Published April 14, 1980
| Version v1
Journal article
Center-to-limb solar observations of the K2 component of the Ca II K line with OSO 8 satellite
- 1. Centre National de la Recherche Scientifique, 75 - Paris (France). Inst. d'Astrophysique
- 2. Observatoire de Paris, Section de Meudon, 92 (France)
- 3. L.P.S.P., 91 - Verrieres-le-Buisson (France)
Description
We show some observations of the K line of Ca II and the center-to-limb variation of the emission peaks separation Δlambda2. The departure between the values obtained in the quiet sun and in plages is not very important for μ>0.2, which confirms some previous results. On the other hand, close to the limb, Δlambda2 increases much more in plages than in the quiet sun
Abstract (French)
Nous presentons quelques observations de la raie K de Ca II et montrons la variation centre-bord de Δlambda2, separation des pics d'emission. L'ecart entre les mesures faites sur le soleil calme et sur les facules n'est pas tres important pour μ>0,2, ce qui confirme des resultats anterieurs. Par contre, a l'extreme bord solaire, Δlambda2 croit beaucoup plus dans les facules que dans le soleil calmeAdditional details
Additional titles
- Original title (French)
- Observations entre le centre et le bord du soleil de la composante K
Publishing Information
- Journal Title
- C. R. Seances Acad. Sci., Ser. B
- Journal Volume
- 290
- Journal Issue
- 14
- Series
- C. R. Seances Acad. Sci., Ser. B.
- Journal Page Range
- 365-367
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 11556965
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CALCIUM; EMISSION SPECTRA; SUN
- Descriptors DEC
- ALKALINE EARTH METALS; ELEMENTS; MAIN SEQUENCE STARS; METALS; SPECTRA; STARS