暗物質形成特異星體與結構

Formation and Structure of Exotic stellar Object via Dark Matter

陳宗益(Zong-Yi Chen)

指導教授 ： 陳樫旭

淡江大學/理學院/物理學系碩士班/碩士(2021年)

https://doi.org/10.6846/TKU.2021.00183

摘要

介紹緊緻星體歷史與暗物質相關背景知識，並探討10 keV 能量等級暗物質所形成的巨型星體，和暗物質自相交互作用對於星體結構的影響。
由於暗物質自相交互作用力可以提供星體狀態方程式能量密度和壓力的變化，分別探討純量場和向量場的對於星體的狀態方程式與結構方程式以及星體緊緻度等問題，特別的是暗物質作用力很小，向量場的作用幾乎沒有影響，而純量場會改變星體熱力學系統，在星體的質量、半徑、緊緻度都有明顯的影響。

關鍵字

暗物質 ； 緊緻星體 ； 暗物質自相交互作用

並列摘要

Compact star composition of 10 keV dark matter fermion and dark matter self-interaction research by the Tolman-Oppenheimer- Volkoff equations.
For dark matter self-interaction ,we apply relativistic mean-field theoty that have two particle,scalar boson and vector boson.
We compare both influences that include dark star’s M-R relation ,compactness parameter, tidal Love number and Tidal Deformability.
Furthermore, both cases (scalar boson and vector boson) are completely different.Dark star mass and radius is constant for vector boson.

並列關鍵字

dark matter ； compact star ； self-interaction dark matter

參考文獻

[1] K. G. Begeman, “HI rotation curves of spiral galaxies. I. NGC 3198.,” , vol. 223,pp. 47–60, Oct. 1989.

[2] E. Aprile, J. Aalbers, F. Agostini, M. Alfonsi, L. Althueser, F. Amaro, V. Antochi,E. Angelino, J. Angevaare, F. Arneodo, and et al., “Excess electronic recoil events in xenon1t,”Physical Review D, vol. 102, Oct 2020.

[3] R. H. Fowler, “On dense matter,” , vol. 87, pp. 114–122, Dec. 1926.

[4] S. Chandrasekhar, “The Maximum Mass of Ideal White Dwarfs,” , vol. 74, p. 81,July 1931.

[5] D. G. Yakovlev, P. Haensel, G. Baym, and C. Pethick, “Lev landau and the conceptof neutron stars,”Physics­Uspekhi, vol. 56, p. 289–295, Mar 2013.