Testing universal dark-matter caustic rings with galactic rotation curves

被引：1
|
作者：
Davydov, Daniil [1 ,2 ]
Troitsky, Sergey [1 ,2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Phys Dept, 1-2 Leninskie Gory, Moscow 119991, Russia
[2] Russian Acad Sci, Inst Nucl Res, 60th October Anniversary Prospect 7A, Moscow 117312, Russia
来源：
PHYSICS LETTERS B | 2023年 / 839卷
基金：
俄罗斯科学基金会;
关键词：
Dark matter in galaxies; Rotation curves; Axions; SPIRAL GALAXIES; SPECTRUM; MILKY;
D O I：
10.1016/j.physletb.2023.137798
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Infall of cold dark matter on a galaxy may result in caustic rings where the particle density is enhanced. They may be searched for as features in the galactic rotation curves. Previous studies suggested the evidence for these caustic rings with universal, that is common for different galaxies, parameters. Here we test this hypothesis with a large independent set of rotation curves by means of an improved statistical method. No evidence for universal caustic rings is found in the new analysis.(c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons .org /licenses /by /4 .0/). Funded by SCOAP3.
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页数：5
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