Emission-line stars in M31 from the SPLASH and PHAT surveys

Laura J. Prichard, Puragra Guhathakurta, Katherine M. Hamren +7

We present a sample of 224 stars that emit H$\alpha$ (H$\alpha$ stars) in the Andromeda galaxy (M31). The stars were selected from $\sim$ 5000 spectra, collected as part of the Spectroscopic…