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Paper: Magnetic Field Diagnostic Capability of Solar-B/SOT: Filtergraph Instrument
Volume: 358, Solar Polarization 4
Page: 189
Authors: Ichimoto, K.; Suematsu, Y.; Shimizu, T.; Katsukawa, Y.; Tsuneta, S.; Tarbell, T.D.; Shine, R.A.; Hoffmann, C.M.; Title, A.M.; Lites, B.W.; Elmore, D.F.; Streander, K.V.
Abstract: The Narrowband Filter Instrument (NFI) of the Solar Optical Telescope onboard Solar-B provides 2D magnetograms/Dopplergrams with a tunable Lyot filter (width ∼ 0.1 Å) in 6 selected wavelength bands, and spatial sampling of 0.″08/px. The Zeeman-effect sensitivity of NFI and the detection limits of weak magnetic fields are evaluated for 2 photospheric and 3 chromospheric lines. Magnetic-field retrievability from the NFI observables is studied using synthetic Stokes profiles of Fe I 5250 Å. We find that, with optimized wavelength sampling at 4 positions, the inferred magnetic field is sufficiently accurate under the hypothesis of constant magnetic field and velocity along the LOS.
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