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There is long tradition extending more than a century on the identificationof moving groups in the Solar neighborhood. However, with the advent of largekinematic surveys, and especially of the upcoming Gaia data releases there is aneed for more sophisticated and automated substructure finders. We analyze theTGASxRAVE dataset to identify moving groups in the Galactic disk. These groupsof stars may then be used to map dynamical and star formation processes in thevicinity of the Sun. We use the ROCKSTAR algorithm, a "friends-of-friends"-likesubstructure finder in 6D phase-space, and analyze the Hertzsprung-Russelldiagrams of the groups identified. We find 125 moving groups within 300 pc ofthe Sun, containing on average 50 stars, and with 3D velocity dispersionssmaller than 10 km/s. Most of these groups were previously unknown. Ourphotometric analysis allows us to isolate a subsample of 30 statisticallysignificant groups likely composed of stars that were born together.

Scratching the surface with TGAS and RAVE: disk moving groups in the Solar neighborhood