淡江大學機構典藏:Item 987654321/72710
English  |  正體中文  |  简体中文  |  全文筆數/總筆數 : 62797/95867 (66%)
造訪人次 : 3733669      線上人數 : 351
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜尋範圍 查詢小技巧:
  • 您可在西文檢索詞彙前後加上"雙引號",以獲取較精準的檢索結果
  • 若欲以作者姓名搜尋,建議至進階搜尋限定作者欄位,可獲得較完整資料
  • 進階搜尋
    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/72710


    題名: Constraining Intracluster Gas Models with AMiBA13
    作者: Molnar, Sandor M.;Umetsu, Keiichi;Birkinshaw, Mark;Bryan, Greg;Haiman, Zoltán;Hearn, Nathan;Shang, Cien;Ho, Paul T. P.;Huang, Chih-Wei Locutus;Koch, Patrick M.;Liao, Yu-Wei Victor;Lin, Kai-Yang;Liu, Guo-Chin;Nishioka, Hiroaki;Wang, Fu-Cheng;Wu, Jiun-Huei Proty
    貢獻者: 淡江大學物理學系
    關鍵詞: galaxies;clusters;general
    日期: 2010-11-10
    上傳時間: 2011-10-24 10:59:19 (UTC+8)
    出版者: Philadelphia: Institute of Physics Publishing, Inc.
    摘要: Clusters of galaxies have been extensively used to determine cosmological parameters. A major difficulty in making the best use of Sunyaev-Zel'dovich (SZ) and X-ray observations of clusters for cosmology is that using X-ray observations it is difficult to measure the temperature distribution and therefore determine the density distribution in individual clusters of galaxies out to the virial radius. Observations with the new generation of SZ instruments are a promising alternative approach. We use clusters of galaxies drawn from high-resolution adaptive mesh refinement cosmological simulations to study how well we should be able to constrain the large-scale distribution of the intracluster gas (ICG) in individual massive relaxed clusters using AMiBA in its configuration with 13 1.2 m diameter dishes (AMiBA13) along with X-ray observations. We show that non-isothermal β models provide a good description of the ICG in our simulated relaxed clusters. We use simulated X-ray observations to estimate the quality of constraints on the distribution of gas density, and simulated SZ visibilities (AMiBA13 observations) for constraints on the large-scale temperature distribution of the ICG. We find that AMiBA13 visibilities should constrain the scale radius of the temperature distribution to about 50% accuracy. We conclude that the upgraded AMiBA, AMiBA13, should be a powerful instrument to constrain the large-scale distribution of the ICG.
    關聯: The Astrophysical Journal 723(2), pp.1272-1285
    DOI: 10.1088/0004-637X/723/2/1272
    顯示於類別:[物理學系暨研究所] 期刊論文

    文件中的檔案:

    檔案 描述 大小格式瀏覽次數
    0004-637X_723_2_1272.pdf3223KbAdobe PDF217檢視/開啟
    index.html0KbHTML270檢視/開啟

    在機構典藏中所有的資料項目都受到原著作權保護.

    TAIR相關文章

    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回饋