===== Pattern Speed of the Bar and Spiral Arms =====

=== Who ===

Chemin, Pfenniger, Romero-Gomez, Hunt, Kawata

=== Objectives ===

Recover Bar and Spiral arm pattern speed from Mock data using different methods

=== Methods ===

  * Tremaine-Weinberg Method (Chemin, Romero-Gomez) 

  * Local Tremaine-Weinberg Method (Pfenniger, Chemin, Romero-Gomez)

  * Smoothed Particle Tremaine-Weinberg Method (Kawata)

  * M2M (Hunt)

=== Mock data ===

  * [[:tests:discs:mockHuntGD|GD3 N-body data]]
     * full N-body data
     * M0III tracer data without error
     * M0III tracer data with pre-launch Gaia error

=== Results ===