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On the Shape of H and K Ca II Line Profiles in Sunspot Umbral Spectra

✍ Scribed by V. G. Skochilov; R. B. Teplitskaya

Book ID
110217233
Publisher
Springer
Year
1997
Tongue
English
Weight
278 KB
Volume
173
Category
Article
ISSN
0038-0938

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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