ASIA unversity:Item 310904400/8157
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 90451/105768 (86%)
造访人次 : 11114846      在线人数 : 692
RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU 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


    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://asiair.asia.edu.tw/ir/handle/310904400/8157


    题名: Gravity wave-induced polarization of the cosmic microwave background radiation
    作者: K.L.Ng;K.W. Ng
    贡献者: Department of Bioinformatics
    关键词: ANISOTROPY;BACKGROUND RADIATION;COSMIC RAYS;GRAVITY WAVES;POLARIZATION (WAVES);COSMIC BACKGROUND EXPLORER SATELLITE;COSMOLOGY;IONIZATION;MATHEMATICAL MODELS;PERTURBATION;PHOTONS
    日期: 1995
    上传时间: 2010-03-19 16:24:55 (UTC+8)
    出版者: Asia University
    摘要: We discuss the contribution of pure gravitational waves to the cosmic microwave background radiation (CMBR) anisotropy and polarization. It is found that the large-scale polarization of the CMBR is less than 1% of the anisotropy for an universe with standard recombination. The effect of early matter reionization will enhance the CMBR polarization to a 10% level. We have also computed the CMBR polarization for an universe having high baryon density and gravitational waves with a tilted spectrum and found that further enhancement of the polarization is possible. We conclude that measuring the polarization of the CMBR on large angular scales can probe the ionization history of the early universe and set constraints on cosmological models.
    關聯: The Astrophysical Journal 445: 521-525
    显示于类别:[生物資訊與醫學工程學系 ] 期刊論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    0KbUnknown261检视/开启
    310904400-8157.doc34KbMicrosoft Word204检视/开启


    在ASIAIR中所有的数据项都受到原著作权保护.


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