107 citations · 293 across the 8 of their papers we have counts for
6 papers · 1 filter
LARS - An Absolute Reference Spectrograph for solar observations, Upgrade from a prototype to a turn-key system
J. Loehner-Boettcher, W. Schmidt, H. -P. Doerr +4
LARS is an Absolute Reference Spectrograph designed for ultra-precise solar observations. The high-resolution echelle spectrograph of the Vacuum Tower Telescope is supported by a s…
End-to-end simulations of the Visible Tunable Filter for the Daniel K. Inouye Solar Telescope
Wolfgang Schmidt, Matthias Schubert, Monika Ellwarth +9
The Visible Tunable Filter (VTF) is a narrowband tunable filter system for imaging spectroscopy and spectropolarimetry based. The instrument will be one of the first-light instrume…
Comb-calibrated solar spectroscopy through a multiplexed single-mode fiber channel
R A Probst, L Wang, H-P Doerr +7
We investigate a new scheme for astronomical spectrograph calibration using the laser frequency comb at the Solar Vacuum Tower Telescope on Tenerife. Our concept is based upon a si…
A retrospective of the GREGOR solar telescope in scientific literature
C. Denker, O. von der Lühe, A. Feller +33
In this review, we look back upon the literature, which had the GREGOR solar telescope project as its subject including science cases, telescope subsystems, and post-focus instrume…
A Laser Frequency Comb System for Absolute Calibration of the VTT Echelle Spectrograph
H. -P. Doerr, T. Steinmetz, R. Holzwarth +1
A wavelength calibration system based on a laser frequency comb (LFC) was developed in a co-operation between the Kiepenheuer-Institut für Sonnenphysik, Freiburg, Germany and the M…
The Wave-Front Correction System for the Sunrise Balloon-Borne Solar Observatory
T. Berkefeld, W. Schmidt, D. Soltau +21
This paper describes the wave-front correction system developed for the Sunrise balloon telescope, and provides information about its in-flight performance. For the correction of l…