Removing instrumental polarization from infrared solar polarimetric observations |
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| Authors: | J R Kuhn K S Balasubramaniam G Kopp M J Penn A J Dombard H Lin |
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| Institution: | (1) National Solar Observatory, Sunspot, Tucson, NM, AZ, USA;(2) Haverford College, Haverford, PA, USA;(3) Big Bear Solar Observatory, CalTech, Pasadena, CA, USA |
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| Abstract: | Full Stokes polarimetry is obtained using the National Solar Observatory Vacuum Tower Telescope at Sacramento Peak while observing the magnetically sensitive infrared Fei line at wavelength of 1.56 . A technique is described which makes use of the high magnetic resolution in this spectral range to remove instrumental polarization from observed StokesQ, U, andV line profiles.Supported under a USAF/AFOSR research initiative.Operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation. |
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