Table 2
Fitting results for the colour excess ratio 
and the intercept 
.
| Band |  |
⟨σα⟩ |  |
⟨σβ⟩ |  |
 |
 |
 |
σβ,east |  |
σβ,west | Δβ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (mag) | (mag) | (%) | ||||||||||
| z | –0.306 | 0.009 | –1.371 | 0.007 | –1.560a | 4.56 | 0.29 | –1.372 | 0.009 | –1.334 | 0.012 | 2.8 ± 1.1 |
| y | –0.410 | 0.008 | –0.925 | 0.007 | –0.920a | 3.89 | 0.24 | –0.930 | 0.009 | –0.903 | 0.011 | 3.0 ± 1.6 |
| J | – | – | 0.000 | – | – | 2.50 | 0.15 | 0.000 | – | 0.000 | – | – |
| H | 0.094 | 0.002 | 0.636 | 0.002 | 0.640b | 1.55 | 0.10 | 0.643 | 0.002 | 0.624 | 0.003 | –3.0 ± 0.6 |
| KS | – | – | 1.000 | – | – | 1.00 | – | 1.000 | – | 1.000 | – | – |
| I1 | –0.070 | 0.014 | 1.239 | 0.008 | 1.243c | 0.64 | 0.09 | 1.224 | 0.010 | 1.264 | 0.012 | 3.2 ± 1.2 |
| I2 | –0.096 | 0.023 | 1.297 | 0.012 | 1.307c | 0.56 | 0.09 | 1.281 | 0.016 | 1.321 | 0.019 | 3.0 ± 1.8 |
| I3 | –0.059 | 0.023 | 1.335 | 0.012 | 1.331c | 0.50 | 0.09 | 1.323 | 0.015 | 1.358 | 0.021 | 2.6 ± 1.9 |
| I4 | –0.052 | 0.021 | 1.324 | 0.011 | 1.329c | 0.51 | 0.09 | 1.329 | 0.013 | 1.319 | 0.024 | –0.8 ± 2.1 |
| MS | –0.172 | 0.089 | 1.364 | 0.044 | 1.370c | 0.45 | 0.11 | 1.376 | 0.069 | 1.342 | 0.059 | –2.5 ± 6.8 |
Notes. Due to this definition, the values for J
and KS are fixed. Tabulated are the average values for the cloud (Sect. 4.2), results from the literature (
) including the reference, as well as the fitting results when splitting the survey region at
l = 210° into east and west parts (Sect. 4.3). Also the relative difference in 
between eastand west regions (Δβ) is given. Thetotal extinction ratios relative to the KS
band and the associated errors have been calculated using Eq. (23) and adopting
mag.
References. (a)Schlafly & Finkbeiner (2011); (b)Indebetouw et al. (2005); (c)Flaherty et al. (2007).
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