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Table A.4

Coefficients of the fourth-order polynomial fits (Eq. (A.2)) to the variation of each of the six parameters (Mi/Md and ai/Rd) as a function of b/Rd for the modelling of the H I disk based on the three MN-disks model shown in Fig. A.4.

Parameter c0 c1 c2 c3 c4

M1/Md 1.7159 0.3717 0.5278 0.8551 0.2456
M2/Md 1.8429 0.3901 1.9922 1.6618 0.5041
M3/Md 2.5705 0.1235 0.8102 0.2631 0.0957
a1/Rd 1.8188 0.4340 0.0823 0.3249 0.1405
a2/Rd 1.8468 0.5471 0.2117 0.3611 0.1336
a3/Rd 1.5671 0.4595 0.0567 0.1456 0.0719

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