Table 2: List of disk and stellar parameters using the $\chi ^2$ minimization in the UV plane.
  disk parameters derived from
  13CO (Paper II) HCO+ (this paper)

$V_{\rm LSR}$ (km s-1)
5.87 5.87 $\pm$ 0.03
Inclination ($^\circ$) 35 21 $\pm$ 16
V sin(i) (km s-1) 1.67 1.49 $\pm$ 0.07
Velocity exponent 0.40 0.40 $\pm 0.04$
Position angle ($^\circ$) -30 -20 $\pm$ 4
Inner radius (AU) 75 110 $\pm$ 16
Outer radius (AU) 1000 >800
Temperature (K) 35 [35]
   exponent q 0.1 [0.1]
Column density (cm-2) 6.2 $\times$ 1022 6.2 $\pm$ $1.2\times 10^{12}$
   exponent 2.5 3.5 $\pm$ 0.5
Line width (km s-1) 0.40 0.23 $\pm$ 0.10
The fixed parameters are taken from Table I of Paper II, as an average of the results from the 13CO. The column density is for H2 (Col. 2) and HCO+ (Col. 3) at 250 AU.

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