Lead (Pb) in the C-rich, s-process rich, metal poor subgiant LP625-44

Authors
Ryan, SG Aoki, W Norris, JE Beers, TC Gallino, R Busso, M Ando, H
Citation
Sg. Ryan et al., Lead (Pb) in the C-rich, s-process rich, metal poor subgiant LP625-44, NUCL PHYS A, 688(1-2), 2001, pp. 209C-212C
Citations number
15
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
688
Issue
1-2
Year of publication
2001
Pages
209C - 212C
Database
ISI
SICI code
0375-9474(20010521)688:1-2<209C:L(ITCS>2.0.ZU;2-Y
Abstract
LP 625-44 is a metal-poor ([Fe/H] = -2.7) high-proper-motion subgiant with a large overabundance of carbon ([C/Fe] = 12.0) and s-process elements ([Ba /Fe] = +2.6) believed to be due to mass transferred from a now-extinct meta l-poor AGE companion. Many elements including lead have been measured. Thes e provide strong constraints on the C-13 pocket in the now-extinct mass don or when it was in its AGB stage of evolution.