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 987654321/85694
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 80990/80990 (100%)
造访人次 : 41640338      在线人数 : 1325
RC Version 7.0 © 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://ir.lib.ncu.edu.tw/handle/987654321/85694


    题名: 合併星系下超大質量黑洞與宿主星系的共同演化;Co-evolution of Supermassive Black Holes and their Host Galaxies with Galaxy Mergers
    作者: 林祺紘;Lin, Chi-Hong
    贡献者: 天文研究所
    关键词: 星系演化;計算天文物理;合併星系;超大質量黑洞;恆星形成;星際介質;星系核球;宇宙學;Galaxy Evolution;Computational Astrophysics;Galaxy Merger;Supermassive Black Hole;Star Formation;Interstellar Medium;Galactic Bulge;Cosmology
    日期: 2021-08-04
    上传时间: 2021-12-07 11:16:10 (UTC+8)
    出版者: 國立中央大學
    摘要: 星系合併對於星系演化是至關重要的過程,藉由階層式結構形成模型,星系的結構得以與宇宙學的理論連結,並且解釋碰撞星系能歷顯著的成長期,而星系中的超大質量黑洞也會同時演化,然而,合併事件往往需數億年來完成,我們無法觀測任意事件的完整細部過程,所以唯一能研究星系合併從開始到結束的物理細節是藉由數值模擬的方式;我們在美國國家科學研究計算中心的超級電腦上使用流體模擬程式--小精靈(GIZMO)進行模擬,它被認為可以適當地替複雜的星系交互作用與超大質量黑洞成長建立模型,其中模擬星系的物理參數來自觀測的結果(例如:蓋亞任務、阿塔卡瑪大型毫米及次毫米波陣列),利用如此的模擬並考慮不同的星系相關物理機制,我們可以研討超大質量黑洞與其宿主星系性質(像是核球、恆星形成率與氣體分佈等等)的共同演化。;Galaxy mergers are crucial processes in galaxy evolution. They hold the key to connect the galactic structure to cosmology through the hierarchical structure formation, which explains that galaxy pairs undergoing a significant transitional stage, and the supermassive black holes (SMBHs) in the galaxies also evolve simultaneously. However, we cannot observe the entire process of any merger events, which take longer than a few billion years, so the only way to study the physics of galaxy mergers from beginning to the end is by utilizing numerical simulations. The hydrodynamics simulation code we used is called GIZMO, which is appropriate to model the processes of the complicated galaxy interactions and SMBH growth. We simulated galaxies with physical parameters based on the observational results (e.g. Gaia, ALMA) and run our simulations on powerful supercomputers at the National Energy Research Scientific Computing Center (NERSC) in the USA. By performing a suite of simulations with different physical conditions, we can investigate the co-evolution between SMBHs and their host galaxies for some properties such as bulge, star formation rate, gas distribution, and so on.
    显示于类别:[天文研究所] 博碩士論文

    文件中的档案:

    档案 描述 大小格式浏览次数
    index.html0KbHTML107检视/开启


    在NCUIR中所有的数据项都受到原著作权保护.

    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 ©   - 隱私權政策聲明