A wind–shell interaction model for multipolar planetary nebulae
A wind–shell interaction model for multipolar planetary nebulae
复制标题
多极行星状星云的风壳相互作用模型
DOI:
10.1093/mnras/stt1583
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发表时间:
2013
影响因子:
4.8
通讯作者:
M. Magnor
中科院分区:
文献类型:
--
作者:
W. Steffen;N. Koning;A. Esquivel;G. Garcia-Segura;M. T. Garcia-Diaz;J. Lopez;M. Magnor
We explore the formation of multipolar structures in planetary and pre-planetary nebulae from the interaction of a fast post-asymptotic giant branch wind with a highly inhomogeneous and filamentary shell structure assumed to form during the final phase of the high-density wind. The simulations were performed with a new hydrodynamics code integrated in the interactive framework of the astrophysical modelling packageshape. In contrast to conventional astrophysical hydrodynamics software, the new code does not require any programming intervention by the user for setting up or controlling the code. Visualization and analysis of the simulation data has been done inshapewithout external software. The key conclusion from the simulations is that secondary lobes in planetary nebulae, such as Hubble 5 and K3–17, can be formed through the interaction of a fast low-density wind with a complex high-density environment, such as a filamentary circumstellar shell. The more complicated alternative explanation of intermittent collimated outflows that change direction, in many cases, may therefore not be necessary. We consider that the wind–shell interaction scenario is more likely since the bow-shock shape expected from a strongly cooling bow-shock from jets is different from that of the observed bubbles. Furthermore, the time-scales of the wind–wind interaction suggest that the progenitor star was rather massive.
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影响因子:
6.5
作者:
B. Freytag;S. Höfner
通讯作者:
S. Höfner
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
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DOI:
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2000
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作者:
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作者:
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通讯作者:
D. Spini
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
S. Pottasch;R. Surendiranath
通讯作者:
R. Surendiranath