Narrow Results

We present a method of measuring the elliptic flow (v₂) of nonphotonic electrons from heavy flavor quark decays using the STAR detector at RHIC in Au + Au collisions at . Inclusive electrons are identified in the p_T range 0.5–4 GeV/c at mid-rapidity -1 < η < 0 by the STAR time projection chamber (TPC) and time-of-flight detector. Photonic e⁺e^- pairs with characteristic low invariant mass are reconstructed in the TPC and their v₂ is measured using the standard event plane method by subtracting the combinatorial background in the dN/dΔϕ distributions in each p_T bin. The nonphotonic electron v₂ and its propagated error can be derived from the inclusive and photonic electron v₂. We estimate the necessary statistics and errors of nonphotonic electron v₂ for a more recent RHIC run.