Measurements of Non-photonic Electron Production and Azimuthal Anisotropy in $\sqrt{s_{NN}}=39$, 62.4 and 200 GeV \auau\ Collisions from STAR at RHIC

During RHIC 2010 run, STAR has collected a large amount of minimum-bias, central and high $p_T$ trigger data in Au+Au collisions at $\sqrt{s_{NN}} = 39$, 62.4 and 200 GeV with detector configuration for minimum photonic conversion background. In this article we report on a new high precision measurement of non-photonic electron mid-rapidity invariant yield, improved nuclear modification factor and $v_2$ in Au+Au collisions at $\sqrt{s_{NN}} = 200$GeV\mathrm{.}Wealsopresentmeasurementsofmid-rapidityinvariantyieldat$\sqrt{s_{NN}} = 62.4$and$v_{2}$at$\sqrt{s_{NN}} = 39$ and 62.4 GeV.