The post-AGB evolution of AGB mass loss variations

被引：10

作者：

Meijerink, R

Mellema, G

Simis, Y

机构：

[1] Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands

[2] Astrophys Inst Potsdam, D-14482 Potsdam, Germany

来源：

ASTRONOMY & ASTROPHYSICS | 2003年 / 405卷 / 03期

关键词：

planetary nebulae : general; ISM : bubbles; stars : AGB and post-AGB; hydrodynamics;

D O I：

10.1051/0004-6361:20030696

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new numerical hydrodynamical modelling of the evolution of Asymptotic Giant Branch (AGB) mass loss fluctuations during the post-AGB/Planetary Nebula phase. These models show that after ionization, the observable effects of the mass loss fluctuations disappear in a few thousand years, consistent with the fact that only few PNe have been found to be surrounded by "rings". We derive the observational characteristics of these rings, and compare them to reported observations of the rings around NGC 6543, finding a good match of emission properties and line shapes. We predict small variations in the observable electron temperatures.

引用

页码：1075 / 1086

页数：12

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