q变形统计对恒星稳定性的影响

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physica A: Statistical Mechanics and its Applications Pub Date : 2024-10-16 DOI:10.1016/j.physa.2024.130163

M. Senay

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引用次数: 0

摘要

在q变形麦克斯韦-玻尔兹曼统计的背景下研究钱德拉塞卡的恒星平衡和稳定条件，可以推导出一个新的分析公式，扩展了其经典案例。这一推导假定恒星物质的动力学描述符合广义麦克斯韦-玻尔兹曼分布。研究发现，对于给定质量的恒星，其中心的最大允许辐射压力取决于变形参数 q。

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Implications of q-deformed statistics on stellar stability

Examination of Chandrasekhar’s equilibrium and stability condition for stars in the context of

q

-deformed Maxwell–Boltzmann statistics leads to the derivation of a new analytical formula that extends its classical case. This derivation assumes that the kinetic description of stellar matter conforms to a generalized Maxwell–Boltzmann distribution. It has been found that the maximum allowable radiation pressure at the center of a star for a given mass depends on the deformation parameter

q

. The classical Chandrasekhar condition is recovered in this framework when

q

equals 1.

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来源期刊

Physica A: Statistical Mechanics and its Applications 物理-物理：综合

CiteScore

7.20

自引率

9.10%

发文量

852

审稿时长

6.6 months

期刊介绍： Physica A: Statistical Mechanics and its Applications Recognized by the European Physical Society Physica A publishes research in the field of statistical mechanics and its applications. Statistical mechanics sets out to explain the behaviour of macroscopic systems by studying the statistical properties of their microscopic constituents. Applications of the techniques of statistical mechanics are widespread, and include: applications to physical systems such as solids, liquids and gases; applications to chemical and biological systems (colloids, interfaces, complex fluids, polymers and biopolymers, cell physics); and other interdisciplinary applications to for instance biological, economical and sociological systems.