各向异性恒星系统中的噪声、摩擦和径向轨道不稳定性:随机n体模拟

Proceedings of the International Astronomical Union Pub Date : 2021-10-01 DOI:10.1017/S1743921321001484

P. Di Cintio, L. Casetti

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摘要

通过数值模拟研究了噪声作用下各向异性自重力n体系统的径向轨道不稳定性。我们发现，根据轨道各向异性的初始值不同，加性或乘性噪声的存在对不稳定性的发生有不同的影响。

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Noise, friction and the radial-orbit instability in anisotropic stellar systems: stochastic N–body simulations

Abstract By means of numerical simulations we study the radial-orbit instability in anisotropic self-gravitating N–body systems under the effect of noise. We find that the presence of additive or multiplicative noise has a different effect on the onset of the instability, depending on the initial value of the orbital anisotropy.

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Proceedings of the International Astronomical Union

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