Scaling Law of Solar Coronal Loops Obtained with YOHKOH
Abstract
We find a clear correlation among the maximum temperature Tmax (K), the pressure p (dyn cm-2) and the length L (cm) of 32 steady coronal loop structures observed with Yohkoh Soft X-Ray Telescope: Tmax = 3.8 × 104 (pL)1/(5.1±0.5). The best-fit equation, however, systematically deviates from the theoretical scaling law Tmax = 1.4 × 103 (pL)1/3 derived by Rosner, Tucker, & Vaiana. We examine various possibilities for the cause of the discrepancy.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- December 1995
- DOI:
- 10.1086/176547
- Bibcode:
- 1995ApJ...454..934K
- Keywords:
-
- MAGNETOHYDRODYNAMICS: MHD;
- SUN: CORONA;
- SUN: X-RAYS;
- GAMMA RAYS