Fig. 3.
Total radio emission at 1.57 GHz (VLA + Effelsberg) overlaid on colorscale representation of integrated H I emission from Rand (1994). All data plotted have an angular resolution of 35″ FWHM. Contour levels of the 1.57 GHz emission are at 140 μJy beam−1 × (6, 8, 11, 14, 24, 48, 96, 192, 384). The H I spurs have been labeled 1−4 following Rand (1994). The background radio galaxy to the southwest of NGC 4631 has been marked with a red X-symbol (see Appendix A).
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