J
J. Lang
Researcher at Rutherford Appleton Laboratory
Publications - 52
Citations - 4459
J. Lang is an academic researcher from Rutherford Appleton Laboratory. The author has contributed to research in topics: Solar flare & Spectrometer. The author has an hindex of 20, co-authored 51 publications receiving 4129 citations. Previous affiliations of J. Lang include Max Planck Society.
Papers
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Proceedings ArticleDOI
The Extreme UV Imaging Spectrometer for the JAXA Solar-B Mission
J. L. Culhane,George A. Doschek,Tetsuya Watanabe,Alan Smith,Carl W. Brown,Hirohisa Hara,Louise K. Harra,A. M. James,K. Al Janabi,B. J. Kent,Clarence M. Korendyke,J. Lang,John T. Mariska,S. H. Myers,John F. Seely,G. Simnett,J. Tandy,Roger J. Thomas,David L. Windt +18 more
TL;DR: The Extreme-UV Imaging Spectrometer (EISASV) was used in the ISAS/JAXA Solar-B mission as mentioned in this paper to detect photons in the wavelength ranges 17 - 21 nm and 25 - 29 nm.
Journal Article
Structure and dynamics of an active region loop system observed on the solar disc with SUMER on SOHO
TL;DR: In this paper, the authors presented and discussed spectra obtained by SUMER on SOHO from an active region loop system ob- served on the solar disc, close to the central meridian, on July 26th, 1996.
Journal ArticleDOI
On the dependence of solar flare X-ray spectral line intensity ratios of highly ionized sulfur, calcium, and iron on electron temperature, differential emission measure, and atomic physics
TL;DR: In this paper, the spectral lines of highly ionized ions of sulfur, calcium, and iron that appear in solar flare spectra were used to determine the electron temperature independently of the assumption of ionization equilibrium, and an attempt was made to find emission measure models based on selected functional dependences of emission measure on temperature.
Journal ArticleDOI
Transitions between the n = 2 and n = 3 levels of Ne VII in the solar spectrum
TL;DR: Theoretical populations of the 2s3l levels of the solar spectrum for electron temperatures from 2.5 × 105 K to 4 × 106 K and electron densities from 108 cm −3 to 1012 cm−3 were presented in this article, in conjunction with intensities of previously observed solar Ne vii lines and wavelengths and intensities observed in the laboratory.
Journal ArticleDOI
Evidence for the equality of the solar photospheric and coronal abundance of iron
TL;DR: The Fe K-alpha and K-beta X-ray lines (wavelengths 1.94 and 1.76 A) are formed by fluoroescence of photospheric iron atoms, and the ratio of the intensity of either to the He-like iron (Fe XXV) resonance line at 1.85 A is a function of the photosphereto-coronal abundance of iron.