GREGOR: the New German Solar Telescope
Astrophysics
2007-05-23 v1
Abstract
GREGOR is a new open solar telescope with an aperture of 1.5m. It replaces the former 45-cm Gregory Coude telescope on the Canary island Tenerife. The optical concept is that of a double Gregory system. The main and the elliptical mirrors are made from a silicon-carbide material with high thermal conductivity. This is important to keep the mirrors on the ambient temperature avoiding local turbulence. GREGOR will be equipped with an adaptive optics system. The new telescope will be ready for operation in 2008. Post-focus instruments in the first stage will be a spectrograph for polarimetry in the near infrared and a 2-dimensional spectrometer based on Fabry-Perot interferometers for the visible.
Cite
@article{arxiv.0704.2693,
title = {GREGOR: the New German Solar Telescope},
author = {H. Balthasar and O. von der Lühe and F. Kneer and J. Staude and R. Volkmer and T. Berkefeld and P. Caligari and M. Collados and C. Halbgewachs and F. Heidecke and A. Hofmann and M. Klvana and H. Nicklas and E. Popow and K. Puschmann and W. Schmidt and M. Sobotka and D. Soltau and K. Strassmeier and A. Wittmann},
journal= {arXiv preprint arXiv:0704.2693},
year = {2007}
}