Dynamical friction in rotating ultralight dark matter galactic cores

IF 3.6 3区物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS

Classical and Quantum Gravity Pub Date : 2024-11-06 DOI:10.1088/1361-6382/ad8a11

V M Gorkavenko, O V Barabash, T V Gorkavenko, O M Teslyk, A O Zaporozhchenko, Junji Jia, A I Yakimenko and E V Gorbar

引用次数: 0

Abstract

Dynamical friction and stellar orbital motion in spiral galaxies with dark matter composed of ultralight bosons in the state of rotating Bose–Einstein condensate (BEC) are studied. It is found that the dynamical friction force is significantly affected by the topological charge of the vortex structure of the BEC core with the strongest effect at distances near the galactic center. It is also shown that the ultralight dark matter self-interaction plays an important role in studying the dynamical friction.

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旋转超轻暗物质星系核心的动力摩擦

研究了暗物质由处于旋转玻色-爱因斯坦凝聚态（BEC）的超轻玻色子组成的螺旋星系中的动力摩擦力和恒星轨道运动。研究发现，动力学摩擦力受 BEC 内核涡旋结构拓扑电荷的影响很大，在星系中心附近的距离上影响最大。研究还表明，超轻暗物质自相互作用在动力学摩擦力研究中起着重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Classical and Quantum Gravity 物理-天文与天体物理

CiteScore

7.00

自引率

8.60%

发文量

301

审稿时长

2-4 weeks

期刊介绍： Classical and Quantum Gravity is an established journal for physicists, mathematicians and cosmologists in the fields of gravitation and the theory of spacetime. The journal is now the acknowledged world leader in classical relativity and all areas of quantum gravity.