Bhawna Singh, Kumari Shalini, Sada Nand Prasad, Abdullah A. Ansari
{"title":"研究了限制三体构型中非共线振动点在非均质有限直段条件下的非线性稳定性","authors":"Bhawna Singh, Kumari Shalini, Sada Nand Prasad, Abdullah A. Ansari","doi":"10.1134/S0038094623030024","DOIUrl":null,"url":null,"abstract":"<p>The main focus of the present research work is to analyze the non-linear stability of the triangular equilibrium points <span>\\({{\\mathcal{L}}_{4}}\\)</span> and <span>\\({{\\mathcal{L}}_{5}}\\)</span> in the restricted three-body problem (<i>R3BP</i>). The condition of stability has been found out under the influence of the heterogeneous primary and a radiating finite-straight segment secondary and also under the effect by Coriolis as well as Centrifugal forces. This piece of research has been done by doing the normalization of the Hamiltonian in order to attained the Birkhoff’s normal form of the Hamiltonian, since normal forms of Hamiltonian are important to study the non-linear stability of equilibrium points. The conditions of <i>KAM Theorem</i> have been examined in the presence of resonance cases <span>\\(\\omega _{1}^{'} = 2\\omega _{2}^{'}\\)</span> and <span>\\(\\omega _{1}^{'} = 3\\omega _{2}^{'}\\)</span> and found that these conditions have been failed for three values of mass ratios <span>\\({{\\mu }_{1}},\\)</span> <span>\\({{\\mu }_{2}}\\)</span> and <span>\\({{\\mu }_{3}}.\\)</span> Except these three values, <span>\\({{\\mathcal{L}}_{4}}\\)</span> and <span>\\({{\\mathcal{L}}_{5}}\\)</span> are stable in non-linear sense within the range of linear stability <span>\\(0 < \\mu < {{\\mu }_{c}},\\)</span> where <span>\\({{\\mu }_{c}}\\)</span> is the critical value of mass parameter <span>\\(\\mu .\\)</span> Consequently, in the presence of above mentioned purturbations the triangular equilibrium points are unstable for these three values of mass ratios.</p>","PeriodicalId":778,"journal":{"name":"Solar System Research","volume":null,"pages":null},"PeriodicalIF":0.6000,"publicationDate":"2023-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study the Non-Linear Stability of Non-Collinear Libration Point in the Restricted Three-Body Configuration When the Shapes of the Primaries are Taken as Heterogeneous and Finite-Straight Segment\",\"authors\":\"Bhawna Singh, Kumari Shalini, Sada Nand Prasad, Abdullah A. Ansari\",\"doi\":\"10.1134/S0038094623030024\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The main focus of the present research work is to analyze the non-linear stability of the triangular equilibrium points <span>\\\\({{\\\\mathcal{L}}_{4}}\\\\)</span> and <span>\\\\({{\\\\mathcal{L}}_{5}}\\\\)</span> in the restricted three-body problem (<i>R3BP</i>). The condition of stability has been found out under the influence of the heterogeneous primary and a radiating finite-straight segment secondary and also under the effect by Coriolis as well as Centrifugal forces. This piece of research has been done by doing the normalization of the Hamiltonian in order to attained the Birkhoff’s normal form of the Hamiltonian, since normal forms of Hamiltonian are important to study the non-linear stability of equilibrium points. The conditions of <i>KAM Theorem</i> have been examined in the presence of resonance cases <span>\\\\(\\\\omega _{1}^{'} = 2\\\\omega _{2}^{'}\\\\)</span> and <span>\\\\(\\\\omega _{1}^{'} = 3\\\\omega _{2}^{'}\\\\)</span> and found that these conditions have been failed for three values of mass ratios <span>\\\\({{\\\\mu }_{1}},\\\\)</span> <span>\\\\({{\\\\mu }_{2}}\\\\)</span> and <span>\\\\({{\\\\mu }_{3}}.\\\\)</span> Except these three values, <span>\\\\({{\\\\mathcal{L}}_{4}}\\\\)</span> and <span>\\\\({{\\\\mathcal{L}}_{5}}\\\\)</span> are stable in non-linear sense within the range of linear stability <span>\\\\(0 < \\\\mu < {{\\\\mu }_{c}},\\\\)</span> where <span>\\\\({{\\\\mu }_{c}}\\\\)</span> is the critical value of mass parameter <span>\\\\(\\\\mu .\\\\)</span> Consequently, in the presence of above mentioned purturbations the triangular equilibrium points are unstable for these three values of mass ratios.</p>\",\"PeriodicalId\":778,\"journal\":{\"name\":\"Solar System Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2023-07-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Solar System Research\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S0038094623030024\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solar System Research","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S0038094623030024","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
Study the Non-Linear Stability of Non-Collinear Libration Point in the Restricted Three-Body Configuration When the Shapes of the Primaries are Taken as Heterogeneous and Finite-Straight Segment
The main focus of the present research work is to analyze the non-linear stability of the triangular equilibrium points \({{\mathcal{L}}_{4}}\) and \({{\mathcal{L}}_{5}}\) in the restricted three-body problem (R3BP). The condition of stability has been found out under the influence of the heterogeneous primary and a radiating finite-straight segment secondary and also under the effect by Coriolis as well as Centrifugal forces. This piece of research has been done by doing the normalization of the Hamiltonian in order to attained the Birkhoff’s normal form of the Hamiltonian, since normal forms of Hamiltonian are important to study the non-linear stability of equilibrium points. The conditions of KAM Theorem have been examined in the presence of resonance cases \(\omega _{1}^{'} = 2\omega _{2}^{'}\) and \(\omega _{1}^{'} = 3\omega _{2}^{'}\) and found that these conditions have been failed for three values of mass ratios \({{\mu }_{1}},\)\({{\mu }_{2}}\) and \({{\mu }_{3}}.\) Except these three values, \({{\mathcal{L}}_{4}}\) and \({{\mathcal{L}}_{5}}\) are stable in non-linear sense within the range of linear stability \(0 < \mu < {{\mu }_{c}},\) where \({{\mu }_{c}}\) is the critical value of mass parameter \(\mu .\) Consequently, in the presence of above mentioned purturbations the triangular equilibrium points are unstable for these three values of mass ratios.
期刊介绍:
Solar System Research publishes articles concerning the bodies of the Solar System, i.e., planets and their satellites, asteroids, comets, meteoric substances, and cosmic dust. The articles consider physics, dynamics and composition of these bodies, and techniques of their exploration. The journal addresses the problems of comparative planetology, physics of the planetary atmospheres and interiors, cosmochemistry, as well as planetary plasma environment and heliosphere, specifically those related to solar-planetary interactions. Attention is paid to studies of exoplanets and complex problems of the origin and evolution of planetary systems including the solar system, based on the results of astronomical observations, laboratory studies of meteorites, relevant theoretical approaches and mathematical modeling. Alongside with the original results of experimental and theoretical studies, the journal publishes scientific reviews in the field of planetary exploration, and notes on observational results.