Infrared Stokes Polarimeter on the Solar Flare Telescope...
Transcript of Infrared Stokes Polarimeter on the Solar Flare Telescope...
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Infrared Stokes Polarimeter Infrared Stokes Polarimeter on the Solar Flare Telescopeon the Solar Flare Telescope
NAOJ, Mitaka CampusNAOJ, Mitaka Campus
T.SakuraiT.Sakurai
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you are here
Solar Flare Telescope
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original configuration (1991)
Hα white light
vector BFe 6303Å
V//, B//Fe 6337Å
four PhD theses so far
two more coming soon
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current and planned configuration
vector BHα
vector BFe 6303Å
Stokes Polarimeter1.56μm, 1.083μm
ferroelectric liquid crystal modulators
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Hα Full Stokes Polarimetry
Hα MDI BL Hα Full Stokes
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• 15cm aperture• full disk scan (two swaths), 1.75”/pixel• 6.3pm/pixel @1.56 μm, 4.1pm/pixel @1.083 μm • InGaAs camera, 512X640 pixels, 60fps
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IR camera
grating
scan mechanism
off-axis paraboloid
mirror
15cm objective
lens
liquid crystal polarimeter
spectrograph slit
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Fe I 1.56μm
128 pixels
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to be operational in 2006 winter
2005 April 7
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Norikura Solar Observatory, NAOJ
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Green-Line (Fe XIV, 2MK) Doppler Movie(Norikura Solar Observatory, NAOJ)
Coronal Loop Oscillation Excited by a Flare
Intensity Doppler
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period ~ 10-15 min, amplitude ~ 5km/s
K.Hori et al., in preparation