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Table 1.

Properties of the sample.

Name Hubble stage Distance R25 Scale Contribution Inclination 12 + log(O/H)
T Mpc arcmin pc/pixel to the sample (a) deg at 0.4 × R25
NGC 628 (M74) 5.2 10.1 5.0 590 0.10 31 8.56
NGC 925 7.0 9.2 5.4 540 0.06 67 8.29
NGC 2403 6.0 3.2 10 190 0.08 64 8.29
NGC 3521 4.0 12.4 4.2 720 0.05 64 8.63
NGC 4736 (M94) 2.3 4.4 3.9 260 0.05 34 8.55
NGC 5055 (M63) 4.0 9.0 5.9 520 0.07 57 8.69
NGC 5194 (M51) (b) 4.0 8.6 6.9 500 0.09 33 8.72
NGC 5457 (M101) 5.9 7.1 12 410 0.37 22 8.43
NGC 6946 5.9 6.7 5.7 390 0.13 35 8.59

Notes. Hubble stage, distance, B-band optical radius R25, and inclination are from the tabulated values of Clark et al. (2018) and Mosenkov et al. (2019), available from the DustPedia database. Characteristic metallicity at 0.4 × R25 have been derived from Pilyugin et al. (2014).

(a)

Ratio between the number of pixels analyzed for each galaxy and the total number of pixels in the sample.

(b)

We excluded the companion NGC 5195 by cutting all pixels with δ ≥ 47.24°.

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