Stellar density as a function of the distance along the direction of XTE J0929-314 within 2°, obtained using the Gaia DR1 catalogue which includes precise measurements of the stellar parallax. Upper panel: all the stars for which a parallax has been measured. Bottom panel: stars with precise parallax measurements (with d/δd ≥ 3); the solid line on top of the data is the best-fit to the stellar density as a function of the distance using an exponential decay law (see text for more details).