Table 6
Exponential scale-lengths in arcminutes for dust, gas and star mass surface-density profiles and SFR surface-density profiles in the same range in radius used for fitting of surface-brightness profiles. Pearson’s correlation coefficients of each exponential fit are listed.
| Galaxy | hΣdust | hΣH2 | hΣtot gas | hΣstar IRAC | hΣstar SDSS | hΣSFR |
| [′] | [′] | [′] | [′] | or | [′] | |
| hΣstar SINGS | ||||||
| [′] | ||||||
| (rPearson) | (rPearson) | (rPearson) | (rPearson) | (rPearson) | (rPearson) | |
|
|
||||||
| NGC 5457 (M 101) | 3.19 ± 0.06 | 1.18 ± 0.03 | 5.56 ± 0.85 | 2.09 ± 0.13 | 1.93 ± 0.11 | 2.59 ± 0.08 |
| (−0.94) | (−0.96) | (−0.74) | (−0.95) | (−0.95) | (−0.95) | |
| NGC 3031 (M 81) | 6.20 ± 0.47 | ** | ***** | 2.64 ± 0.21 | 2.51 ± 0.25 | 2.86 ± 0.24 |
| (–0.96) | – | – | (−0.98) | (−0.97) | (−0.98) | |
| NGC 2403 | 6.04 ± 0.51 | *** | 7.51 ± 0.34 | 2.06 ± 0.18 | 2.46 ± 0.34 | 2.22 ± 0.09 |
| (−0.90) | – | (−0.94) | (−0.92) | (−0.91) | (−0.86) | |
| IC 342 | 6.36 ± 0.13 | * | * | 3.77 ± 0.33 | **** | 3.0 ± 0.08 |
| (-0.98) | – | – | (−0.99) | – | (−0.98) | |
| NGC 300 | * | **** | **** | 6.16 ± 0.92 | **** | 3.50 ± 0.21 |
| – | – | – | (−0.95) | – | (−0.92) | |
| NGC 5194 (M 51) | 1.41 ± 0.06 | 0.75 ± 0.02 | 1.55 ± 0.08 | 1.27 ± 0.05 | 1.24 ± 0.06 | 1.04 ± 0.06 |
| (−0.98) | (−0.97) | (−0.98) | (−0.97) | (−0.77) | (−0.96) | |
| NGC 5236 (M 83) | 1.64 ± 0.03 | **** | **** | 1.66 ± 0.13 | **** | 1.04 ± 0.02 |
| (−0.99) | – | – | (−0.96) | – | (−0.92) | |
| NGC 1365 | 1.55 ± 0.06 | **** | **** | 0.97 ± 0.16 | **** | 0.92 ± 0.03 |
| (−0.93) | – | – | (−0.97) | – | (−0.95) | |
| NGC 5055 (M 63) | 1.78 ± 0.04 | 1.19 ± 0.02 | 2.60 ± 0.07 | 1.24 ± 0.06 | 1.27 ± 0.08 | 1.20 ± 0.02 |
| (−0.97) | (−0.98) | (−0.97) | (−0.89) | (−0.86) | (0.94) | |
| NGC 6946 | 2.83 ± 0.22 | 1.11 ± 2.15 × 10-3 | 2.81 ± 0.04 | 1.47 ± 0.09 | **** | 1.73 ± 0.11 |
| (−0.99) | (−0.95) | (−1.00) | (−0.95) | – | (−0.97) | |
| NGC 925 | 3.30 ± 0.19 | 1.33 ± 0.18 | * | 1.46 ± 0.12 | **** | 2.34 ± 0.18 |
| (−0.98) | (−0.87) | – | (−0.93) | – | (−0.93) | |
| NGC 1097 | 2.94 ± 0.15 | * | **** | 1.13 ± 0.12 | 0.93 ± 0.10 | 1.00 ± 0.02 |
| (−0.87) | – | – | (−0.85) | (−0.81) | (−0.87) | |
| NGC 7793 | 2.75 ± 0.14 | **** | **** | 1.40 ± 0.08 | **** | 1.43 ± 0.06 |
| (−1.00) | – | – | (−0.97) | – | (−0.98) | |
| NGC 628 (M 74) | 2.20 ± 0.09 | 0.75 ±0.02 | 1.29 ± 0.08 | 1.04 ± 0.05 | 0.91 ± 0.05 | 1.24 ± 0.05 |
| (−0.99) | (−0.92) | (−0.95) | (−0.94) | (−0.88) | (−0.99) | |
| NGC 3621 | 1.57 ± 0.04 | **** | **** | 0.95 ± 0.06 | **** | 0.98 ± 0.03 |
| (−0.97) | – | – | (−0.90) | – | (−0.91) | |
| NGC 4725 | 1.78 ± 0.09 | 0.51 ± 0.06 | 1.56 ± 0.33 | 1.11 ± 0.09 | 1.23 ± 0.12 | 0.84 ± 0.05 |
| (−0.99) | (−0.93) | (−0.98) | (−0.95) | (−0.94) | (−0.97) | |
| NGC 3521 | 1.70 ± 0.03 | 0.87 ± 0.03 | 1.69 ± 0.03 | 1.22 ± 0.34 | 1.33 ± 0.46 | 1.01 ± 0.03 |
| (−0.93) | (−0.99) | (−0.95) | (−0.86) | (−0.84) | (−0.88) | |
| NGC 4736 (M 94) | 1.11 ± 0.03 | 0.47 ± 0.02 | 1.10 ± 0.04 | 0.76 ± 0.57 | 0.92 ± 0.08 | 0.61 ± 0.17 |
| (−0.90) | (−0.93) | (−0.95) | (−0.86) | (−0.92) | (−0.77) | |
Notes. * Curve not fitted by an exponential function; ** 12CO(1–0) emission line, used to derive H2 content, has been observed but not detected; *** too small coverage in radius; **** profile not available; ***** since 12CO(1–0) emission line has not been detected the total profile has not been derived.
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