Micro-structured magnetic atmospheres

Sánchez Almeida, J.; Landi Degl'Innocenti, E.
Bibliographical reference

Solar Physics, Volume 164, Issue 1-2, pp. 203-210

Advertised on:
3
1996
Journal
Number of authors
2
IAC number of authors
2
Citations
14
Refereed citations
12
Description
Asymmetrical Stokes profiles are produced if the photospheric magnetic and velocity fields are structured on scales smaller than the mean-free-path of the photons. Here we put forward a compact analytical expression for the radiative transfer equation in this case. Explicitly, micro-variations of the magnetic field strength and the velocity are considered. The existence of micro-structures might have serious implications on the techniques currently used to measure solar magnetic fields. For example, we show the failure of the relationship employed to calibrate magnetographs.
Type