Dust properties of planetary nebulae

被引：0
|
作者：
Kimeswenger, S [1 ]
机构：
[1] Leopold Franzens Univ Innsbruck, Inst Astrophys, A-6020 Innsbruck, Austria
来源：
PLANETARY NEBULAE: THEIR EVOLUTION AND ROLE IN THE UNIVERSE | 2003年 / 209期
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Shells of planetary nebulae (PNe) are usually modeled applying photoionization only although there is a significant fraction of dust embedded in the nebular shells. The calculated temperature and dust-to-gas ratio from IRAS colors is "faked" by the IR flux continuum contribution from the gas and by transiently heated dust grains. Also the effects of grain growth time and thus maximum grain size lead to strong deviations from the model input values, adopting the IRAS data fits.
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页码：289 / 290
页数：2
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