). In this paper we describe a pilot study based on a set of 35 stars, including 23 from HK survey, eight from HES, and four comparison stars. We discovered two new r-II stars, CS 29497-004 ([Eu/Fe]=1.64+/-0.22) and CS 29491-069 ([Eu/Fe]=1.08+/-0.23). (AU) | |
| FAPESP's process: | 00/10406-4 - Chemical evolution and stellar populations of the galaxy, magellanic clouds and elliptical galaxies, based on spectroscopy and imaging |
| Grantee: | Beatriz Leonor Silveira Barbuy |
| Support Opportunities: | Research Projects - Thematic Grants |