VLBA S- and X-band dirty images of IRAS 01298−0744. The colour bar on the right of each figure shows the radio-continuum flux densities in mJy beam⁻¹. The noise levels of the two images is 0.22mJy beam⁻¹ and 0.025mJy beam⁻¹, respectively. The beam FWHM of the two images: 2.9 ×1.2 mas at 17°, 8.2 × 2.3 mas at −4°. The contours are for radio-continuum emission with levels of 0.06 mJy beam⁻¹ ×(1, 2) from VLBA L-band observation (see Table 1).