National Tsing Hua University Institutional Repository:A quantitative model for bipolar molecular outflows
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 54367/62174 (87%)
造访人次 : 15032836      在线人数 : 119
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTHU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻
    National Tsing Hua University Institutional Repository > 歷任校長 > 徐遐生 (2002-2006) > 會議論文 >  A quantitative model for bipolar molecular outflows


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80903


    题名: A quantitative model for bipolar molecular outflows
    作者: Li, ZY;Shu, FH
    教師: 徐遐生
    日期: 1996
    出版者: Astronomical Society of the Pacific
    關聯: IAU Colloquium 163 on Accretion Phenomena and Related Outflows, PORT DOUGLAS, AUSTRALIA, JUL 15-19, 1996
    关键词: bipolar molecular outflows
    摘要: Since their first discovery in 1980, nearly 200 bipolar molecular outflows have now been observed. These outflows appear to be a ubiquitous phenomenon in the star formation process, although their origin remains unclear. Here, we adopt the thin-shell model of Shu, Ruden, Lada, & Lizano (1991, ApJL, 370, 31) in which bipolar molecular outflows are the swept-up ambient material by powerful winds from central young stellar objects. Besides explaining many observed features of bipolar sources, such as shape, velocity, and the typical extent, this model also naturally accounts for the so-called “Hubble law” of velocity field. However, it was criticized by Masson & Chernin (1992, ApJ, 387, L47) on the ground that much less mass is observed at the high velocity end of some bipolar outflows than expected from this thin-shell model, unless the wind and/or the ambient medium are extremely anisotropic. We show that the extreme anisotropy is in fact inevitable both in the wind and in the ambient medium, because of the presence of dynamically important magnetic fields.
    相関连結: http://adsabs.harvard.edu/abs/1997ASPC..121..757L
    http://www.astrosociety.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80903
    显示于类别:[ 徐遐生 (2002-2006)] 會議論文
    [物理系] 會議論文

    文件中的档案:

    档案 大小格式浏览次数
    index.html0KbHTML1089检视/开启


    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 ©   - 回馈