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Spectral investigation of the chromosphere

✍ Scribed by U. Grossmann-Doerth; Marina Uexküll

Book ID
104644695
Publisher
Springer
Year
1977
Tongue
English
Weight
537 KB
Volume
55
Category
Article
ISSN
0038-0938

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✦ Synopsis

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 correspond to Beckers' Cloud Model (BCM). Moreover, the BCM parameters of the dark mottles at the limb appear to be approximately equal to those from the center of the disk. On the other hand, we also obtained evidence in disagreement with the general applicability of the BCM to all features of the chromospheric fine structure.

We attempted to present the large set of observational data in a fashion that permits their interpretation by alternative theoretical models. * Mitteilungen aus dem Fraunhofer Institut Nr. 151.

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