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Speckle spectro‐polarimetry of magnetic structures
Author(s) -
Janssen K.,
Kneer F.
Publication year - 2001
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/1521-3994(200112)322:5/6<383::aid-asna383>3.0.co;2-n
Subject(s) - polarimetry , speckle pattern , optics , physics , image resolution , remote sensing , telescope , resolution (logic) , masking (illustration) , spectral resolution , spectral bands , astronomy , spectral line , geology , computer science , artificial intelligence , art , visual arts , scattering
High spatial resolution images with spectral and polarimetric information were obtained with the Vacuum Tower Telescope (VTT), Tenerife, in order to study dynamic small scale structures on the Sun. With the Göttingen Fabry‐Perotinterferometer (FPI) we observed faculae at different cos θ positions on the Sun. Simultaneously with these narrow‐band images, 150 broad‐band images were taken from which high resolution images are calculated with the spectral ratio and the speckle masking methods. With the aid of the transfer functions, gained with the speckle recontruction, the narrow‐band FPI images can be reconstructed as well. Here our first results are presented.