SIMBAD references

1999MNRAS.305..693C - Mon. Not. R. Astron. Soc., 305, 693-700 (1999/May-3)

Copper and barium abundances in the Ursa Major Moving Group.

CASTRO S., PORTO DE MELLO G.F. and DA SILVA L.

Abstract (from CDS):

We present Cu and Ba abundances for seven GK dwarf stars, members of the solar-metallicity, 0.3-Gyr-old Ursa Major Moving Group. All analysed member stars show [Ba/Fe] excesses of +0.3-plus, associated with [Cu/Fe] deficiencies of up to -0.23 dex. The present results suggest that there is an anticorrelation between the abundances of Cu and the heavy elements produced by the main component of the neutron-capture s-process. Other possible anomalies are Na and C deficiencies with respect to normal solar-metallicity stars. The new data do not confirm the recent claim that the group member HR 6094 is a Ba dwarf star.

Abstract Copyright: 1999 RAS

Journal keyword(s): stars: abundances - Galaxy: abundances - open clusters and associations: individual: Ursa Major

Simbad objects: 26

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:1999MNRAS.305..693C and select 'bookmark this link' or equivalent in the popup menu