activity
20072026
most citedThree-dimensional structure of a sunspot light bridge

54 citations · 506 across the 30 of their papers we have counts for

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Showing astro-ph.IMShow all

9 papers · 1 filter

astro-ph.IM2026★ 7 cited

Sunrise III: The Wavefront Correction System

Thomas Berkefeld, Alexander Bell, Reiner Volkmer +19

This paper describes the wave-front correction and image stabilisation system (CWS) developed for the Sunrise III balloon-borne telescope, and provides information about its perfor…

astro-ph.IM2025★ 32 cited

Sunrise III: Overview of Observatory and Instruments

Andreas Korpi-Lagg, Achim Gandorfer, Sami K. Solanki +117

In July 2024, Sunrise completed its third successful science flight. The Sunrise III observatory had been upgraded significantly after the two previous successful flights in 2009 a…

astro-ph.IM2020★ 36 cited

GREGOR: Optics Redesign and Updates from 2018-2020

Lucia Kleint, Thomas Berkefeld, Miguel Esteves +6

The GREGOR telescope was inaugurated in 2012. In 2018, we started a complete upgrade, involving optics, alignment, instrumentation, mechanical upgrades for vibration reduction, upd…

astro-ph.IM2013★ 26 cited

The GREGOR Fabry-Pérot Interferometer and its companion the Blue Imaging Solar Spectrometer

Klaus G. Puschmann, Carsten Denker, Horst Balthasar +6

The GREGOR Fabry-Pérot Interferometer (GFPI) is one of three first-light instruments of the German 1.5-meter GREGOR solar telescope at the Observatorio del Teide, Tenerife, Spain.…

astro-ph.IM2012★ 8 cited

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…

astro-ph.IM2012★ 51 cited

The GREGOR Fabry-Pérot Interferometer

K. G. Puschmann, C. Denker, F. Kneer +18

The GREGOR Fabry-Pérot Interferometer (GFPI) is one of three first-light instruments of the German 1.5-meter GREGOR solar telescope at the Observatorio del Teide, Tenerife, Spain.…