Clarification on Polarity of Bipolar Electric Field Solitary Structures in Space Plasmas with Satellite Observation
文献类型：期刊论文
| 作者 | Qureshi, M. N. S.; Shi Jian-Kui; Torkar, Klaus; Liu Zhen-Xing |
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2011 |
| 卷号 | 28期号:2页码:25204 |
| ISSN号 | 0256-307X |
| 通讯作者 | Qureshi, MNS (reprint author), Govt Coll Univ, Dept Phys, Lahore 54000, Pakistan. |
| 中文摘要 | The bipolar electric field solitary (EFS) structures observed frequently in space plasmas by satellites have two different polarities, first positive electric field peak then negative (i.e., positive/negative) and first negative then positive peak (i.e., negative/positive). We provide the physical explanation on the polarity of observed bipolar EFS structures with an electrostatic ion fluid model. The results show that if initial electric field E-0 > 0, the polarity of the bipolar EFS structure will be positive/negative; and if E-0 < 0, the polarity of the bipolar EFS structure will be negative/positive. However, for a fixed polarity of the EFS, either positive/negative or negative/positive, if the satellite is located at the positive side of the EFS, the observed polarity should be positive/negative, if the satellite is located at the negative side of the EFS, the observed polarity should be negative/positive. Therefore, we provide a method to clarify the natural polarity of the EFS with observed polarity by satellites. Our results are significant to understand the physical process in space plasma with the satellite observation. |
| 英文摘要 | The bipolar electric field solitary (EFS) structures observed frequently in space plasmas by satellites have two different polarities, first positive electric field peak then negative (i.e., positive/negative) and first negative then positive peak (i.e., negative/positive). We provide the physical explanation on the polarity of observed bipolar EFS structures with an electrostatic ion fluid model. The results show that if initial electric field E-0 > 0, the polarity of the bipolar EFS structure will be positive/negative; and if E-0 < 0, the polarity of the bipolar EFS structure will be negative/positive. However, for a fixed polarity of the EFS, either positive/negative or negative/positive, if the satellite is located at the positive side of the EFS, the observed polarity should be positive/negative, if the satellite is located at the negative side of the EFS, the observed polarity should be negative/positive. Therefore, we provide a method to clarify the natural polarity of the EFS with observed polarity by satellites. Our results are significant to understand the physical process in space plasma with the satellite observation. |
| 学科主题 | 空间物理 |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40874084, 41074114, 40921063]; Chinese Academy of Sciences [KJCX2-YW-T13-3]; Specialized Research Fund for State Key Laboratories |
| 语种 | 英语 |
| 公开日期 | 2014-12-15 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/3187]  |
| 专题 | 国家空间科学中心_空间科学部 |
| 推荐引用方式 GB/T 7714 | Qureshi, M. N. S.,Shi Jian-Kui,Torkar, Klaus,et al. Clarification on Polarity of Bipolar Electric Field Solitary Structures in Space Plasmas with Satellite Observation[J]. CHINESE PHYSICS LETTERS,2011,28(2):25204. |
| APA | Qureshi, M. N. S.,Shi Jian-Kui,Torkar, Klaus,&Liu Zhen-Xing.(2011).Clarification on Polarity of Bipolar Electric Field Solitary Structures in Space Plasmas with Satellite Observation.CHINESE PHYSICS LETTERS,28(2),25204. |
| MLA | Qureshi, M. N. S.,et al."Clarification on Polarity of Bipolar Electric Field Solitary Structures in Space Plasmas with Satellite Observation".CHINESE PHYSICS LETTERS 28.2(2011):25204. |
入库方式： OAI收割
来源：国家空间科学中心
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