2013.09.26 Weak field approximation

2013.09.26Weak field approximationE-bookhttp://link.springer.com/book/10.1007/1-4020-2415-0/page/1SPS-IDE-bookPolarization in Spectral Lines E.Landi Deglinnocenti

9.6The Weak Field ApproximationDSTCa II KSwedish Solar Telescope / CRISPCa II K full StokesSolar-C He I 10830, Ca II 8542, H 6563 http://hinode.nao.ac.jp/SOLAR-C/Meeting/SCSDM2/katsukawa2.pdfSolar Orbiter(2017-2018)Fe I 617.3nm

Fe I 1564.8nm201392008http://www.kwasan.kyoto-u.ac.jp/swss08/index.html

When the Zeeman splitting is much smaller than the typical width of the profiles, it is possible to deduce some properties of the solutions to the transfer equation without actually solving it. The above condition means g vH