Paper:	Non-LTE Calculation for the Decretion Disk
Volume:	361, Active OB-Stars: Laboratories For Stellar and Circumstellar Physics
Page:	249
Authors:	Iwamatsu, H.; Hirata, R.
Abstract:	The non-LTE state of the isothermal steady-state decretion disk around the Be star was calculated by the iteration method. The on-the-spot approximation is adopted for the line transfer, and the continuous radiation is determined through the numerical integration. The decretion disk can reproduce the reasonable V magnitude increase for the mass loss rate less than 10−10MSolaryr−1 and the observed characteristics of the Balmer line profiles. While, the calculated emission equivalent widths are too small, compared to the observation of π Aqr. Our assumption of Td = 2/3Teff is valid in the case of the optically thin disk, while the disk temperature becomes lower in the optically thick disk.

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