巴罗全息Chaplygin气体模型重建及其宇宙学结果的综合分析

IF 5 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS
Sanjeeda Sultana , Chayan Ranjit , Surajit Chattopadhyay
{"title":"巴罗全息Chaplygin气体模型重建及其宇宙学结果的综合分析","authors":"Sanjeeda Sultana ,&nbsp;Chayan Ranjit ,&nbsp;Surajit Chattopadhyay","doi":"10.1016/j.dark.2025.101843","DOIUrl":null,"url":null,"abstract":"<div><div>In the current study, we have reconstructed variable modified Chaplygin gas in the Barrow holographic dark energy framework motivated by many recent studies. We have validated the generalized second law of thermodynamics for the reconstructed model. The permissible values of the reconstructed model have been determined by the recent astrophysical and cosmological observational data. The Hubble parameter is presented in terms of the observable parameters and redshift <span><math><mi>z</mi></math></span> and other model parameters. From the Stern data set and joint data set of Stern with BAO and CMB observations, the bounds of the model parameters <span><math><mrow><mo>(</mo><msub><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>,</mo><msub><mrow><mi>Ω</mi></mrow><mrow><mi>b</mi><mi>h</mi><mi>d</mi><mn>0</mn></mrow></msub><mo>)</mo></mrow></math></span> are obtained by the <span><math><msup><mrow><mi>χ</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> minimization procedure. The best-fit value of the distance modulus <span><math><mrow><mi>μ</mi><mrow><mo>(</mo><mi>z</mi><mo>)</mo></mrow></mrow></math></span> against redshift <span><math><mi>z</mi></math></span> is obtained for the reconstructed model and it is consistent with the SNe Ia union2 sample data.</div></div>","PeriodicalId":48774,"journal":{"name":"Physics of the Dark Universe","volume":"48 ","pages":"Article 101843"},"PeriodicalIF":5.0000,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences\",\"authors\":\"Sanjeeda Sultana ,&nbsp;Chayan Ranjit ,&nbsp;Surajit Chattopadhyay\",\"doi\":\"10.1016/j.dark.2025.101843\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>In the current study, we have reconstructed variable modified Chaplygin gas in the Barrow holographic dark energy framework motivated by many recent studies. We have validated the generalized second law of thermodynamics for the reconstructed model. The permissible values of the reconstructed model have been determined by the recent astrophysical and cosmological observational data. The Hubble parameter is presented in terms of the observable parameters and redshift <span><math><mi>z</mi></math></span> and other model parameters. From the Stern data set and joint data set of Stern with BAO and CMB observations, the bounds of the model parameters <span><math><mrow><mo>(</mo><msub><mrow><mi>B</mi></mrow><mrow><mn>0</mn></mrow></msub><mo>,</mo><msub><mrow><mi>Ω</mi></mrow><mrow><mi>b</mi><mi>h</mi><mi>d</mi><mn>0</mn></mrow></msub><mo>)</mo></mrow></math></span> are obtained by the <span><math><msup><mrow><mi>χ</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span> minimization procedure. The best-fit value of the distance modulus <span><math><mrow><mi>μ</mi><mrow><mo>(</mo><mi>z</mi><mo>)</mo></mrow></mrow></math></span> against redshift <span><math><mi>z</mi></math></span> is obtained for the reconstructed model and it is consistent with the SNe Ia union2 sample data.</div></div>\",\"PeriodicalId\":48774,\"journal\":{\"name\":\"Physics of the Dark Universe\",\"volume\":\"48 \",\"pages\":\"Article 101843\"},\"PeriodicalIF\":5.0000,\"publicationDate\":\"2025-02-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of the Dark Universe\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S221268642500038X\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ASTRONOMY & ASTROPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of the Dark Universe","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S221268642500038X","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0

摘要

在当前的研究中,我们在巴罗全息暗能量框架中重构了变量修饰的Chaplygin气体。我们验证了重建模型的广义热力学第二定律。重建模型的允许值是由最近的天体物理学和宇宙学观测资料确定的。哈勃参数是用可观测参数和红移z等模型参数来表示的。从Stern数据集以及Stern与BAO和CMB观测数据的联合数据集中,通过χ2最小化程序得到模型参数的界(B0,Ωbhd0)。得到了重建模型的距离模量μ(z)对红移z的最佳拟合值,与sniunion2样品数据一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A comprehensive analysis of Barrow holographic Chaplygin gas model reconstruction and its cosmological consequences
In the current study, we have reconstructed variable modified Chaplygin gas in the Barrow holographic dark energy framework motivated by many recent studies. We have validated the generalized second law of thermodynamics for the reconstructed model. The permissible values of the reconstructed model have been determined by the recent astrophysical and cosmological observational data. The Hubble parameter is presented in terms of the observable parameters and redshift z and other model parameters. From the Stern data set and joint data set of Stern with BAO and CMB observations, the bounds of the model parameters (B0,Ωbhd0) are obtained by the χ2 minimization procedure. The best-fit value of the distance modulus μ(z) against redshift z is obtained for the reconstructed model and it is consistent with the SNe Ia union2 sample data.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Physics of the Dark Universe
Physics of the Dark Universe ASTRONOMY & ASTROPHYSICS-
CiteScore
9.60
自引率
7.30%
发文量
118
审稿时长
61 days
期刊介绍: Physics of the Dark Universe is an innovative online-only journal that offers rapid publication of peer-reviewed, original research articles considered of high scientific impact. The journal is focused on the understanding of Dark Matter, Dark Energy, Early Universe, gravitational waves and neutrinos, covering all theoretical, experimental and phenomenological aspects.
×
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