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European Solar Telescope: Progress status
Author(s) -
Collados M.,
Bettonvil F.,
Cavaller L.,
Ermolli I.,
Gelly B.,
Pérez A.,
SocasNavarro H.,
Soltau D.,
Volkmer R.
Publication year - 2010
Publication title -
astronomische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.394
H-Index - 63
eISSN - 1521-3994
pISSN - 0004-6337
DOI - 10.1002/asna.201011386
Subject(s) - telescope , solar telescope , adaptive optics , physics , polarimetry , optics , azimuth , optical path , angular resolution (graph drawing) , active optics , remote sensing , polarization (electrochemistry) , scattering , geology , chemistry , mathematics , combinatorics
In this paper, the present status of the development of the design of the European Solar Telescope is described. The telescope is devised to have the best possible angular resolution and polarimetric performance, maximizing the throughput of the whole system. To that aim, adaptive optics and multi‐conjugate adaptive optics are integrated in the optical path. The system will have the possibility to correct for the diurnal variation of the distance to the turbulence layers, by using several deformable mirrors, conjugated at different heights. The present optical design of the telescope distributes the optical elements along the optical path in such a way that the instrumental polarization induced by the telescope is minimized and independent of the solar elevation and azimuth. This property represents a large advantage for polarimetric measurements. The ensemble of instruments that are planned is also presented (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)