Browsing Chapman, Scott by Author "Ludlow, A."

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  • Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first Local Group infall 

    Chapman, S. C., J. Penarrubia, R. Ibata, A. McConnachie, et al. 2007. "Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first Local Group infall." The Astrophysical Journal 662(2): 79-L82
    We present spectroscopic observations of the AndXII dwarf spheroidal galaxy using DEIMOS/Keck-II, showing it to be moving rapidly through the Local Group (-556 km/s heliocentric velocity, -281 km/s relative to Andromeda ...