Luc Dame

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2D Green Line (530 nm) Spectroscopy Solar corona as seen in the “Green Line” (FeXIV, 530.3 nm) with the liquid crystal filter of INAF-Turin (green). Hot “shrouds” (2 million degrees) of ionized iron (Fe +13) surround prominences as observed in singlyionized helium emission (He 30.4 nm) by EIT-SOHO (orange, center image). Fineschi et al., 2010, Total Solar Eclipse French Polynesia
Preparing Next Steps: AFSIIC & A-FOURMI • Current facilities are either very limited in spectroscopy (NSST La Palma) or in spatial resolution (like THEMIS) and with low duty cycle (AO ≤ 1% since cannot "lock" when poor r 0 ) • Next to come (either on-axis or off-axis design) are Gregor 1.5 m and NST 1.6 m but still limited for IR and coronal observations; diffraction limited use is foreseen but with duty cycle problem of AO activation at small r 0 (500 - 600 hours?) • AFSIIC (Antarctica Facility for Solar Interferometric Imaging & Coronagraphy) would outperforms them by diffraction limited resolution @ high duty cycle, polarization, coronal magnetic field measurements (IR) and coronagraphy • Later will be ATST and, possibly, EST or A-FOURMI 4 m class facility… Precursors/demonstrators will show the way
Page 1 and 2: High Resolution Solar Coronagraphic
Page 3 and 4: Seeing and the Ground Boundary Laye
Page 5: …and Disadvantages © Guillaume D
Page 9 and 10: Photometry: nice sky indeed…
Page 11 and 12: Photometric Quality - Transparency
Page 13 and 14: SBM: four filters, at 450 nm, 530 n
Page 15 and 16: Fe XIV - Intensity, Doppler, Waves
Page 17 and 18: • In the framework of the R&D ini
Page 19: LIQUID-CRYSTAL TUNABLE-FILTER POLAR
Page 23 and 24: What Instrumentation? • Exceptio
Page 25 and 26: Thank you! luc.dame@latmos.ipsl.fr
Page 27 and 28: Ø700 mm Marsenne Telescope
Page 29 and 30: SOLARNET Off-Axis Approach • Off
Page 31 and 32: Accessing Free Atmosphere Seeing 0.
Page 34 and 35: Carbon tubes (large ones!)
Page 36 and 37: Log images in the four filters: 450
Page 38 and 39: Site Study of Dome C (Tomasi et al.
Page 40 and 41: Advantages: Dome C vs Space & Groun
Page 42 and 43: Spicules and Alfvén Waves? @ Dome
Page 44 and 45: In summary: Strong Solar Science Ca
Page 46 and 47: ESA/PROBA-3 Mission Concept A coro
Page 48 and 49: Method: 2D Spectroscopy • Superi
Page 50 and 51: HiRISE (High Resolution Imaging and
Page 52 and 53: VISIR — Visible & IR coronagraph

Luc Dame

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