The Dustiest Galactic S Stars: Mid-Infrared Spectra from SOFIA/FORCAST

Kathleen E. Kraemer, G. C. Sloan, Ramses M. Ramirez

We present spectra of 12 of the reddest, and hence dustiest, S stars in the Milky Way, observed with the FORCAST grisms on SOFIA. S stars are asymptotic giant branch (AGB) stars wi…