High Resolution 2D-Spectroscopy of the Sun
Abstract
With the "Goettingen" Fabry-Perot interferometer which is installed at the Vacuum Tower Telescope in Izana, Tenerife the non-magnetic FeI 5576 A line was scanned in a field of quiet granulation at solar disk center. From the simultaneously obtained broad band images an instantaneous optical transfer function (OTF) of the Earth's atmosphere was computed with speckle interferometric methods. Restoring the narrow band data from this OTF the spatial resolution of the two-dimensional spectra was successfully enhanced by a factor of two.
- Publication:
-
Hvar Observatory Bulletin
- Pub Date:
- 2000
- Bibcode:
- 2000HvaOB..24...89H