2005ApJ...621..393W

We report on the precise localization of the low-mass X-ray binaries X1624-490 and X1702-429 with the Chandra HRC-I. We determine the best positions to be 16^h28^m02{fs}825,-49°11'54".61 and 17^h06^m15{fs}314,-43°02'08".69 (J2000.0) for X1624-490 and X1702-429, respectively, with the nominal Chandra positional uncertainty of 0".6. We also obtained deep IR observations of the fields of these sources in an effort to identify the IR counterparts. A single, faint (K_s=18.3±0.1) source is visible inside the Chandra error circle of X1624-490, and we propose this source as its IR counterpart. For X1702-429, a K_s=16.5±0.07 source is visible at the edge of the Chandra error circle. The brightness of both counterpart candidates is comparable to that of other low-mass X-ray binary IR counterparts when corrected for extinction and distance.