The importance of photoelectric heating by dust in planetary nebulae

被引：51
|
作者：
Dopita, MA [1 ]
Sutherland, RS [1 ]
机构：
[1] Australian Natl Univ, Mt Stromlo Obser, Res Sch Astron & Astrophys, Astrophys Theory Ctr, Weston, ACT 2611, Australia
来源：
ASTROPHYSICAL JOURNAL | 2000年 / 539卷 / 02期
关键词：
dust; extinction; ISM : abundances; planetary nebulae : general; radiative transfer;
D O I：
10.1086/309241
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present theoretical self-consistent models of planetary nebulae including detailed dust heating. Galactic, LMC, and SMC abundance patterns are used in a comparison of dusty and dust-free models. We show that dust has a strong effect on the thermal structure and emission-line spectrum of highly ionized species in planetary nebulae. These models have implications for excitation and energy balance methods for determining central star temperatures. We present results for [O III] lambda 5007 and [N II] lambda 6583 lines for Galactic, LMC, and SMC abundances.
引用
收藏
页码：742 / 750
页数：9
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