European Solar Telescope: Progress status

Details European Solar Telescope: Progress status European Solar Telescope: Progress status

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010an....331..615c&link_type=abstract

Astronomische Nachrichten, Vol.331, Issue 6, p.615

Physics

Optics

9

Instrumentation: Adaptive Optics, Instrumentation: High Angular Resolution, Instrumentation: Interferometers, Instrumentation: Polarimeters, Instrumentation: Spectrographs, Telescopes

Scientific paper

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.

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