Kavli Affiliate: Andrey Kravtsov
| First 5 Authors: Khanh Pham, Andrey Kravtsov, Viraj Manwadkar, ,
| Summary:
We examine the spatial distribution and orbital pole correlations of
satellites in a suite of zoom-in high-resolution dissipationless simulations of
Miky Way (MW) sized haloes. We use the measured distribution to estimate the
incidence of satellite configurations as flattened and as correlated in their
orbital pole distribution as satellite system of the Milky Way. We confirm that
this incidence is sensitive to the radial distribution of subhaloes and thereby
to the processes that affect it, such as artificial disruption due to numerical
effects and disruption due to the central disk. Controlling for the resolution
effects and bracketing the effects of the disk, we find that the MW satellite
system is somewhat unusual (at the $approx 2-3sigma$ level) but is
statistically consistent with the $Lambda$CDM model, in general agreement with
results and conclusions of other recent studies.
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