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H and K lines in the sunspot umbra: A source function and Doppler width

✍ Scribed by R. B. Teplitskaja; S. A. Efendieva

Publisher
Springer
Year
1975
Tongue
English
Weight
733 KB
Volume
43
Category
Article
ISSN
0038-0938

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πŸ“œ SIMILAR VOLUMES

Shapes and centre-to-limb variation of t
Shapes and centre-to-limb variation of the H and K lines in sunspot umbrae
✍ R. B. Teplitskaja; N. M. Firstova πŸ“‚ Article πŸ“… 1976 πŸ› Springer 🌐 English βš– 614 KB

The shapes of the Ca ii H and K lines in sunspot umbral spectra vary from single asymmetric peaks near the centre of the disk to almost symmetric double peaks at the limb. In addition, there are other differences in the behaviour of both H and K lines in sunspots compared to the quiet Sun. The whole