JWST NIRSpec Spectral Standards for M, L, and T Dwarfs and Subdwarfs

We present low resolution infrared spectral standards in the 0.76 to 5.0 μm range based on JWST NIRspec Prism data from deep sky surveys. Our standards encompass spectral types M, L, and T and dwarf and subdwarf metallicity classes. The standards extend ground based spectral templates and enable classification of low temperature stellar substellar discoveries from deep JWST NIRSpec data.