Physics – Optics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..395a&link_type=abstract
SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,
Physics
Optics
Adaptive Optics, Spectropolarimetry, Turbulence
Scientific paper
In the context of the increasing interest for large aperture telescope dedicated to the Sun such as EST or ATST projects, we (the Guillaumes) present a study to evaluate the adaptive optics system limitations in regard of the scientific requirements expected for magnetic field extrapolations and data-driven MHD simulations of active regions. The questions we address are: what is the size of the field of view at high spatial resolution for a 4 meter class telescope with a spectrograph, what is the impact of the selected spectral domain on the performances in relation to the scientific goals aforementioned ? We show that the visible wavelength domain still remains difficult to explore with ground-based telescope using a classical adaptive optics system. The field of view obtained will be only few arcsecs at diffraction limit for the most part of the observation time.
Aulanier Guillaume
Molodij Guillaume
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