which can be accessed by net-charge correlations, is the subject of this paper.

String fragmentation models [@lund] describe two-particle correlations on pseudorapidity and azimuth $(\eta,\phi)$ in high-energy p-p collisions in terms of local conservation of transverse momentum and net charge leading to canonical suppression of event-wise net-momentum and net-charge fluctuations. The nature of the corresponding process in A-A collisions remains an open question. Some change should be expected in the correlation structure as the medium evolves from that produced in very peripheral collisions (approximating minimum-bias proton-proton collisions) to that in central heavy-ion collisions. Predictions have been made of dramatic suppression of net-charge [*fluctuations*]{} in central A-A collisions as a signal of quark-gluon plasma formation [@jeon]. The question arises what detailed net-charge [*correlation structure*]{} would correspond to such predictions, and what structure is actually present in heavy-ion collisions.

In this Letter we report the first measurements in heavy-ion collisions of the centrality dependence of two-particle [*charge-dependent*]{} (net-charge) correlations on angular subspace $(\eta,\phi)$, where charge-dependent here refers to the difference between correlations for like-charge-sign pairs and unlike-sign pairs. This analysis is based on Au-Au collisions at $\sqrt{s_{NN}} = 130$ GeV obtained with the STAR detector at the Relativistic Heavy Ion Collider (RHIC). 