  In this work, a hydrodynamic study of the di-hadron azimuthal correlations
for the Au+Au collisions at 200 GeV is carried out. The correlations are
evaluated using the ZYAM method for the centrality windows as well as the
transverse momentum range in accordance with the existing data. Event-plane
dependence of the correlation is obtained after the subtraction of
contributions from the most dominant harmonic coefficients. In particular, the
contribution from the triangular flow, $v_3$, is removed from the proper
correlations following the procedure implemented by the STAR collaboration. The
resultant structure observed in the correlations was sometimes attributed to
the mini-jet dynamics, but the present calculations show that a pure
hydrodynamic model gives a reasonable agreement with the main feature of the
published data. A brief discussion on the physical content of the present
findings is presented.
