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Table A.2.

Influence of the ZP systematic errors on the four-spiral-arm model using the CMD H vs. J − H.

J + ΔZP J − ΔZP

d (pc) AH (mag) d (pc) AH (mag)
1544 ± 175 0.46 ± 0.08 1645 ± 175 0.35 ± 0.08
2488 ± 212 0.78 ± 0.08 2631 ± 221 0.71 ± 0.08
3691 ± 240 1.70 ± 0.08 3688 ± 294 1.62 ± 0.12
4538 ± 188 2.30 ± 0.08 4608 ± 250 2.30 ± 0.08

Sback = 0.77 ± 0.20 Sback = 0.84 ± 0.27

H + ΔZP H − ΔZP
d (pc) AH (mag) d (pc) AH (mag)

1647 ± 175 0.35 ± 0.08 1536 ± 175 0.47 ± 0.08
2654 ± 223 0.71 ± 0.08 2444 ± 175 0.78 ± 0.08
3686 ± 303 1.60 ± 0.11 3712 ± 239 1.70 ± 0.08
4603 ± 239 2.30 ± 0.08 4507 ± 175 2.30 ± 0.08

Sback = 0.84 ± 0.27 Sback = 0.75 ± 0.16

Notes. ΔZP correspond to 0.04 mag in all the cases as indicated in Nogueras-Lara et al. (2019a). The parameters are analogous to those in Table 1.

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