CIRCUMSTELLAR DUST AND CIRCUMSTELLAR EXTINCTION CURVES

被引:4
|
作者
VOSHCHINNIKOV, NV [1 ]
MOLSTER, FJ [1 ]
THE, PS [1 ]
机构
[1] UNIV AMSTERDAM,ASTRON INST ANTON PANNEKOEK,AMSTERDAM,NETHERLANDS
关键词
CIRCUMSTELLAR MATTER; STARS; PRE-MAIN-SEQUENCE; DUST; EXTINCTION;
D O I
10.1007/BF00667849
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have calculated the circumstellar extinction curves produced by dust grains which absorb and scatter the stellar radiation in the shells of pre-main-sequence stars. A Monte Carlo method was used to model the radiative transfer in non-spherical shells. The dependence on the particle size distribution and the dust shell parameters has been examined. The application of the theoretical results to explain the extinction and polarization of the Herbig Be star ED 45677 shows that the dust shell is not disk-like and that very small grains are absent in it.
引用
收藏
页码:223 / 226
页数:4
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