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Candidate detection of GRB221009A by Yangbajing muon telescope 羊八井μ介子望远镜对 GRB221009A 的候选探测
IF 4.2 3区 物理与天体物理
Astroparticle Physics Pub Date : 2024-11-07 DOI: 10.1016/j.astropartphys.2024.103062
F. Nozzoli
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引用次数: 0
Gravitational lensing around dark matter in galactic halo region 银河晕区暗物质周围的引力透镜
IF 4.2 3区 物理与天体物理
Astroparticle Physics Pub Date : 2024-11-03 DOI: 10.1016/j.astropartphys.2024.103061
Farook Rahaman, Anikul Islam
{"title":"Gravitational lensing around dark matter in galactic halo region","authors":"Farook Rahaman,&nbsp;Anikul Islam","doi":"10.1016/j.astropartphys.2024.103061","DOIUrl":"10.1016/j.astropartphys.2024.103061","url":null,"abstract":"<div><div>The presence of dark matter in the galactic region has decisively confirmed by astronomical observations , however, the characteristics of dark matter yet to be recognized correctly. Utilizing the Einstein’s general theory of relativity and the observed rotational curve profile as input, we point out some features of galactic dark matter. Usually, dark matter is not directly visible but affects the lensing. In this paper, the deflection of a massive particle by galactic dark matter is studied using the Jacobi metric approach. We also provide a brief analysis of the image features of the deflection angle.</div></div>","PeriodicalId":55439,"journal":{"name":"Astroparticle Physics","volume":null,"pages":null},"PeriodicalIF":4.2,"publicationDate":"2024-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142660694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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