Multi-strange hadron elliptic flow in $\sqrt{s_{NN}}$ = 200 GeV Au + Au collisions at RHIC-STAR

Azimuthal anisotropy, especially for the multi-strange hadrons, is expected to reflect early dynamics in high-energy nuclear collisions. Due to the small hadronic cross section of multi-strange hadrons, their measured elliptic flow ($v_2$) carries information from the early partonic stages. We present the latest results of multi-strange hadron $v_2$ in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV from the STAR experiment at RHIC. The number of quark scaling for multi-strange hadron $v_2$ at intermediate $p_T$ and the possible breaking of mass ordering of the $\phi$ meson $v_2$ at low $p_T$ will be discussed. The data will also be compared with the results from an hybrid model combining ideal-hydrodymanics and hadronic-transport approaches.