SDSS J124058.03-015919.2: A new AM CVn star with a 37-minute orbital period

G. H. A. Roelofs, P. J. Groot, T. R. Marsh +3

We present high time resolution VLT spectroscopy of SDSS J124058.03-015919.2, a new helium-transferring binary star identified in the Sloan Digital Sky Survey. We measure an orbita…