๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Electrical conductivity in sunspots and the quiet photosphere

โœ Scribed by P. Kovitya; L. Cram

Publisher
Springer
Year
1983
Tongue
English
Weight
218 KB
Volume
84
Category
Article
ISSN
0038-0938

No coin nor oath required. For personal study only.

โœฆ Synopsis

The electrical conductivity, thermal conductivity and viscosity of models of the quiet photosphere and the umbra of a sunspot have been calculated using LTE ionization equilibria and the Chapman-Enskog theory of transport coefficients. The results are presented in tabular form, and compared with previous calculations.

๐Ÿ“œ SIMILAR VOLUMES

Electrical conductivity gradients in sun
Electrical conductivity gradients in sunspots
โœ Martin D. Altschuler ๐Ÿ“‚ Article ๐Ÿ“… 1967 ๐Ÿ› Springer ๐ŸŒ English โš– 662 KB

Recently E. H. Schroeter showed that the electrical conductivity of the sunspot umbra, at least in the upper photospheric layers, is about ten-thousand times less than the value used by Cowling. This result implies that electrical conductivity gradients near sunspots may be relatively large. Upon ta

Europium and lanthanum in sunspot and in
Europium and lanthanum in sunspot and in the undisturbed photosphere
โœ G. Bachmann; K. Pflug; J. Staude ๐Ÿ“‚ Article ๐Ÿ“… 1970 ๐Ÿ› Springer ๐ŸŒ English โš– 364 KB

Line profiles of Euli 24129.7 ~ and LalI 24086.7 A, were observed photoelectrically and photographically in the photosphere and within sunspots and after correction were compared with calculated profiles. The observed large hyperfine structure broadening and isotope shift of 24129.7 A\_ confirm the