This website uses cookies for better user experience. Learn more in our Data protection statement and the Cookies page, where you can also enable/disable individual cookies and services. By continuing to use this site, you consent to our policies.

Prof. Dr. Klaus Strassmeier

Image of Klaus Strassmeier
Stellar Activity
Emeritus
Office: HH/104
Phone: +49 331 7499 295
kstrassmeiernothing@aip.de

Leibniz-Institut
für Astrophysik Potsdam (AIP)
An der Sternwarte 16
14482 Potsdam

Publications

Latest refereed publications, retrieved from NASA ADS:

PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). II. Phase-resolved Cross-correlation Transmission Spectroscopy of KELT-20b
Lenhart, C., ... Strassmeier, K. G., Ilyin, I., 2026
The Astronomical Journal, 171, 2, 81; published February 2026
doi:10.3847/1538-3881/ae2252, NASA ADS
Participating AIP research groups: High-resolution Spectroscopy and Polarimetry (now: Astronomical Spectroscopic Instrumentation), Stellar Activity, Astronomical Spectroscopic Instrumentation
Surface image and activity-corrected orbit of the RSCVn binary HR7275: Disentangling activity tracers
Adebali, Ö., Weber, M., Strassmeier, K. G., Ilyin, I. V., Steffen, M., ..., 2026
Astronomy and Astrophysics, 706, A179; published February 2026
doi:10.1051/0004-6361/202557717, NASA ADS
Does the solar oxygen abundance change over the solar cycle?: An investigation into activity-induced variations in the O I infrared triplet
Pietrow, A. G. M., Baratella, M., Ilyin, I. V., Steffen, M., Strassmeier, K. G., 2026
Astronomy and Astrophysics, 706, L11; published February 2026
doi:10.1051/0004-6361/202557598, NASA ADS
Elemental abundance pattern and temperature inversion on the dayside of HAT-P-70b observed with CARMENES and PEPSI
Guo, B., ... Strassmeier, K. G., Ilyin, I., Lesjak, F., ... Poppenhaeger, K., ..., 2026
Astronomy and Astrophysics, 706, A126; published February 2026
doi:10.1051/0004-6361/202557869, NASA ADS
PEPSI Investigation, Retrieval, and Atlas of Numerous Giant Atmospheres (PIRANGA). IV. High-resolution Phased-resolved Spectroscopy of the Ultra-hot-Jupiter KELT-20 b
Bonidie, V., ... Strassmeier, K., Ilyin, I., 2026
The Astronomical Journal, 171, 1, 34; published January 2026
doi:10.3847/1538-3881/ae21be, NASA ADS
Participating AIP research groups: High-resolution Spectroscopy and Polarimetry (now: Astronomical Spectroscopic Instrumentation), Stellar Activity, Astronomical Spectroscopic Instrumentation
Magnetic activity on the young Sun: A case study of EK Draconis
Görgei, A., ... Järvinen, S. P., Strassmeier, K. G., ..., 2026
Astronomy and Astrophysics, 706, A54; published January 2026
doi:10.1051/0004-6361/202556949, NASA ADS
Participating AIP research groups: Stellar Physics and Exoplanets, Stellar Activity
PEPSI investigation, retrieval, and atlas of numerous giant atmospheres (PIRANGA) ─ III. Composition and winds in the atmosphere of TOI-1518 b
Basinger, C., ... Ilyin, I., Strassmeier, K., 2025
Monthly Notices of the Royal Astronomical Society, 543, 4, 4136; published November 2025
doi:10.1093/mnras/staf1648, NASA ADS
Participating AIP research groups: High-resolution Spectroscopy and Polarimetry (now: Astronomical Spectroscopic Instrumentation), Stellar Activity
Surface activity of a Rossby sequence of cool Hyades stars
Strassmeier, K. G., Ilyin, I., Steffen, M., Barnes, S. A., 2025
Astronomy and Astrophysics, 704, A8; published November 2025
doi:10.1051/0004-6361/202556888, NASA ADS
Participating AIP research groups: Stellar Physics and Exoplanets, High-resolution Spectroscopy and Polarimetry (now: Astronomical Spectroscopic Instrumentation), Stellar Activity
Weakened Magnetic Braking Signals the Collapse of the Global Stellar Dynamo
Metcalfe, T. S., ... Ilyin, I. V., Strassmeier, K. G., 2025
The Astrophysical Journal, 991, 1, L17; published September 2025
doi:10.3847/2041-8213/ae03bc, NASA ADS
Participating AIP research groups: High-resolution Spectroscopy and Polarimetry (now: Astronomical Spectroscopic Instrumentation), Stellar Activity
Four decades of photometry of XX Trianguli, 'the most spotted star' in the sky
Kővári, Z., Strassmeier, K. G., ..., 2025
Astronomy and Astrophysics, 701, A103; published September 2025
doi:10.1051/0004-6361/202555542, NASA ADS
Participating AIP research groups: Stellar Activity