Infrared Magnetograph at Big Bear Solar Observatory
Abstract
With the support of DURIP funding, we have developed the hardware leading to the world's only filter-based magnetograph for the near IR. The heart of such a system includes a Fabry-Perot filter following a prefilter which is sufficiently narrow to ensure that it knocks out all the side bands of the Fabry-Perot (i.e. the filter's pass band is narrower than the free spectral range of the Fabry Perot) . The required IR Fabry-Perot system exists; we have purchased one from the Queens-gate with DURIP funds. Nonetheless, there are no such magnetographs, at present, for measuring the evolution of magnetic fields in IR.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- March 2001
- Bibcode:
- 2001STIN...0215955G
- Keywords:
-
- Magnetic Fields;
- Solar Corona;
- Magnetic Drums;
- Infrared Instruments;
- Infrared Radiation;
- Solar Activity;
- Magnetic Signatures;
- Fabry-Perot Interferometers;
- Evolution (Development);
- Solar Observatories;
- Astrophysics