Orbit classification in a galaxy model with a biaxial dark matter halo

IF 1.9 4区 物理与天体物理 Q2 ASTRONOMY & ASTROPHYSICS
H.I. Alrebdi , K.E. Papadakis , F.L. Dubeibe , E.E. Zotos
{"title":"Orbit classification in a galaxy model with a biaxial dark matter halo","authors":"H.I. Alrebdi ,&nbsp;K.E. Papadakis ,&nbsp;F.L. Dubeibe ,&nbsp;E.E. Zotos","doi":"10.1016/j.ascom.2024.100820","DOIUrl":null,"url":null,"abstract":"<div><p>This paper presents an analysis of a galaxy model with axial symmetry that includes a spherical nucleus, a disk, and a biaxial halo composed of dark matter. The aim is to provide a complete overview of the orbital dynamics of the galactic system and determine the impact of the flattening parameter of the dark matter halo using various numerical methods. Additionally, a comprehensive presentation of the system’s network of symmetric periodic orbits is provided. The findings indicate that the flattening parameter has a reduced effect on the network of symmetric periodic orbits when an oblate halo component is considered, as compared to the case when the prolate halo is present. Finally, the study reveals that the convergence of the characteristic curves of the orbital families with multiplicities 2, 3, 4, and 5 strongly depends on the flattening parameter.</p></div>","PeriodicalId":48757,"journal":{"name":"Astronomy and Computing","volume":"47 ","pages":"Article 100820"},"PeriodicalIF":1.9000,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astronomy and Computing","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2213133724000350","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0

Abstract

This paper presents an analysis of a galaxy model with axial symmetry that includes a spherical nucleus, a disk, and a biaxial halo composed of dark matter. The aim is to provide a complete overview of the orbital dynamics of the galactic system and determine the impact of the flattening parameter of the dark matter halo using various numerical methods. Additionally, a comprehensive presentation of the system’s network of symmetric periodic orbits is provided. The findings indicate that the flattening parameter has a reduced effect on the network of symmetric periodic orbits when an oblate halo component is considered, as compared to the case when the prolate halo is present. Finally, the study reveals that the convergence of the characteristic curves of the orbital families with multiplicities 2, 3, 4, and 5 strongly depends on the flattening parameter.

具有双轴暗物质晕的星系模型中的轨道分类
本文分析了一个具有轴对称性的星系模型,它包括一个球核、一个圆盘和一个由暗物质组成的双轴晕。目的是全面概述星系系统的轨道动力学,并利用各种数值方法确定暗物质晕的扁平化参数的影响。此外,还全面介绍了该系统的对称周期轨道网络。研究结果表明,在考虑扁平晕成分时,扁平化参数对对称周期轨道网络的影响要小于存在长形晕时的影响。最后,研究揭示了乘数为 2、3、4 和 5 的轨道族的特征曲线的收敛性在很大程度上取决于扁平化参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Astronomy and Computing
Astronomy and Computing ASTRONOMY & ASTROPHYSICSCOMPUTER SCIENCE,-COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS
CiteScore
4.10
自引率
8.00%
发文量
67
期刊介绍: Astronomy and Computing is a peer-reviewed journal that focuses on the broad area between astronomy, computer science and information technology. The journal aims to publish the work of scientists and (software) engineers in all aspects of astronomical computing, including the collection, analysis, reduction, visualisation, preservation and dissemination of data, and the development of astronomical software and simulations. The journal covers applications for academic computer science techniques to astronomy, as well as novel applications of information technologies within astronomy.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信