CANCELLED: Heavy Element Abundance Variations and Stellar Substructure in the Solar Neighborhood
by
Jennifer Simmerer(Lund Observatory)
→
Europe/Stockholm
FA 31
FA 31
Description
The analysis of chemical abundances in stars is a powerful tool for
unraveling the nucleosynthetic and star formation history of stellar
populations. When applied to stars in the Milky Way, we obtain a wealth
of detail about the origins of Galactic stellar populations. Studies of
light element abundances have already been used to distinguish stellar
substructure in the Galactic disk and there is hope that abundance
patterns will also be able to separate merger remnants from native Milky
Way stars. There are signs that heavy elements may reveal an even greater
degree of detail. I will present work on the abundances of the elements
La, Eu, and Ba in a large number of disk stars. Early results indicate
that abundance variations exist within the disk populations, which in turn
points to further substructure arising from star formation events
separated in time or space.
