Numerical determination of the modulation transfer function from observations of granulation outside the disk centre.

Hidalgo, I. R.; Collados, M.
Bibliographical reference

10. Sacramento Peak Summer Workshop: High spatial resolution solar observations, p. 203 - 207

Advertised on:
8
1989
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
A spectral ratio, similar to that of von der Lühe (1984), is proposed to derive information on the degradation of the mean granular power spectrum at a position outside the disk centre. It has the advantage that the modulation transfer function is obtained directly from the data, without making any assumption on turbulence theory to describe the atmospheric behaviour.