The Vast Polar Structure of the Milky Way Attains New Members
  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 streams. Similar alignments have been discovered around
several other host galaxies. We test whether recently discovered objects in the
MW halo, the satellite galaxy/globular cluster transition object named PSO
J174.0675-10.8774 or Crater and three stellar streams, are part of the VPOS.
Crater is situated close to the VPOS. Incorporating the new object in the
VPOS-plane fit slightly improves the alignment of the plane with other features
such as the Magellanic stream and the average orbital plane of the satellites
co-orbiting in the VPOS. We predict Crater's proper motion by assuming that it,
too, orbits in the VPOS. One of the three streams aligns well with the VPOS.
Surprisingly, it appears to lie in the exact same orbital plane as the Palomar
5 stream and shares its distance, suggesting a direct connection between the
two. The stream also crosses close to the Fornax dwarf galaxy and is oriented
approximately along the galaxy's direction of motion. The two other streams
cannot align closely with the VPOS because they were discovered in the
direction of M31/M33, which is outside of the satellite structure. The VPOS
thus attains two new members. This further emphasizes that the highly
anisotropic and correlated distribution of satellite objects requires an
explanation beyond the suggestion that the MW satellite system is an extreme
statistical outlier of a $\Lambda$CDM sub-halo system.
