Elsevier's Dictionary of Symbols and Imagery最新文献

筛选
英文 中文
C C
Elsevier's Dictionary of Symbols and Imagery Pub Date : 2004-01-01 DOI: 10.1163/9789004490444_008
K. Schnorr, V. Mäckel, N. S. Oreshkina, S. Augustin, F. Brunner, Z. Harman, C. Keitel, J. Ullrich, José R. Crespo López-Urrutia
{"title":"C","authors":"K. Schnorr, V. Mäckel, N. S. Oreshkina, S. Augustin, F. Brunner, Z. Harman, C. Keitel, J. Ullrich, José R. Crespo López-Urrutia","doi":"10.1163/9789004490444_008","DOIUrl":"https://doi.org/10.1163/9789004490444_008","url":null,"abstract":"The green coronal line at 530.3 nm was first observed during the total solar eclipse of 1869. Once identified as emitted by Fe xiv, it became clear that this highly charged ion was typical for the range of temperatures found in coronal plasmas, stellar winds, outflows, and accretion disks. Under these conditions of high ionization, the strongest transitions are in the X-ray, extreme ultraviolet, and ultraviolet wavelength range, with only few optical lines. For these so-called forbidden coronal lines, only scarce laboratory data is available, and even advanced atomic theory codes cannot yet predict their wavelengths with the accuracy required for precise absolute velocity determinations of such plasmas. Here we report on a study of the Fe xiv line, a key coronal transition of a highly charged ion, using laser spectroscopy in an electron beam ion trap, obtaining the first laboratory measurement of 530.2801(4) nm for its rest wavelength. The result enables the determination of absolute line shifts and line broadenings in hot turbulent plasmas and astrophysical environments, with an error bar of only 0.24 km s−1. In addition, our measurement provides a much-needed benchmark for advanced atomic structure calculations, which are fundamental for astronomy.","PeriodicalId":186030,"journal":{"name":"Elsevier's Dictionary of Symbols and Imagery","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114213110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
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×
相关产品
×
本文献相关产品
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:604180095
Book学术官方微信