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研究生： 王舒蓉
Wang, Shu-Rong
論文名稱： 雙黑洞系統在奇異型星系中的研究
The Study on Systems with Binary Black Holes in Galaxies with Cusp Potential
指導教授： 葉麗琴
Yeh, Li-Chin
口試委員: 江瑛貴
Jiang, Ing-Guey
陳賢修
Chen, Shyan-Shiou
學位類別： 碩士
Master
系所名稱： 南大校區系所調整院務中心 - 應用數學系所
應用數學系所(English)
論文出版年： 2017
畢業學年度： 105
語文別： 英文
論文頁數： 31
中文關鍵詞： 雙黑洞系統
外文關鍵詞： Binary Black Holes
相關次數： 點閱：4  下載：0 
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    • 我們研究雙黑洞系統在奇異型星系中，並且研究不同初始速度所造成的影響。當獲得恆星軌道時，可以計算銀河中心的表面亮度。銀河系中心附近的表面亮度可能會顯示一些信號，這些信號與超大質量雙黑洞附近的星星的動力演化有關。在論文的模型模中，我們提供了核心星系的模型。

    We study the systems with binary black holes in galaxies with cusp potential. We also investigate the effect for different initial velocities. The surface brightness of galactic centers can be calculated when stellar orbits have been obtained. The surface brightness near the center of galaxies might show some signals which are related to the dynamical evolution of stars near the supermassive binary black holes. In simulations, we provide the model for the core galaxy.

    1 Introduction...................................................1 2 The Model......................................................3 2.1 Equilibrium Points...........................................5 2.1.1 The z=0 Case...............................................5 2.1.2 The z≠0 Case...............................................6 3 Model Tests....................................................7 3.1 Zero-velocity Curves.........................................7 3.2 Roche Lobes..................................................9 3.3 To study the behaviour of particles near one Black Hole.....11 3.3.1 The Velocity Vz=0.........................................11 3.3.2 The Velocity Vz≠0.........................................15 3.3.3 Compare Velocity Vz=0 and Vz≠0............................20 4 Simulations...................................................23 4.1 The Case of m=R=Mg=1........................................25 4.2 The Case of m=(10)^(-3), R=0.2 and Mg=1.....................27 5 Concluding Remarks............................................30 6 Bibliography..................................................31

    [1] Jiang, I.-G., Yeh, L.-C., On the Chermnykh-Like Problems: I. The Mass Parameter u=0.5, Astrophysics and Space Science (2006) VOL 305, pp 341-348
    [2] Jiang, I.-G., Yeh, L.-C., On the Chermnykh-Like Problems: II. The Equilibrium Points, Astrophysics and Space Science (2006) VOL 306, pp 189-200
    [3] Jiang, I.-G., Yeh, L.-C., Galaxies with supermassive binary black holes: (II) a model with cuspy galactic density profiles, Astrophysics and Space Science (2014) VOL 354, pp 525-533
    [4] Lauer, T.R., et al., The Centers of Early-Type Galaxies with HST.I.An Observational Survey, Astronomical Journal (1995) VOL 110, p 2622
    [5] Milosavljevic, M., Merritt, D., Formation of Galactic Nuclei, The Astrophysical Journal (2001) VOL 563, pp 34-62
    [6] Quinlan, G.D., The dynamical evolution of massive black hole binaries I. Hardening in a fixed stellar background, New Astronomy (1996) VOL 1, p 35-56
    [7] Wu, Y.-T., Jiang, I.-G., On the Formation of Elliptical Rings in Disk Galaxies, The Astrophysical Journal (2015) VOL 805, pp 32

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