The Prevalence of the $\alpha$-bimodality: First JWST $\alpha$-abundance Results in M31

David L. Nidever, Karoline Gilbert, Erik Tollerud +8

We present initial results from our JWST NIRSpec program to study the $\alpha$-abundances in the M31 disk. The Milky Way has two chemically-defined disks, the low-$\alpha$ and high-$\alpha$ disks…