Pattern dark matter and galaxy scaling relations: Is dark matter the self-organized behavior and manifestation of things we already knew?
Pattern dark matter and galaxy scaling relations: Is dark matter the self-organized behavior and manifestation of things we already knew?
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暗物质和星系尺度关系的模式：暗物质是我们已知事物的自组织行为和表现吗？
DOI：
10.1140/epjs/s11734-021-00196-9
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Newell, Alan C.
中科院分区：
文献类型：
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作者：
Venkataramani, Shankar C.;Newell, Alan C.
我们认为，对各种强大的星系尺度关系的自然解释来自于对称破缺导致的模式形成和自组织的角度。我们提出了一个简单的拉格朗日模型，它将星系中正常物质的传统模型与打破连续平移不变性的系统中条纹图案形成的传统模型结合起来。我们证明，存储在图案场中的能量充当有效的暗物质。我们的理论再现了椭圆星系和盘状星系（HSB 和 LSB）的总体特征，包括它们的详细旋转曲线、径向加速度关系和弗里曼定律。我们研究了模型中盘状星系的稳定性，并获得了椭圆星系中心色散的标度关系。对我们结果的自然解释是：（1）“暗物质”可能是一种集体的、涌现的现象，不一定是一种尚未发现的粒子；（2）MOND 是描述自组织复杂系统的有效理论，而不是修改牛顿第二定律的自然基本描述。
We argue that a natural explanation for a variety of robust galaxy scaling relations comes from the perspective of pattern formation and self-organization as a result of symmetry breaking. We propose a simple Lagrangian model that combines a conventional model for normal matter in a galaxy with a conventional model for stripe pattern formation in systems that break continuous translation invariance. We show that the energy stored in the pattern field acts as an effective dark matter. Our theory reproduces the gross features of elliptic galaxies as well as disk galaxies (HSB and LSB) including their detailed rotation curves, the radial acceleration relation, and the Freeman law. We investigate the stability of disk galaxies in the context of our model and obtain scaling relations for the central dispersion for elliptical galaxies. A natural interpretation of our results is that (1) ‘dark matter’ is potentially a collective, emergent phenomenon and not necessarily an as yet undiscovered particle, and (2) MOND is an effective theory for the description of a self-organized complex system rather than a fundamental description of nature that modifies Newton’s second law.