Loading...
Please wait, while we are loading the content...
Similar Documents
Cascade model of coronal heating
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Vanballegooijen, A. A. |
| Copyright Year | 1986 |
| Description | It is suggested that the quasi-static evolution of coronal magnetic structures is characterized by a cascade of magnetic energy to smaller length scales. This cascade process takes place on a time scale t sub b determined entirely by the photospheric motions. The Ohmic heating rate E sub H in the statistically stationary state was estimated using observational data on the diffusivity of photospheric motions; E sub H turned out to be too small by a factor of 40 when compared with observed coronal energy losses. However, given the fact that the theoretical estimate is based on a rather uncertain extrapolation to the diffusive regime, current heating cannot be ruled out as a viable mechanism of coronal heating. |
| File Size | 345928 |
| Page Count | 5 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19870011505 |
| Archival Resource Key | ark:/13960/t6vx57p9m |
| Language | English |
| Publisher Date | 1986-12-01 |
| Access Restriction | Open |
| Subject Keyword | Solar Physics Photosphere Solar Corona Cascade Flow Fourier Transformation Magnetostatics Coronal Loops Heating Mathematical Models Topology Magnetic Fields Energy Transfer Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
