Infrared Magnetograph at Big Bear Solar Observatory

Details Infrared Magnetograph at Big Bear Solar Observatory Infrared Magnetograph at Big Bear Solar Observatory

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001stin...0215955g&link_type=abstract

Technical Report, AD-A396344; AFRL-SR-BL-TR-01-0548

Physics

Magnetic Fields, Solar Corona, Magnetic Drums, Infrared Instruments, Infrared Radiation, Solar Activity, Magnetic Signatures, Fabry-Perot Interferometers, Evolution (Development), Solar Observatories

Scientific paper

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.

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