Christoph Keller is a full Professor of Experimental Astrophysics at the Leiden Observatory. His research centers around polarized light.

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Christoph Keller’s interests can be grouped into three areas: solar physics, exoplanetary systems and instrumentation in general. In solar physics, Keller uses observations of the Sun in polarized light to learn more about its magnetic field. Polarized light is also used to characterize exoplanets around other stars as well as solar system bodies that orbit around our Sun. The polarimetry technology developed for astronomical purposes is then also used to develop advanced instruments to remotely measure aerosols in the Earth’s atmosphere and biomedical analyses.

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