The globular cluster system of the milky way: Accretion in a cosmological context
We examine the significance of a planar arrangement in the spatial distribution of the Milky Way (MW) globular clusters (GCs). We find that, when separated on the basis of horizontal branch morphology and metallicity, the outermost canonical young halo (YH) GC sample (at galactocentric radii in excess of 10kpc) exhibits an anisotropic distribution that may be equated to a plane (24 ± 4)kpc thick (rms) and inclined at 8° ± 5° to the polar axis of the MW disk. To quantify the significance of this...[Show more]
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|Source:||Astrophysical Journal, The|
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