Centrality dependence of number and transverse momentum correlations in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV

Recent measurements at RHIC have revealed a ridge-like structure in the triggered and untriggered two-particle correlations in Au+Au collisions. A significant interest lies in studying diverse correlation functions which provide better understanding and sensitivity to various reaction mechanisms. In this work we present charged dependent measurements of two-particle number density, $R_{2}(\Delta\eta,\Delta\phi)$ correlation function, transverse momentum $R_{2}^{\Delta p_{T_1} \Delta p_{T_2}}(\Delta\eta,\Delta\phi)$ correlation function and a hybrid observable ${\it C}(\Delta\eta,\Delta\phi)$, designed to provide new and additional insight in the collision dynamics of Au + Au interactions. These observables are constructed as a function of collision centrality for particles in the range $|\eta|<1.0$ and $0.2