On the emission of local radio sources at the wavelengths 9.1 and 21 cm during the declining phase of the solar cycle.
Abstract
Spatial peculiarities at the wavelengths 9.1 and 21 cm obtained from radio maps for 1970 - 1973 are investigated. The main results of this work are as follows: the distances between regions of radio emission generation increase at 9.1 and 21 cm during the declining phase of the solar cycle; there are radio sources only on radio maps at the wavelength 21 cm (T21 > 105K) that do not correlate with spot locations and even plage locations; the number of low frequency bursts increases and the number of wide range bursts decreases during the declining phase of the solar cycle. These results indicate an active region re-arrangement during the declining phase that is accompanied by other burst activity.
- Publication:
-
Byulletin Solnechnye Dannye Akademie Nauk SSSR
- Pub Date:
- April 1991
- Bibcode:
- 1991BSolD...4...82I
- Keywords:
-
- Solar Radio Radiation: Solar Activity Cycles