Table 1:

Parameters of the total intensity and polarization images.

	Bandwidth	1.25 arcsec			5.5 arcsec
(GHz)	(MHz)	(mJy/beam)	(mJy/beam)		(mJy/beam)	(mJy/beam)
1.365	12.5	0.037	0.030	0.24	0.018	0.014	0.26
1.445	12.5	0.021	0.020	0.25	0.020	0.011	0.27
1.465	12.5	0.048	0.049	0.25	0.019	0.013	0.25
1.485	12.5	0.035	0.027	0.21	0.014	0.010	0.26
4.685	50.0	0.017	0.017	0.32	0.017	0.013	0.37
4.985	50.0	0.018	0.017	0.33	0.017	0.016	0.39
8.385	100.0	0.014	0.011	0.31	0.015	0.013	-

Notes. Column 1: observation frequency. Column 2: bandwidth (note that the images at 8.385 GHz are derived from the average of two frequency channels, both with bandwidths of 50 MHz, centred on 8.285 and 8.485 GHz); Cols. 3, 4 : rms noise levels in total intensity ( ) and linear polarization ( , the average of and ) at 1.25 arcsec FWHM resolution; Col. 5: mean degree of polarization at 1.25 arcsec; Cols. 6, 7: rms noise levels for the 5.5 arcsec images; Col. 8: mean degree of polarization at 5.5 arcsec. We estimate that the uncertainty in the degree of polarization, which is dominated by systematic deconvolution errors on the I images, is 0.02 at each frequency.