O. O. Tsareva, H. V. Malova, V. Yu. Popov, L. M. Zelenyi
{"title":"Asymmetric Equilibrium Structures of Superthin Current Sheets: The Asymmetry of Plasma Sources","authors":"O. O. Tsareva, H. V. Malova, V. Yu. Popov, L. M. Zelenyi","doi":"10.1134/S1063780X25604250","DOIUrl":null,"url":null,"abstract":"<p>The influence of asymmetry of plasma sources on the structure and spatial localization of a superthin current sheet (STCS) supported by demagnetized electrons is studied using a self-consistent model. The simulation takes into account the presence of a single plasma source in the northern hemisphere, which makes the plasma flow asymmetric. It is demonstrated that the asymmetry of plasma sources results in a minor reduction in the current carried by demagnetized electrons on the Speiser orbits. In the process, an enhancement of the negative diamagnetic currents is observed at the source side. The STCS center shifts to the side opposite the source position to preserve the balance of the total pressure. A comparison of STCS characteristics formed by demagnetized and magnetized electron populations reveals that the sheet structure is more sensitive to asymmetry in the case of magnetized electrons.</p>","PeriodicalId":735,"journal":{"name":"Plasma Physics Reports","volume":"52 2","pages":"179 - 185"},"PeriodicalIF":1.1000,"publicationDate":"2026-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma Physics Reports","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1063780X25604250","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
引用次数: 0
Abstract
The influence of asymmetry of plasma sources on the structure and spatial localization of a superthin current sheet (STCS) supported by demagnetized electrons is studied using a self-consistent model. The simulation takes into account the presence of a single plasma source in the northern hemisphere, which makes the plasma flow asymmetric. It is demonstrated that the asymmetry of plasma sources results in a minor reduction in the current carried by demagnetized electrons on the Speiser orbits. In the process, an enhancement of the negative diamagnetic currents is observed at the source side. The STCS center shifts to the side opposite the source position to preserve the balance of the total pressure. A comparison of STCS characteristics formed by demagnetized and magnetized electron populations reveals that the sheet structure is more sensitive to asymmetry in the case of magnetized electrons.
期刊介绍:
Plasma Physics Reports is a peer reviewed journal devoted to plasma physics. The journal covers the following topics: high-temperature plasma physics related to the problem of controlled nuclear fusion based on magnetic and inertial confinement; physics of cosmic plasma, including magnetosphere plasma, sun and stellar plasma, etc.; gas discharge plasma and plasma generated by laser and particle beams. The journal also publishes papers on such related topics as plasma electronics, generation of radiation in plasma, and plasma diagnostics. As well as other original communications, the journal publishes topical reviews and conference proceedings.