Spectra of several strong lines of sunspots have been obtained with the Echelle spectrograph at the Vacuum Tower Telescope, Sacramento Peak Observatory. With a variety of model atmospheres, Ca II H, K, and 28498 line profiles were calculated using a non-LTE line formation procedure. In the present
Radio bursts above a sunspot
โ Scribed by K Shibasaki
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 275 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0273-1177
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Solar Ha-flares now reported with their distinctive visual features have been statistically examined for a period of about eight years in relation to their different characteristics, flare-burst and flare-sunspot association. Important results obtained are: (i) Integrated intensity changes from the
A study of type II solar radio bursts recorded at 160 MHz by the Culgoora radioheliograph during 1980 to 1982 shows that the radio emission occurs above He filaments rather than above He flares. This suggests that the type II radio emission most probably originates from within a coronal helmet strea