On the Combination of Differential Emission Measure Analysis and Rotational Tomography for Three‐dimensional Solar EUV Imaging

2005 ◽  
Vol 628 (2) ◽  
pp. 1070-1080 ◽  
Author(s):  
R. A. Frazin ◽  
F. Kamalabadi ◽  
M. A. Weber
2011 ◽  
Vol 7 (S286) ◽  
pp. 123-133
Author(s):  
Alberto M. Vásquez ◽  
Richard A. Frazin ◽  
Zhenguang Huang ◽  
Ward B. Manchester ◽  
Paul Shearer

AbstractDifferential emission measure tomography (DEMT) makes use of extreme ultraviolet (EUV) image series to deliver two products: a) the three-dimensional (3D) reconstruction of the coronal emissivity in the instrumental bands, and b) the 3D distribution of the local differential emission measure (LDEM). The LDEM allows, in turn, construction of 3D maps of the electron density and temperature distribution. DEMT is being currently applied to the space-based EUV imagers, allowing reconstruction of the inner corona in the height range 1.00 to 1.25 R⊙. In this work we applied DEMT to different Carrington Rotations corresponding to the last two solar Cycle minima. To reconstruct the 2008 minimum we used data taken by the Extreme UltraViolet Imager (EUVI), on board the Solar TErrestrial RElations Observatory (STEREO) spacecraft, and to reconstruct the 1996 minimum we used data taken by the Extreme ultraviolet Imaging Telescope (EIT), on board the Solar and Heliospheric Observatory (SOHO). We show here comparative results, discussing the observed 3D density and temperature distributions in the context of global potential magnetic field extrapolations. We also compare the DEMT results with other observational and modeling efforts of the same periods.


2007 ◽  
Vol 3 (S247) ◽  
pp. 326-336
Author(s):  
Antonia Savcheva ◽  

AbstractIn this review we present a short introduction to the X-ray Telescope on Hinode. We discuss its capabilities and new features and compare it with Yohkoh SXT. We also discuss some of the first results that include observations of X-ray jets in coronal holes, shear change in flares, sigmoid eruptions and evolution, application of filter ratios and differential emission measure analysis, structure of active regions, fine structure of X-ray bright points, and modeling non-potential fields around filaments. Finally, we describe how XRT works with other ground and space-based instrumentation, in particular with TRACE, EIS, SOT, and SOLIS.


2020 ◽  
Vol 891 (1) ◽  
pp. 78 ◽  
Author(s):  
P. S. Athiray ◽  
Juliana Vievering ◽  
Lindsay Glesener ◽  
Shin-nosuke Ishikawa ◽  
Noriyuki Narukage ◽  
...  

1984 ◽  
Vol 4 (7) ◽  
pp. 203-207 ◽  
Author(s):  
J. Jakimiec ◽  
J. Sylwester ◽  
J.R. Lemen ◽  
R. Mewe ◽  
R.D. Bentley ◽  
...  

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