Erratum for: A&A, 561, A26 (2014), https://doi.org/10.1051/0004-6361/201322042

The original article contains three typos, which are corrected below.

Section 4.2: a factor $\frac{1}{d^2}$ is missing in the expression (2) of the visibility. The correct expression for the visibility to consider is: $$\begin{array}{ll}{V}_{\lambda ,\text{disk}}(B_{\text{p}}(i,\theta ))=\hfill & \frac{1}{F_{\lambda }(0)}\frac{1}{d^2}{\displaystyle {\int }_{r_{\text{in}}}^{r_{\text{out}}}{B}_{\lambda }}(T_r){ϵ}_{\tau }{J}_0\hfill \\ \hfill & \left[\frac{2\pi }{\lambda }{B}_{\text{p}}(i,\theta )\frac{r}{d}\right]2\pi r\text{d}r.\hfill \end{array}$$(2)

Section 4.2.1: a modulus symbol is missing at the numerator of the expression (6) of the visibility. The correct expression for the visibility to consider is: $$V_{\text{tot},\text{1}}=\frac{\left|F_{*}(\lambda )+F_{\lambda ,\text{disk}}(i)V_{\lambda ,\text{disk}}(B_{\text{p}}(i,\theta ))\right|}{F_{*}(\lambda )+F_{\lambda ,\text{disk}}(i)}.$$(6)

Section 4.2.2: a modulus symbol is missing at the numerator of the expression (11) of the visibility. The correct expression for the visibility to consider is: $$\begin{array}{l}{V}_{\text{tot},\text{2}}=\\ \frac{\left|F_{*}(\lambda )+F_{\lambda ,{\text{disk}}_{\text{h}}}(i)V_{\lambda ,{\text{disk}}_{\text{h}}}(B_{\text{p}}(i,\theta ))+F_{\lambda ,\text{disk}}(i)V_{\lambda ,\text{disk}}(B_{\text{p}}(i,\theta ))\right|}{F_{*}(\lambda )+F_{\lambda ,{\text{disk}}_{\text{h}}}(i)+F_{\lambda ,\text{disk}}(i)}.\end{array}$$(11)

All the visibility calculations presented in the original article were based on the correct expressions above.

© A. Matter et al. 2019