Fig. 4
Radial profiles of position angle, ellipticity, and the b4 Fourier coefficient of the ellipses fitted to the isophotes of NGC 4371 in the S4G image, as indicated. The right panels focus on the inner 60′′ (shaded area on the left panels). In the ellipticity profile we indicate features produced by the 10′′ ring, inner disc, bar, and major disc.
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