English  |  正體中文  |  简体中文  |  Items with full text/Total items : 54371/62179 (87%)
Visitors : 8709416      Online Users : 115
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU 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://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81041


    Title: MODELS OF PARTIALLY RELAXED STELLAR DISKS
    Authors: SHU, F.H.
    教師: 徐遐生
    Date: 1969
    Publisher: American Astronomical Society
    Relation: ASTROPHYSICAL JOURNAL, American Astronomical Society, Volume 158, Issue 2P1, 1969, Pages 505-518
    Keywords: PARTIALLY RELAXED STELLAR DISKS
    Abstract: The proposal by Lynden-Bell that violently changing gravitational fields serve as the primary mechanism of relaxation in a galaxy of stars is reexamined for disk galaxies. The point of view adopted is that the only relaxation mechanism operative for stars in the early life of such galaxies is an axisymmetric form of the Jeans instability discussed by Toomre. The most probable form of the distribution function which results for a disk of infinitesimal thickness is obtained from statistical considerations. An asymptotic method of solution based on this distribution is developed for the construction of galactic models from observed rotation curves. The distribution of stars with low peculiar velocities follows Schwarzschild’s law whereas that of stars with high velocities shows the asymmetry in galactic longitude discussed by Oort.
    Relation Link: http://aas.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81041
    Appears in Collections:[ 徐遐生 (2002-2006)] 期刊論文
    [物理系] 期刊論文

    Files in This Item:

    File SizeFormat
    140.pdf1217KbAdobe PDF401View/Open


    在NTHUR中所有的資料項目都受到原著作權保護,僅提供學術研究及教育使用,敬請尊重著作權人之權益。若須利用於商業或營利,請先取得著作權人授權。
    若發現本網站收錄之內容有侵害著作權人權益之情事,請權利人通知本網站管理者(smluo@lib.nthu.edu.tw),管理者將立即採取移除該內容等補救措施。

    SFX Query

    與系統管理員聯絡

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback