Shearing and shaping planes of dwarfs in the Local Universe

Abstract: Dwarf galaxies are the smallest yet most abundant cosmological objects in existence. Yet owing to their low luminosity, they can only be seen in the immediate neighborhood of the Milky Way, a region known as the Local Group. Most of these galaxies have only been recently found and since their discovery have presented the paradigm of structure/galaxy formation (known as the LCDM model) with a number of intriguing challenges. Specifically, many dwarf galaxies appear to cluster on vast thin planes, an as yet unresolved problem for the model. I will present some ideas to explain the origin of this peculiar set up within the LCDM model, focusing on using velocity field surveys to reconstruction the Large Scale Structure around the Local Group. Finally, I will report the first observations of a similar set-up around a galaxy exterior to the Local Group.