High-resolution spectroscopic imaging of the Sun with a Universal Birefringent filter and a Fabry-Perot interferometer.
Abstract
The authors describe an optical device consisting of a Universal Birefringent Filter and a Fabry-Perot interferometer used in tandem to obtain monochromatic images of the Sun in the visible spectrum (between 4200 and 7000 Å). They give an account of the preliminary results obtained by measuring the global velocity field on the solar photosphere. These results show that the instrument is well suited for global oscillation measurements.
- Publication:
-
Nuovo Cimento C Geophysics Space Physics C
- Pub Date:
- October 1992
- DOI:
- 10.1007/BF02507825
- Bibcode:
- 1992NCimC..15..509C
- Keywords:
-
- Birefringence;
- Fabry-Perot Interferometers;
- High Resolution;
- Imaging Spectrometers;
- Optical Filters;
- Spectroheliographs;
- Charge Coupled Devices;
- Solar Instruments