2003MNRAS.340..269B

We present continuum observations of the edge-on spiral galaxy NGC 5775 at 617 MHz with the Giant Metrewave Radio Telescope (GMRT) and at 850 µm with the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT). We report the detection of dust at high latitudes, extending to about 5 kpc from the disc of the galaxy, and spurs of non-thermal radio emission. The 617 MHz and 850 µm distributions are compared with one another and we find a strong correlation between metre wavelength radio emission and submillimetre emission in the disc and at high latitudes. This suggests that there may be a more fundamental relationship between cold dust and synchrotron radiation other than the link via star formation.