The importance of photoelectric heating by dust in planetary nebulae

被引：53

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

页码：742 / 750

页数：9

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