中大機構典藏-NCU Institutional Repository-提供博碩士論文、考古題、期刊論文、研究計畫等下載:Item 987654321/50829
English  |  正體中文  |  简体中文  |  Items with full text/Total items : 67621/67621 (100%)
Visitors : 23030110      Online Users : 63
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50829


    Title: 3D Magneto-hydrodynamic simulations of Parker instability with cosmic rays
    Authors: Lo,YY;Ko,CM;Wang,CY
    Contributors: 天文研究所
    Keywords: DISK;GAS
    Date: 2011
    Issue Date: 2012-03-27 18:10:55 (UTC+8)
    Publisher: 國立中央大學
    Abstract: This study investigates Parker instability in an interstellar medium (ISM) near the Galactic plane using three-dimensional magneto-hydrodynamic simulations Parker instability arises from the presence of a magnetic field in a plasma wherein the magnetic buoyant pressure expels the gas and cause the gas to move along the field lines The process is thought to induce the formation of giant molecular clouds in the Galaxy In this study the effects of cosmic-ray (CR) diffusion are examined The ISM at equilibrium is assumed to comprise a plasma fluid and a CR fluid at various temperatures with a uniform magnetic field passing through it in the azimuthal direction of the Galactic disk After a small perturbation the unstable gas aggregates at the footpoint of the magnetic fields and forms dense blobs The growth rate of the instability increases with the strength of the CR diffusion The formation of dense clouds is enhanced by the effect of cosmic rays (CRs) whereas the shape of the clouds depends sensitively on the initial conditions of perturbation (C) 2010 Elsevier B V All rights reserved
    Relation: COMPUTER PHYSICS COMMUNICATIONS
    Appears in Collections:[Graduate Institute of Astronomy] journal & Dissertation

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML446View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明