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The Vast Polar Structure of the Milky Way Attains New Members
Marcel S. Pawlowski, Pavel Kroupa
The satellite galaxies of the Milky Way (MW) align with and preferentially orbit in a vast polar structure (VPOS), which also contains globular clusters, stellar and gaseous stream…
Co-orbiting planes of sub-halos are similarly unlikely around paired and isolated hosts
Marcel S. Pawlowski, Stacy S. McGaugh
Sub-halos in dark-matter-based cosmological simulations tend to be distributed approximately isotropically around their host. The existence of highly flattened, co-orbiting planes…
Co-orbiting satellite galaxy structures are still in conflict with the distribution of primordial dwarf galaxies
Marcel S. Pawlowski, Benoit Famaey, Helmut Jerjen +11
Both major galaxies in the Local Group host planar distributions of co-orbiting satellite galaxies, the Vast Polar Structure (VPOS) of the Milky Way and the Great Plane of Andromed…
Reproducing properties of MW dSphs as descendants of DM-free TDGs
Yanbin Yang, Francois Hammer, Sylvain Fouquet +4
The Milky Way (MW) dwarf spheroidal (dSph) satellites are known to be the most dark-matter (DM) dominated galaxies with estimates of dark to baryonic matter reaching even above one…
Perseus I and the NGC 3109 association in the context of the Local Group dwarf galaxy structures
Marcel S. Pawlowski, Stacy S. McGaugh
The recently discovered dwarf galaxy Perseus I appears to be associated with the dominant plane of non-satellite galaxies in the Local Group (LG). We predict its velocity dispersio…