Hypervelocity stars are far-flung

IF 14.3 1区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Nature Astronomy Pub Date : 2025-04-11 DOI:10.1038/s41550-025-02542-6
Paul Woods
{"title":"Hypervelocity stars are far-flung","authors":"Paul Woods","doi":"10.1038/s41550-025-02542-6","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"9 4","pages":"476-476"},"PeriodicalIF":14.3000,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nature Astronomy","FirstCategoryId":"101","ListUrlMain":"https://www.nature.com/articles/s41550-025-02542-6","RegionNum":1,"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
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
超高速恒星遥不可及
运行速度超过星系逃逸速度的恒星——即所谓的超高速恒星——在外部不可抗力事件(如超新星爆炸或靠近黑洞的通道)发生后达到其速度。在超高速恒星(HVS)调查中,银河系晕中的21颗主序b星被确定为未被结合,Jiwon Jesse Han和他的同事最近的分析已经确定了近一半样本的可能起源是大麦哲伦星云(LMC),这引发了超大质量黑洞(SMBH)是否可能存在的问题。Han和他的同事们整理了盖亚数据发布的所有21颗恒星的3个固有运动,并采用银河系-大麦哲伦云势模型计算了可能的历史轨道,考虑了径向速度、距离和固有运动的不确定性。按照这个400 Myr的逆模型,9颗恒星被发现与LMC起源一致,7颗与银河系中心起源一致,5颗是模糊的。所有lmc起源的恒星都聚集在天空中的狮子座星座周围。
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 去求助
来源期刊
Nature Astronomy
Nature Astronomy Physics and Astronomy-Astronomy and Astrophysics
CiteScore
19.50
自引率
2.80%
发文量
252
期刊介绍: Nature Astronomy, the oldest science, has played a significant role in the history of Nature. Throughout the years, pioneering discoveries such as the first quasar, exoplanet, and understanding of spiral nebulae have been reported in the journal. With the introduction of Nature Astronomy, the field now receives expanded coverage, welcoming research in astronomy, astrophysics, and planetary science. The primary objective is to encourage closer collaboration among researchers in these related areas. Similar to other journals under the Nature brand, Nature Astronomy boasts a devoted team of professional editors, ensuring fairness and rigorous peer-review processes. The journal maintains high standards in copy-editing and production, ensuring timely publication and editorial independence. In addition to original research, Nature Astronomy publishes a wide range of content, including Comments, Reviews, News and Views, Features, and Correspondence. This diverse collection covers various disciplines within astronomy and includes contributions from a diverse range of voices.
期刊最新文献
Europa’s ice thickness and subsurface structure characterized by the Juno microwave radiometer Drawing on the full diversity of mind Neurodivergent in astronomy: the early-career researcher edition Neurodivergent in astronomy: the advanced-career researcher edition Challenges in the detection of gases in exoplanet atmospheres
×
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
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术
文献互助 智能选刊 最新文献 互助须知 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 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1