Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Jean-Pierre Rozelot"'
Publikováno v:
Universe, Vol 10, Iss 3, p 107 (2024)
In this study, we performed periodicity analyses of selected daily solar (flare index, coronal index, number of coronal mass ejections), geomagnetic (planetary equivalent range index, disturbance storm time index, interplanetary magnetic field) and c
Externí odkaz:
https://doaj.org/article/f0dfd6372b5940a0b3f22a0b19e5d236
Autor:
Saliha Eren, Jean-Pierre Rozelot
Publikováno v:
The Astrophysical Journal, Vol 942, Iss 2, p 90 (2023)
Recently, Rozelot & Eren pointed out that the first solar gravitational moment ( J _2 ) might exhibit a temporal variation. The suggested explanation is through the temporal variation of the solar rotation with latitude. This issue is deeper develope
Externí odkaz:
https://doaj.org/article/9953f4bb03f54bf2b73385ce20256ea2
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 8, Pp 1-12 (2019)
Abstract We consider a binary system composed of a pulsar and a massive, fast rotating, highly distorted main sequence star of mass M, spin angular momentum $$\mathbf S $$ S , dimensionless mass quadrupole moment $$J_2$$ J2 , equatorial and polar rad
Externí odkaz:
https://doaj.org/article/0cf77d8dca294359afcd87c52f40385a
Autor:
Jean-Pierre Rozelot, E.S. Babayev
This book is based on contributions presented at the first International Conference on Solar Physics which was organized in Baku, Azerbaijan in July 06–08, 2015, by the Science Development Foundation under the President of the Republic of Azerbaija
Autor:
Jean-Pierre Rozelot, Jagdev Singh
Publikováno v:
Journal for the History of Astronomy. 53:300-327
This paper is dedicated to the memory of Jean Rösch, a great figure in astronomy in the years 1947–1981 who designed, among several innovative devices, a 15-cm spectro-coronagraph. This instrument was installed at Pic du Midi observatory (south-we
Autor:
Partha Chowdhury, Volkan Sarp, Ali Kilcik, Pratap Chandra Ray, Jean-Pierre Rozelot, Vladimir N Obridko
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 513:4152-4158
The sunspot cycle waxes and wanes over a period of about 11 years and modulates ‘space weather’. Therefore, predicting the maximum amplitude of the solar cycle is an important goal for both solar physics and space weather. It is clear nowadays th
Autor:
Saliha Eren, Jean-Pierre Rozelot
Recently, Rozelot & Eren pointed out that the first solar gravitational moment (J2) might exhibit a temporal variation. The suggested explanation is through the temporal variation of the solar rotation with latitude. This issue is deeper developed du
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a285cb6ec8b6d7e2d42bee869509d9d0
Publikováno v:
Proceedings of the International Astronomical Union. 15:232-237
Solar oblateness has been the subject of several studies dating back to the nineteenth century. Despite difficulties, both theoretical and observational, tangible results have been achieved. However, variability of the solar oblateness with time is s