Comparison between Hα and YOHKOH Soft X-Ray Images of Emerging Flux Regions
Abstract
We carried out a detailed comparison between Hα and Yohkoh Soft X-ray (SXR) images of three emerging flux regions. The main results are: (1) In general, SXR bright features coincide well in space with Hα arch filament systems in the emerging flux regions (EFR). (2) Some young and active parts of EFRs are especially bright in SXR. (3) The SXR structures related to EFR show fairly rapid changes in both brightness and shape. These results are consistent with the model that the emerging cool loops of EFRs evolve into hot coronal loops through some heating processes.
- Publication:
-
Publications of the Astronomical Society of Japan
- Pub Date:
- October 1992
- Bibcode:
- 1992PASJ...44L.193K
- Keywords:
-
- H Alpha Line;
- Solar Corona;
- Solar Flux;
- Spaceborne Astronomy;
- X Ray Telescopes;
- Chromosphere;
- Japanese Spacecraft;
- Solar X-Rays;
- Solar Physics;
- SUN: CHROMOSPHERE;
- SUN: CORONA;
- SUN: EMERGING FLUX REGIONS;
- SUN: X-RAYS