Luc Dame

Off-axis Telescopes: Corona & HAR
• AFSIIC/FOURMI solar facility is introducing minimal
compromises as compared to special purpose solar telescopes:
AFSIIC will be able to study both the solar disk and the solar corona
very near the limb
AFSIIC will have a broad wavelength range coverage from near UV
(0.38 µm) to IR (20 µm)
AFSIIC's large collecting area means high S/N ratios and high sensitivity
AFSIIC's very high resolution outperform all existing facilities allowing
to follow dissipation near process scale with continuity, both with (very
high resolution) and without AO (corona)
AFSIIC's telescope polarization is small, constant (NO COUDÉ train, no
angle variation) and hence largely correctable (< 1%) thanks to limited
telescope opening