| 陨星碰撞对地磁场的影响 |
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| 引用本文： | 韩粤生.陨星碰撞对地磁场的影响[J].广州大学学报(自然科学版),2006,5(4):14-19. |
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| 作者姓名： | 韩粤生 |
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| 作者单位： | 广州大学,物理与电子工程学院,广东,广州,510006 |
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| 基金项目： | 本文曾得到广州大学樊军辉教授的关心与帮助,在此表示衷心的谢意. |
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| 摘 要： | 在固体地球的假设下,从电子在转动参照系中的Newton运动方程出发,运用经典的电子气模型,指出了地球在自转发生变化时将产生惯性电流,从而影响地球磁矩.由此推论:地磁场有可能因短暂时间内地球自转角动量的变化而受到影响,而小行星、陨星等与地球的天体碰撞,对地磁场有着重大的直接影响,包括地磁场的反向.
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| 关 键 词： | 地磁场 惯性电流 地球自转角动量 地球磁矩 陨星 天体碰撞 |
| 文章编号： | 1671-4229(2006)04-0014-06 |
| 收稿时间： | 2005-08-30 |
| 修稿时间： | 2006-04-13 |
Influence of the meteorite colliding with the Earth on geomagnetism |
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| HAN Yue-sheng.Influence of the meteorite colliding with the Earth on geomagnetism[J].Journal og Guangzhou University:Natural Science Edition,2006,5(4):14-19. |
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| Authors: | HAN Yue-sheng |
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| Institution: | School of Physics and Electric Engineering, Guangzhou University Guangzhou 510006, China |
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| Abstract: | In this paper,based on the Newtonian equations of electrons in the rotary frame,and the assumption of a solid Earth,with the pattern of electron gas,some solutions have been obtained,which show that the rotation variation of the Earth will result in the inertial current,and therefore affect the magnetic moment of the Earth.The conclusion is that the geomagnetic field was possibly formed with the variation of the angular momentum of the Earth's rotation in short time;and the collision between asteroid,or meteorite and the Earth,directly affected the geomagnetism,especially to the geomagnetic reversals. |
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| Keywords: | geomagnetic fields inertial current angular momentum of rotation magnetic moment meteorite colliding with celestial body |
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