Energetic flare zones on the Sun
β Scribed by V. K. Verma; M. C. Pande; Wahab Uddin
- Book ID
- 104642483
- Publisher
- Springer
- Year
- 1987
- Tongue
- English
- Weight
- 332 KB
- Volume
- 112
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
β¦ Synopsis
In this investigation, we have studied the latitudinal, longitudinal (northern and southern hemispheric) distributions based on 1737 major flares observed during solar cycles 19 and 20 (see subsequent paragraphs) and have arrrived at some interesting results which go to show that as far major flares are concerned latitudewise 1'1-20 ~ belts, and longitudewise 5-8 places are most prolific in producing major flares in each hemisphere. During the above cycles at least 5 flare zones are present in each hemisphere. In fact these zones seem to produce more than 50 % of the total number of energetic flares investigated by us and occupy only < 4% area of the Sun.
π SIMILAR VOLUMES
Regularities in the longitudinal distribution of high-flare-activity active regions during 1964-1979 have been examined. The Fourier spectrum for each 30~ longitude strip in northern and southern hemispheres has been obtained. It is seen that there exist two giant longitude zones in each hemisphere
A peculiar brightening was observed near the centre of the D2 line of NaI on July 28, 1966, in a position where no activity could be seen in the Ha line but where a new important active region formed during the next rotation of the sun. The brightening, first observed at 06:30 UT, progressively fade
The importance of energetic particles in the generation of solar flares and related phenomena has been underestimated if not completely neglected. A reexamination of their role in the light of recent observations carried out during the last solar maximum by a number of experiments on SMM and Hinotor