The cloud model employed in the analysis of chromospheric contrast profiles is subject to two criticisms. The source function in the cloud may not be varied independently of the Doppler width in the case of Hc~ and the radiative coupling between the cloud and the underlying atmosphere cannot be igno
Spectroscopic investigation of the chromosphere
✍ Scribed by Ulrich Grossmann-Doerth; Marina Uexküll
- Book ID
- 104646931
- Publisher
- Springer
- Year
- 1973
- Tongue
- English
- Weight
- 213 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0038-0938
No coin nor oath required. For personal study only.
✦ Synopsis
The line profile of Ha as emanating from the interior of supergranular cells was measured at sin 0 = 0, 0.6, 0.8 and 0.9. The measurements are described and the results presented. * Mitteilung aus dem Fraunhofer Institut Nr. 117.
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Several hundred Ha spectrograms from areas close to the solar limb were taken with the 35 cm Coud6 refractor at Anacapri. The 41 spectra with the greatest spatial resolution were selected and analysed. At the supergranular boundaries a considerable fraction of the line profiles were found to corresp
The results of the analysis of 16 Hfl spectra taken with high spatial resolution are presented. The properties of tbe line profile in the boundary regions of supergranular cells (SGB) are described by the statistical distribution functions and correlation coefficients of four parameters which determ