The Detection of [O III]$\lambda$4363 in a Lensed, Dwarf Galaxy at $z$ = 2.59: Testing Metallicity Indicators and Scaling Relations at High Redshift and Low Mass

Timothy Gburek, Brian Siana, Anahita Alavi +6

We present Keck/MOSFIRE and Keck/LRIS spectroscopy of A1689-217, a lensed (magnification $\sim 7.9$), star-forming (SFR $\sim$ 16 ${\mathrm{M}}_{\odot }\mathrm{y}{\mathrm{r}}^{-1}$), dwarf (log($M_\ast/M_\odot…