Interpretation of microwave active region structures using SMM soft X-ray observations
Abstract
The purpose of this paper is to investigate the roles played by the geometrical effect of gyroresonance absorption and by the low-temperature (<106K) flux tubes above sunspot regions with microwave ring structures, by combining WSRT 6 cm observations with the X-ray observations made with the X-ray Polychromator on the SMM satellite. Some features associated with Hale regions 16863 and 16864 are analyzed from observations on 1980 May 25 and 26 combined with model computations of the radio emission. The nature of a cool and compact coronal feature seen in soft X-rays, which corresponded to some interesting microwave and magnetic features, is also examined. Finally, the origin of the X-ray and radio emission associated with neutral lines of the magnetic field is considered.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1984
- DOI:
- 10.1086/161757
- Bibcode:
- 1984ApJ...277..865S
- Keywords:
-
- Microwave Emission;
- Solar Flares;
- Solar Maximum Mission;
- Solar X-Rays;
- X Ray Astronomy;
- Brightness Temperature;
- Ring Structures;
- Solar Magnetic Field;
- Solar Radio Emission;
- Solar Physics