Les développements de Radau et leur divergence : commentaire historique

IF 1.3 4区 物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Comptes Rendus Physique Pub Date : 2023-02-21 DOI:10.5802/crphys.119
L. Dettwiller
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引用次数: 2

Abstract

Résumé. Dans un article primé de 1882, Radau (1835–1911) fait le point sur diverses expressions de la réfraction, dont celle en série entière de la tangente de la distance zénithale apparente. Nous nous focalisons sur l’expression intégrale de ses coe ffi cients, sur l’approximation fondamentale utilisée pour les calculer, et sur l’introduction ultérieure (1906), dans ce but, de multiples familles de hauteurs caractéristiques de l’atmosphère. Nous commentons la divergence, due à l’approximation fondamentale, de la série obtenue dans le cas de l’atmosphère isotherme (donc illimitée). Abstract. In an award-winning 1882 article, Radau (1835–1911) takes stock of various expressions of refraction, including the power series of the tangent of the apparent zenith distance. We focus on the integral expression of its coe ffi cients, on the fundamental approximation used to calculate them, and on the subsequent introduction (1906) for this purpose of multiple families of characteristic heights of the atmosphere. We comment on the divergence, due to the fundamental approximation, of the series obtained in the case of the isothermal atmosphere (therefore unlimited).
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拉多的发展及其分歧:历史评论
摘要。在1882年的一篇获奖论文中,Radau(1835-1911)回顾了各种折射表达式,包括视天顶距离切线的整数系列。我们的重点是其系数的积分表达式、用于计算它们的基本近似值,以及随后(1906年)为此目的引入的大气特征高度的多个族。我们评论了在等温大气(因此是无限的)情况下获得的级数的基本近似引起的发散。摘要。在1882年的一篇获奖文章中,Radau(1835-1911)记录了各种折射表达,包括表观天顶距离切线的功率系列。我们专注于其系数的积分表达式、用于计算它们的基本近似以及随后的介绍(1906年),以实现大气多个特征高度族的目的。我们评论了在等温大气(因此无限)情况下获得的系列由于基本近似而产生的差异。
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来源期刊
Comptes Rendus Physique
Comptes Rendus Physique 物理-天文与天体物理
CiteScore
2.80
自引率
0.00%
发文量
13
审稿时长
17.2 weeks
期刊介绍: The Comptes Rendus - Physique are an open acess and peer-reviewed electronic scientific journal publishing original research article. It is one of seven journals published by the Académie des sciences. Its objective is to enable researchers to quickly share their work with the international scientific community. The Comptes Rendus - Physique also publish journal articles, thematic issues and articles on the history of the Académie des sciences and its current scientific activity. From 2020 onwards, the journal''s policy is based on a diamond open access model: no fees are charged to authors to publish or to readers to access articles. Thus, articles are accessible immediately, free of charge and permanently after publication. The Comptes Rendus - Physique (8 issues per year) cover all fields of physics and astrophysics and propose dossiers. Thanks to this formula, readers of physics and astrophysics will find, in each issue, the presentation of a subject in particularly rapid development. The authors are chosen from among the most active researchers in the field and each file is coordinated by a guest editor, ensuring that the most recent and significant results are taken into account. In order to preserve the historical purpose of the Comptes Rendus, these issues also leave room for the usual notes and clarifications. The articles are written mainly in English.
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