The rotation period of the sun derived from the H and K calcium lines of the prominences
β Scribed by V. Hase; E. Perepelkin
- Publisher
- John Wiley and Sons
- Year
- 1929
- Tongue
- English
- Weight
- 205 KB
- Volume
- 236
- Category
- Article
- ISSN
- 0004-6337
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π SIMILAR VOLUMES
A study of the metallic lines in bright quiescent prominences indicates that the optical thickness in the K line of Ca II may reach values as high as 103. This is about 10 times larger than the optical thickness in the Hc~ line and may explain some peculiarities of the H and K lines in solar promine
We investigate how the rotation of the outer layers of the sun will be influenced by a variable general magnetic field. Applying the resulting formulae to the spectroscopic observations of the velocity of rotation at the solar limb in middle and high latitudes, the variation of the rotational veloci