RXCJ2359.3-6042 shown in the DSS optical image overlaid with the XMM-Newton X-ray contours in the [0.5–2] keV band from the same data as in Fig. 2. The contours are obtained from a background subtracted image where the first contour traces 3 × 10^-5 counts s^-1 pix^-1. The flux of the contours increases by steps of 1.5 subsequently. The compact component with high X-ray emission is centred at the galaxy at 23^h59^m04.2^s in RA and –60^d36^m34^s in Dec.