Differential Emission Measure and Iron-to-Calcium Abundance in Solar Flare Plasmas

1995 ◽  
Vol 451 ◽  
pp. 402 ◽  
Author(s):  
Ester Antonucci ◽  
Renato Martin
Keyword(s):  
Solar Flare ◽  
Emission Measure ◽  
Differential Emission Measure

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.

scholarly journals ON THE ACCURACY OF THE DIFFERENTIAL EMISSION MEASURE DIAGNOSTICS OF SOLAR PLASMAS. APPLICATION TO SDO /AIA. II. MULTITHERMAL PLASMAS

2012 ◽  
Vol 203 (2) ◽  
pp. 26 ◽  
Author(s):  
C. Guennou ◽  
F. Auchère ◽  
E. Soubrié ◽  
K. Bocchialini ◽  
S. Parenti ◽  
...  
Keyword(s):  
Emission Measure ◽  
Differential Emission Measure ◽  
Solar Plasmas

Analysis of the differential emission measure distributions for solar flares observed by RESIK

2018 ◽  
Vol 179 ◽  
pp. 545-552
Author(s):  
A. Kepa ◽  
B. Sylwester ◽  
J. Sylwester ◽  
M. Gryciuk ◽  
M. Siarkowski
Keyword(s):  
Solar Flares ◽  
Emission Measure ◽  
Differential Emission Measure

scholarly journals Energetics of Hi-C EUV brightenings

2018 ◽  
Vol 615 ◽  
pp. A47 ◽  
Author(s):  
Srividya Subramanian ◽  
Vinay L. Kashyap ◽  
Durgesh Tripathi ◽  
Maria S. Madjarska ◽  
John G. Doyle
Keyword(s):  
High Resolution ◽  
Energy Loss ◽  
Extreme Ultraviolet ◽  
Thermal Structure ◽  
Emission Measure ◽  
Light Curves ◽  
Solar Dynamics Observatory ◽  
Differential Emission Measure ◽  
Dominant Mechanism ◽  
Solar Dynamics

We study the thermal structure and energetics of the point-like extreme ultraviolet (EUV) brightenings within a system of fan loops observed in the active region AR 11520. These brightenings were simultaneously observed on 2012 July 11 by the High-resolution Coronal (Hi-C) imager and the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO). We identified 27 brightenings by automatically determining intensity enhancements in both Hi-C and AIA 193 Å light curves. The energetics of these brightenings were studied using the Differential Emission Measure (DEM) diagnostics. The DEM weighted temperatures of these transients are in the range log T(K) = 6.2−6.6 with radiative energies ≈1024−25 ergs and densities approximately equal to a few times 109 cm−3. To the best of our knowledge, these are the smallest brightenings in EUV ever detected. We used these results to determine the mechanism of energy loss in these brightenings. Our analysis reveals that the dominant mechanism of energy loss for all the identified brightenings is conduction rather than radiation.

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