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Stars with fast Galactic rotation observed in Gaia TGAS: a signature driven by the Perseus arm?
Jason A. S. Hunt, Daisuke Kawata, Giacomo Monari +3
We report on the detection of a small overdensity of stars in velocity space with systematically higher Galactocentric rotation velocity than the Sun by about 20 km s in the…
Staying away from the bar: the local dynamical signature of slow and fast bars in the Milky Way
Giacomo Monari, Benoit Famaey, Arnaud Siebert +3
Both the three-dimensional density of red clump giants and the gas kinematics in the inner Galaxy indicate that the pattern speed of the Galactic bar could be much lower than previ…
Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties
Gaia Collaboration, A. G. A. Brown, A. Vallenari +5
At about 1000 days after the launch of Gaia we present the first Gaia data release, Gaia DR1, consisting of astrometry and photometry for over 1 billion sources brighter than magni…
The Gaia mission
Gaia Collaboration
Gaia is a cornerstone mission in the science programme of the European Space Agency (ESA). The spacecraft construction was approved in 2006, following a study in which the original…
The Radial Velocity Experiment (RAVE): Fifth Data Release
Andrea Kunder, Georges Kordopatis, Matthias Steinmetz +51
Data Release 5 (DR5) of the Radial Velocity Experiment (RAVE) is the fifth data release from a magnitude-limited (9< I < 12) survey of stars randomly selected in the southern hemis…