The clean image for the continuum emission of J0439+1634. The image is produced using the CASA task tclean using Briggs weighting (with robust = 0.5). The beam size is ﹩0\mathop{.}\limits{^{\prime\prime} }078\times 0\mathop{.}\limits{^{\prime\prime} }040﹩, shown as the white ellipse at the lower left corner. The 1σ sensitivity is 0.02 mJy beam⁻¹. The two bright blobs are the lensed images of the quasar host galaxy’s central region, and the diffused emission shows the lensed arc of the quasar host galaxy.