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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…
The Sunrise Ultraviolet Spectropolarimeter and Imager: Instrument description
A. Feller, A. Gandorfer, B. Grauf +46
The third science flight of the balloon-borne solar observatory Sunrise carries three entirely new post-focus science instruments with spectropolarimetric capabilities, concurrentl…
TuMag: the tunable magnetograph for the Sunrise III mission
J. C. del Toro Iniesta, D. Orozco Suárez, A. Álvarez-Herrero +61
One of the instruments aboard the Sunrise III mission, the Tunable Magnetograph (TuMag), is a tunable imaging spectropolarimeter in visible wavelengths. It is designed to probe the…
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…
Instrumentation for solar spectropolarimetry: state of the art and prospects
Francisco A. Iglesias, Alex Feller
Given its unchallenged capabilities in terms of sensitivity and spatial resolution, the combination of imaging spectropolarimetry and numeric Stokes inversion represents the domina…
Smear correction of highly-variable, frame-transfer-CCD images with application to polarimetry
Francisco A. Iglesias, Alex Feller, K. Nagaraju
Image smear, produced by the shutter-less operation of frame transfer CCD detectors, can be detrimental for many imaging applications. Existing algorithms used to numerically remov…