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The determination of the velocity amplitude of the total photospheric motion field

โœ Scribed by N. N. Kondrashova; E. A. Gurtovenko


Publisher
Springer
Year
1974
Tongue
English
Weight
383 KB
Volume
34
Category
Article
ISSN
0038-0938

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๐Ÿ“œ SIMILAR VOLUMES


Some properties of velocity fields in th
โœ Franz-Ludwig Deubner ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Springer ๐ŸŒ English โš– 931 KB

Series of high resolution spectrograms taken simultaneously in three spectral regions were recorded with a lambda meter and subjected to a statistical analysis of the fluctuations of Doppler shift and brightness. (1) The 5-rain oscillations are cenfu'med to be 'evanescent' waves. Their horizontal w

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โœ Franz-Ludwig Deubner ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Springer ๐ŸŒ English โš– 653 KB

Photoelectric measurements of photospheric velocity fields have been carried out with the Sacramento Peak Doppler Zeeman Analyzer. Emphasis was given to long periods and low spatial wavenumbers in deep photospheric layers, where the 5-rain oscillations are less dominant. Multiple or double peaks ca

Micro- and macroturbulent motions and th
โœ C. Jager ๐Ÿ“‚ Article ๐Ÿ“… 1972 ๐Ÿ› Springer ๐ŸŒ English โš– 508 KB

A given motion field in a stellar atmosphere is usually observed through 'filters' defined by line shifts and -broadenings and conventionally called macroturbulence and microturbulence. These 'filters' can be defined and computed exactly, as a function of the wave number of the velocity field (Figu