Speaker
Description
Ultra-faint dwarf galaxies are ideal systems to perform stellar
archaeology, as each galaxy provides multiple metal-poor stars sampling an
independent burst of star formation and chemical enrichment from the early
universe. In this talk, I will discuss the neutron-capture element
signature in ultra-faint dwarf galaxies, which chemically distinguish these
systems from most halo stars, globular clusters, and larger dwarf galaxies.
The stars in these tiny galaxies display highly stochastic neutron-capture
element enrichment, with a neutron-capture element floor of unknown origin.
I will also show some early evidence that r-process elements provide a
means to link ultra-faint dwarf galaxies to the Milky Way's old stellar
halo.
Affiliation
Carnegie Observatories
Talk/Poster | Talk |
---|