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Another Collimation Mechanism of Astrophysical Jet

Another Collimation Mechanism of Astrophysical Jet

作     者:Yoshinari Minami 

作者机构:Advanced Science-Technology Research Organization (Formerly NEC Space Development Division) 35-13 Higashikubo-ChoNishi-Ku Yokohama 220-0062 Japan 

出 版 物:《Journal of Earth Science and Engineering》 (地球科学与工程(英文版))

年 卷 期:2017年第7卷第2期

页      面:74-89页

学科分类:07[理学] 

主  题:Astrophysical jet accretion disk black hole collimation mechanism acceleration mechanism magnetic field continuum curvature space-time cosmology. 

摘      要:The acceleration mechanism of astrophysical jet and the collimation mechanism narrowing down to a long distance have been examined so far. It is a collimation problem of how to narrow the astrophysical jet narrowly. Further, the model of the astrophysical jet acceleration mechanism is required to solve this collimation problem at the same time as well as its acceleration. At the present time, the magnetic force model (magnetic centrifugal force and magnetic pressure) is regarded as the most dominant theory which solves the two problems of astrophysical jet acceleration and collimation at the same time. In addition to the present astrophysical jet narrow collimation mechanism by magnetic tension (pinch) force, in this article, another collimation mechanism which narrows down an astrophysical jet is newly introduced. That is, since a curvature is generated in the space around the astrophysical jet by magnetic field, a kind of pressure equivalent to the gravitational effect is generated in the direction of the interior of astrophysical jet as well as the pinch force from the outer circumferential surface of the astrophysical jet.

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