Ever wonder where cutting-edge solar research happens? Here at the Institut für Sonnenphysik, scientists unravel the sun’s mysteries. It began in 1943 as the Fraunhofer Institute. Karl-Otto Kiepenheuer founded it. He directed it until his death in 1975.
The Institut für Sonnenphysik researches astronomy and astrophysics. Its focus is solar physics. The institute’s name changed over time. It became the Kiepenheuer Institute for Solar Physics in 1978. This honored its founder. In 2018, it was renamed the Leibniz Institute for Solar Physics. Finally, in 2023, it was renamed the Institute for Solar Physics.
Until December 31, 2023, the Institut für Sonnenphysik was a member of the Leibniz Association. This association supports German research institutes. The institute lost its membership due to a negative evaluation. The scientific and instrumentation directors also departed.
The Institut für Sonnenphysik operates solar observing facilities. These benefit both its research and the broader scientific community. Key facilities include German solar telescopes. They are located at the Teide Observatory in Tenerife, Spain. The GREGOR telescope is Europe’s largest solar telescope. The Vacuum Tower Telescope is also vital.
The institute engages with modern observing facilities. These are ground-based, space-borne, and balloon-borne. Examples include the Daniel K. Inouye Solar Telescope and the Sunrise balloon-borne Solar Observatory. The institute also participates in the Solar Orbiter mission. This involves instrument development and scientific analysis.
From the 1940s to 1980s, the institute ran the Schauinsland Observatory. It is near Freiburg. Today, it serves teaching and public outreach. The institute also operated a solar observatory in Anacapri, Capri, Italy. This ran from the 1950s to 1988.
The Institut für Sonnenphysik sought a site for a European solar observatory. Karl-Otto Kiepenheuer played a key role. Tenerife was chosen for its dry weather and stable atmosphere. The Vacuum Tower Telescope began operations in 1989. The Capri outpost closed.
In 2013, the GREGOR Solar Telescope began science operations. It features a 1.5-meter primary mirror. This is at the Teide Observatory.
The Institut für Sonnenphysik has two scientific departments. These are Solar and Stellar Astrophysics and Observatory and Instrumentation. A third department handles administration and technical services.
Scientists at the Institut für Sonnenphysik contribute to university teaching. They supervise student work. They also conduct research. Their work involves solar magnetism and stellar activity. This affects the interplanetary environment. They also provide data management and analysis. The institute also develops telescopes and scientific instruments.
The Leibniz-Institut für Sonnenphysik partners with other institutes. These include the Leibniz Institute for Astrophysics Potsdam. They also include the Max Planck Institute for Solar System Research. Together, they operate solar telescopes at the Teide Observatory.
The GREGOR telescope is Europe’s largest solar telescope. It has a 1.5-meter mirror. It achieves a resolution of 0.1 arcseconds. The Vacuum Tower Telescope uses a coelostat system. It has a 70-centimeter aperture and a 46-meter focal length.
The Schauinsland site features a 45-centimeter refractor. This is also equipped with a coelostat system. It is used for instrument testing and public outreach.
The Institut für Sonnenphysik participates in international projects. These projects focus on solar observation and research. This includes developing scientific instruments. It also includes data analysis.
The institute contributed to the SUNRISE balloon telescope flights. It also helped develop the PHI instrument for the Solar Orbiter. The institute developed the Visible Tunable Filter for the Inouye Solar Telescope.
As you leave the Institut für Sonnenphysik, consider its vital contributions. It continues to push the boundaries of our knowledge of the sun.