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The distribution of maximum temperatures of coronal active region loops
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Mayfield, E. B. Teske, R. G. |
| Copyright Year | 1980 |
| Description | The emission measure distribution across the range 4.5 log T 6.5 was derived for several coronal active regions by combining EUV line fluxes with broadband X-ray fluxes. The distributions of the maximum temperature was then derived using a numerical model. It is shown that the emission measure distribution can be represented over the full range 5.6 log Tm 6.5 by the superposition of simple loop models, if the models incorporate a substantial rise in their individual emission measure distributions near the maximum temperature. The unresolved loops may have substantial area ratios, since it is this ratio that fixes the extent of the rise in the emission measure distribution. Since the bulk of the emission measure is then contributed from the loop tops, the distribution of maximum temperatures has approximately the same shape as does the integrated emission measure distributions. The EUV and X-ray data used were obtained by from two separate experiments on ATM/Skylab. |
| File Size | 1380522 |
| Page Count | 42 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19800020723 |
| Archival Resource Key | ark:/13960/t9q28qq0m |
| Language | English |
| Publisher Date | 1980-05-15 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Tables Data Temperature Distribution Solar Corona Solar Temperature Coronal Loops X Ray Imagery Mathematical Models Extreme Ultraviolet Radiation Plasma Temperature Apollo Telescope Mount Spectroheliographs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
