The Hyades tidal tails revealed by Gaia DR2 [SSA]

http://arxiv.org/abs/1811.03845


Within a 200 pc sphere around the Sun we search for the Hyades tidal tails in the Gaia DR2 dataset. We use a modified convergent point method to search for stars with space velocities close to the space velocity of the Hyades cluster. We find a clear indication for the existence of the Hyades tidal tails, a preceding tail extending up to 170 pc from the centre of the Hyades with 292 stars (36 contaminants), and a following tail up to 70 pc with 237 stars (32 contaminants). A comparison with an N-body model of the cluster and its tails shows remarkably good coincidence. Five white dwarfs are found in the tails.

Read this paper on arXiv…

S. Röser, E. Schilbach and B. Goldman
Mon, 12 Nov 18
39/68

Comments: 4 pages, 4 figures