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The Faintest Dwarf Galaxies
Simon, Joshua D.
The lowest luminosity (L < 105L⊙) Milky Way satellite galaxies represent the extreme lower limit of the galaxy luminosity function. These ultra-faint dwarfs are the oldest, most dark matter-dominated, most metal-poor, and least chemically evolved stellar systems known. They therefore provide unique windows into the formati…
Accuracy and Precision of Industrial Stellar Abundances
Jofré, Paula; Heiter, Ulrike; Soubiran, Caroline
There has been an incredibly large investment in obtaining high-resolution stellar spectra for determining chemical abundances of stars. This information is crucial to answer fundamental questions in astronomy by constraining the formation and evolution scenarios of the Milky Way as well as the stars and planets residing in it. We have just entere…