The figures in this appendix display an assortment of the data products from the CHANG-ES project, described below. With the exception of the field panel (j) in the red frame, all panels are displayed in the exact same angular field of view, for better comparison. The ’apparent B-vectors’ in panels (d), (e) and (f) below, are in reality E-vectors rotated by 90 degrees (see Sec. 3.3.3).
a) C-band Stokes I intensity map with a Briggs robust 0 weighting. The I contours are overlaid for clarity, at 3, 6, 12, 24, 48, 96, 192 times the rms noise of the map (rms values are listed Table 4).
b) C-band Stokes I intensity map with a uv-tapering applied onto the robust 0 weighting, yielding a beam approximately twice the size of that of the robust 0 weighting in C-band, overlaid with its contours at 3, 6, 12, 24, 48, 96, 192 times the rms noise. This map does not exist for galaxies NGC 4438 and NGC 4845.
c) L-band Stokes I intensity map, with contours at 3, 6, 12, 24, 48, 96, 192 times the L rms noise (see Table 5 for rms values).
d) C-band Stokes I contours with uv-tapered weighting at 3 times the rms noise, with apparent B-vectors at the same weighting , overlaid on an optical image. The optical images were created using a combination of Sloan Digital Sky Survey (SDSS) g,r,i bands or Digitized Sky Survey 2 (DSS2) blue red and infrared bands, for the galaxies not available in SDSS.
e) C-band polarization map with apparent B-vectors and Stokes I contours at 3σ.
f) L-band polarization map with apparent B-vectors and Stokes I contours at 3σ.
g) Stokes I intensity map with 3 weightings merged (images a, b and c above). Image a, i.e. C-band with robust 0 weighting, is shown in dark blue, image (b), i.e. C-band with uv-tapering, is shown in green, and image c, L-band robust 0 weighting, is shown in white. Except for six galaxies for which no satisfactory uv-tapered L-band image has been obtained (see Table 5 the background has been masked out using the L-band uv-tapered map (this map is not shown separately).
h) C-band spectral index map. Spectral indices have been cut off where formal errors are larger than 1.0, and then smoothed/averaged to the size of the beam (Section 3.4). The colour bar of panel i) also applies to this panel.
i) L-band spectral index map. Spectral indices have been cut off where formal errors are larger than 1.0, and then smoothed/averaged to the size of the beam (Section 3.4).
j) The L-band robust 0 surrounding environment. The red frame indicates that this panel is displayed in a different field of view than the other panels.
k) Spectral index uncertainty map of (h) - formal error data. See Section 3.4.3 for more information on the uncertainties. Note that although the true error is higher than what is displayed in this map, the map gives an indication of which regions are to be treated with caution. The colour bar of panel (l) also applies to this panel.
l) Spectral index uncertainty map of (h) - formal error data. See caption of panel (k) and Section 3.4.3 for more information on the uncertainties.