The first systematic census identifies 361 RR Lyrae stars in 56 Milky Way stellar streams, with new detections in 31 streams and distance gradients in five.
We then fitted a gamma distribution to the resulting distribution of tangential velocity dispersions of thepopulationof streams, for which we obtainedα=1.97507 andβ=0.06927
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Systematic census of RR Lyrae stars in Milky Way stellar streams
The first systematic census identifies 361 RR Lyrae stars in 56 Milky Way stellar streams, with new detections in 31 streams and distance gradients in five.