Paschen-Back effect involving atomic fine and hyperfine structure states
Informazioni aggiuntive
Autori
Sowmya K.,
Nagendra K.,
Sampoorna M.,
Stenflo J. O.
Tipo
Contributo in atti di conferenza
Anno
2015
Lingua
Inglese
Abstract
The linear polarization in spectral lines produced by coherent scattering is significantly modified by the quantum interference between the atomic states in the presence of a magnetic field. When magnetic fields produce a splitting which is of the order of or greater than the fine or hyperfine structure splittings, we enter the Paschen-Back effect (PBE) regime, in which the magnetic field dependence of the Zeeman splittings and transition amplitudes becomes non-linear. In general, PBE occurs for sufficiently strong fields when the fine structure states are involved and for weak fields in the case of hyperfine structure states. In this work, we apply the recently developed theory of PBE in the atomic fine and hyperfine structure states including the effects of partial frequency redistribution to the case of Li i 6708 Å doublet. We explore the signatures of PBE in a single scattering event and their applicability to the solar magnetic field diagnostics.
Atti di conferenza
Polarimetry
Collana
IAU Symposium
Pagina inizio
154
Pagina fine
158
Parole chiave
irsol-conference-proceedings
