The Planetary Nebula NGC 1360: A Test Case of Magnetic Collimation and Evolution after the Fast Wind

The Planetary Nebula NGC 1360: A Test Case of Magnetic Collimation and Evolution after the Fast Wind
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行星状星云 NGC 1360:快风后磁准直和演化的测试案例

DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
Wolfgang Steffen
Wolfgang Steffen
中科院分区:
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文献类型:
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作者:
M. T. García;J. López;G. García;M. Richer;Wolfgang Steffen

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这个星云的中心恒星有一个观察到的强磁场,并且快速的风不再存在,这表明回流过程可能已经发展。在NGC 1360的主体及其双极喷流系统上获得了空间分辨的长缝阶梯形光谱。喷气机多节结构的深层图像也已获得。这些数据允许对这个物体的结构和运动学进行详细的研究,并且考虑到在星云发展过程中磁准直过程的影响,然后关闭快速恒星风以跟随它的演变到现在的状态,对结果进行建模。该模型能够在这些前提下成功地再现NGC 1360的许多关键特征。
The central star of this nebula has an observed intense magnetic field and the fast wind is no longer present, indicating that a back flow process has probably developed. Long-slit, spatially resolved echelle spectra have been obtained across the main body of NGC 1360 and over its system of bipolar jets. Deep images of the knotty structures of the jets have also been obtained. The data allow a detailed study of the structure and kinematics of this object and the results are modeled considering the effects of a magnetic collimation process in the development of the nebula and then switching off the fast stellar wind to follow its evolution to its current state. The model is able to successfully reproduce many key features of NGC 1360 under these premises.