Loading...
Please wait, while we are loading the content...
Similar Documents
Loop interaction in the visible emission corona: morphological details
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Zhang, Zhenda Smartt, Raymond N. |
| Copyright Year | 1987 |
| Description | Coronagraph observations of two post flare loop systems, recorded photographically in the emissions of Fe 14 (5303 A) and Fe 10 (6374 A), show occasional enhancements at the intersections of some loops. The brightness of such enhancements in the green line gradually increases to a maximum value several times greater than that of the legs of the loops and then declines with a typical lifetime approx. 30 to 60 min. In red line emission the loop systems are usually very faint, but show the same overall type of enhancement, with a lag in maximum brightness relative to that of the green line approx. 10 min. The electron density, derived from the cooling time, is approx. 10 to the 12th power/cu cm. |
| File Size | 307177 |
| Page Count | 4 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19880002240 |
| Archival Resource Key | ark:/13960/t9k40pf5f |
| Language | English |
| Publisher Date | 1987-09-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Solar Spectra Solar Flares Coronal Loops Solar Granulation Electron Density Concentration Emission Spectra Spectrum Analysis Iron Line Spectra Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
