Coronal bright points in mircrowaves.
Abstract
An excellent map of the quiet Sun showing coronal bright points at 20 cm wavelength was produced using the VLA on February 13, 1987. The authors studied the locations of bright points relative to features on the photospheric magnetogram and Ca+K spectroheliogram. They find that most bright points appearing in the full 5-hour synthesized map are associated with small bipolar structures on the photospheric magnetogram; and the brightest part of a B.P. tends to lie on the boundary of a supergranulation network. The bright points exhibit rapid variations in intensity superposed on an apparently slow variation.
- Publication:
-
Solar and Stellar Coronal Structure and Dynamics
- Pub Date:
- 1988
- Bibcode:
- 1988sscd.conf...89K
- Keywords:
-
- Brightness Temperature;
- Magnetic Signatures;
- Microwave Spectra;
- Solar Corona;
- Spectroheliographs;
- Very Large Array (Vla);
- Solar Granulation;
- Solar X-Rays;
- Solar Physics;
- Solar Corona: Bright Points;
- Solar Corona: Microwave Radiation