Table 2: Calibrator star parameters, from the MIDI calibrator catalogue (Van Boekel et al. 2005).
Calibrator Spectral Fluxi Uniform disk
  type (Jy) diameter (mas)
HD 139 997 K5 III 14.5 3.46 $\pm$ 0.38
HD 152 786 K3 III 82.2 7.21 $\pm$ 0.21
HD 165 135 K0 III 16.3 3.33 $\pm$ 0.05
HD 168 454 K3 IIIa 43.7 5.78 $\pm$ 0.15

i IRAS 12.5 $\mu $m flux.


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Article Contents
1 Introduction
2 Observations
3 The SIMECA code and the envelope parameters used for the modeling of alpha Ara
4 Results
5 Discussion
6 Conclusion
References
List of tables
List of figures