All Tables

Table 1: Some basic parameters of the studied objects taken from the General Catalogue of Variable Stars (Kholopov et al. 1998). The distances come from the HIPPARCOS catalogue (Perryman et al. 1997).
Table 2: Journal of interferometric data. K band (FLUOR) data for $\alpha$ Orionis have been presented in Perrin et al. (2003a), for SW Virginis in Perrin (2003), and for R Leonis in Perrin et al. (1999). All L band (TISIS) data were taken from Chagnon et al. (2002). The ISI data points for $\alpha$ Orionis and R Leonis were extracted from Danchi et al. (1994) using the DEXTER online tool at ADS (2003). No exact position angle was given along with the ISI data, therefore we indicated the basic geographic orientation of the baselines used. Where known for the objects, the phase $\Phi$ of the visual variability was indicated.
Table 3: Uniform disk radii $\phi$ in the L and K bands.
Table 4: Mass-loss rate comparison. The values for $v_{\rm o}$ come from Knapp et al. (1998). Data from Danchi et al. were re-evaluated at HIPPARCOS distance (see Table 1) following $\dot{M}\propto v_{\rm o}~ d$ .
Table 5: Parameters adjusted for modelling (see Sect. 3.2). $T_\star$ : stellar temperature; $R_\star$ : stellar radius; $r_{\rm i}, r_{\rm o}$ : inner respectively outer radius of dust shell; $\tau _{11}$ : optical depth of shell at $11~{\rm\mu m}$ . In all cases, an accelerated dust density profile was used.