The Hanle and Zeeman Effects in Solar Spicules

Bibcode
2006ASPC..358..448R
Ramelli, R.; Bianda, M.; Merenda, L.; Trujillo Bueno, T.
Bibliographical reference

Solar Polarization 4, ASP Conference Series, Vol. 358, Proceedings of the conference held 19-23 September, 2005, in Boulder, Colorado, USA. Edited by R. Casini and B. W. Lites, p.448

Advertised on:
12
2006
Number of authors
4
IAC number of authors
0
Citations
19
Refereed citations
8
Description
A large set of high precision full-Stokes spectro-polarimetric observations of the He I D3 line in spicules has been recorded with the ZIMPOL polarimeter at the Gregory-Coudé Telescope in Locarno. The observational technique allows us to obtain measurements free from seeing-induced spurious effects. The instrumental polarization is well under control and taken into account in the data analysis. The observed Stokes profiles are interpreted according to the quantum theory of the Hanle and Zeeman effects with the aim of obtaining information on the magnetic field vector. To this end, we make use of a suitable Stokes inversion technique. The results are presented giving emphasis on a few particularly interesting measurements which show clearly the operation of the Hanle and Zeeman effects in solar chromospheric spicules.
Type
Non-refereed

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