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Clarification on Polarity of Bipolar Electric Field Solitary Structures in Space Plasmas with Satellite Observation
Qureshi, M. N. S.; Shi Jian-Kui; Torkar, Klaus; Liu Zhen-Xing; Qureshi, MNS (reprint author), Govt Coll Univ, Dept Phys, Lahore 54000, Pakistan.
Department空间科学部
Source PublicationCHINESE PHYSICS LETTERS
2011
Volume28Issue:2Pages:25204
ISSN0256-307X
Language英语
AbstractThe 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.; 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.
Indexed BySCI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3187
Collection空间科学部
Corresponding AuthorQureshi, MNS (reprint author), Govt Coll Univ, Dept Phys, Lahore 54000, Pakistan.
Recommended Citation
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,&Qureshi, MNS .(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.
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