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

1990 ◽  
Vol 358 ◽  
pp. 665 ◽  
Author(s):  
G. A. Doschek ◽  
A. Fludra ◽  
R. D. Bentley ◽  
J. Lang ◽  
K. J. H. Phillips ◽  
...  
Keyword(s):  
Solar Flare ◽  
Spectral Line ◽  
Atomic Physics ◽  
Line Intensity ◽  
Emission Measure ◽  
Spectral Line Intensity ◽  
Temperature Differential ◽  
Differential Emission Measure ◽  
X Ray ◽  
Intensity Ratios

Changes in the spectral line intensity ratios arising from the luminescence of terbium and dysprosium ions in solutions of various complexes

1975 ◽  
Vol 23 (5) ◽  
pp. 1484-1487 ◽  
Author(s):  
L. I. Kononenko ◽  
S. V. Bel'tyukova ◽  
S. A. Gava ◽  
V. N. Drobyazko ◽  
N. S. Polu�ktov
Keyword(s):  
Spectral Line ◽  
Line Intensity ◽  
Spectral Line Intensity ◽  
Intensity Ratios

Effects of autoionizing resonances on density-sensitive spectral-line intensity ratios in high-temperature plasmas

1990 ◽  
Vol 41 (2) ◽  
pp. 1041-1057 ◽  
Author(s):  
V. L. Jacobs ◽  
P. L. Hagelstein ◽  
M. H. Chen ◽  
R. Minner ◽  
J. F. Seely
Keyword(s):  
High Temperature ◽  
Spectral Line ◽  
Line Intensity ◽  
Spectral Line Intensity ◽  
Intensity Ratios

Regularized Reconstruction of the Differential Emission Measure from Solar Flare Hard X-Ray Spectra

Solar Physics ◽  
2006 ◽  
Vol 237 (1) ◽  
pp. 61-83 ◽  
Author(s):  
M. Prato ◽  
M. Piana ◽  
J. C. Brown ◽  
A. G. Emslie ◽  
E. P. Kontar ◽  
...  
Keyword(s):  
Solar Flare ◽  
Emission Measure ◽  
Differential Emission Measure ◽  
X Ray

scholarly journals Multitemperature analysis of solar flare observed on 2003 March 29

2015 ◽  
Vol 11 (S320) ◽  
pp. 86-88 ◽  
Author(s):  
Anna Kepa ◽  
Barbara Sylwester ◽  
Janusz Sylwester ◽  
Marek Siarkowski ◽  
Tomasz Mrozek ◽  
...  
Keyword(s):  
Solar Flare ◽  
Energy Content ◽  
Emission Measure ◽  
Physical Parameters ◽  
X Rays ◽  
Differential Emission Measure ◽  
X Ray ◽  
Temperature Diagnostics ◽  
Thermal Energy Content ◽  
Class Flare

AbstractWe present results of multitemperature analysis of GOES C7.2 class flare SOL2003-03-29T10:15. This event occurred close to the centre of the solar disk and had two maxima in soft X-rays. We have performed analysis of physical parameters characterizing evolution of conditions in the flaring plasma. The temperature diagnostics have been carried out using the differential emission measure (DEM) approach based on the soft X-ray spectra collected by RESIK Bragg spectrometer. Analysis of data obtained by RHESSI provided opportunity to estimate the volume and thus calculating the density and thermal energy content of hot flaring plasma.

The relative intensities of nitrogen lines in the semi-coronal regime

1973 ◽  
Vol 9 (1) ◽  
pp. 77-88 ◽  
Author(s):  
W. A. Cilliers ◽  
J. D. Hey ◽  
J. P. S. Rash
Keyword(s):  
Spectral Line ◽  
Electron Temperature ◽  
Electron Density ◽  
Line Intensity ◽  
Intensity Ratio ◽  
Spectral Lines ◽  
Spectral Line Intensity ◽  
Line Intensity Ratio ◽  
Ratio Data ◽  
Intensity Ratios

At plasma densities lower than about 1018 cm-3, strictly speaking, the LTE model cannot be used when the electron temperature is calculated from measured spectral line intensity ratios. In this work a number of nitrogen spectral lines were studied at an electron density of about 1016 cm-3, and the results are discussed with reference to the LTE and semi-coronal models. A method is suggested for analyzing line intensity ratio data from plasmas in the semi-coronal regime.

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