Third Harmonic Flow of Charged Particles in Au+Au Collisions at $\sqrt{s_{NN}}=200$ GeV

In this proceedings, we report measurements of the third harmonic coefficient of the azimuthal anisotropy, $v_3$, known as triangular flow. The analysis is for charged particles near midrapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, based on data from the STAR experiment at the Relativistic Heavy Ion Collider. Triangular flow as a function of centrality, pseudorapidity and transverse momentum are reported using various methods, including a study of the signal for particle pairs as a function of their pseudorapidity separation. Results are compared with other experiments and model predictions.