A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31

Details A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31 A Keck/Deimos Survey of Red Giant Branch Stars in the Outskirts of M31

2004-08-03

arxiv.org/abs/astro-ph/0408058v1

Astronomy and Astrophysics

Astrophysics

5 pages, 3 figures, to appear in the proceedings of the ESO Workshop "Planetary Nebulae beyond the Milky Way", held ESO Garchi

Scientific paper

We are using the DEIMOS multi-object spectrograph on the Keck II 10m telescope to conduct a spectroscopic survey of red giant branch stars in the outskirts of M31. To date, velocities have been obtained for most of the major substructures in the halo as well as at several positions in the far outer disk and inner halo. First results concerning the giant stellar stream and major axis substructures are presented here.

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