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    Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/102286


    Title: Possible observational evidence of contact discontinuities
    Authors: 許志浤;Hsieh, W.-C.;Shue, J.-H.;Chao, J.-K.;Tsai, T.-C.;Nemecek, Z.;Safrankova, J.
    Contributors: 地球科學學院太空科學與工程學系
    Keywords: Contact;contact discontinuity;Data;Diffusion;Discontinuity;Dye dispersion;Electron energy;Electron temperature;Feasibility studies;Fields;Ion temperature;Magnetic field;Magnetic fields;Magnetohydrodynamics;Magnetosphere;Magnetospheres;MHD jump condition;Observational studies;Plasma diffusion;Pressure;Satellite data;Satellites;Solar wind;Spacecraft;Temperature;Temperature effects;thermal transport
    Date: 2014-12-16
    Issue Date: 2026-04-23 11:05:40 (UTC+8)
    Publisher: Wiley-Blackwell;Washington: Blackwell Publishing Ltd
    Abstract: 摘要: AbstractContact discontinuities (CDs) are discontinuities that have the continuous magnetic fields linked between two sides but no plasma flow across their surfaces. Due to a lack of the CDs evidence in observations, their stable existence is still under debate. CDs are not expected to be observed because of rapid plasma diffusion along the magnetic fields across their surfaces. In this study, we propose a feasible procedure with single‐satellite data for selecting CD based on MHD jump conditions. We find two CD events, one in the solar wind and another in magnetosphere. The electron temperature is smaller than the ion temperature, and the magnetic pressure is larger than the thermal pressure in both CD events. The widths of the transition in the CD events are estimated to be 4.3 and 11.7 ion gyroradii. These two events might be CDs. Multiple spacecraft analyses are needed for further advancement in this topic.
    其他題名: Geophys. Res. Lett
    出版者: Washington: Blackwell Publishing Ltd
    出版日期: 2014-12-16
    出處: Geophysical Research Letters, 2014-12, Vol.41 (23), p.8228-8234
    資源來源: Wiley Online Library
    版權: 2014. American Geophysical Union. All Rights Reserved.
    版權: 2015. American Geophysical Union. All Rights Reserved.
    版權: Copyright Blackwell Publishing Ltd. Dec 2014
    識別號: ISSN: 0094-8276
    識別號: EISSN: 1944-8007
    識別號: DOI: 10.1002/2014GL062342
    Appears in Collections:[DEPARTMENT OF SPACE SCIENCE AND ENGINEERING] journal & Dissertation

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