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arXiv 2106.01740gr-qcastro-ph.HEhep-ph
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玻色子星及其径向振荡

Boson stars and their radial oscillations

Ben Kain

摘要:

我们回顾了球对称玻色子星脉动方程的推导过程,并对基模和第一激发模的径向振荡频率进行了深入的研究。我们这样做的自相互作用玻色子星,并考虑一系列的自耦合常数的值。我们还数值演化玻色子星和傅立叶变换的动力学解决方案。傅里叶变换给出了一个独立的计算径向振荡频率,并允许我们验证我们的结果从脉动方程。我们发现这两种方法之间非常一致。

英文摘要:

We review the derivation of the pulsations equations for spherically symmetric boson stars and then make a thorough study of the radial oscillation frequencies for the fundamental and first excited modes. We do this for self-interacting boson stars and consider a range of values for the self-coupling constant. We also numerically evolve boson stars and Fourier transform the dynamic solutions. The Fourier transform gives an independent computation of the radial oscillation frequencies and allows us to verify our results obtained from the pulsation equations. We find excellent agreement between the two methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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