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Prof. Dr. Katja Poppenhäger

Image of Katja Poppenhäger

Katja Poppenhaeger is director of the research branch "Stellar, Solar and Exoplanetary Physics", the leader of the research section on "Stellar Physics and Exoplanets" at AIP and a professor at the University of Potsdam. She investigates exoplanets and their atmospheres, particularly in the environment created by their host stars through irradiation and magnetic effects. Her group uses both observations in several wavelength regimes as well as numerical simulations to increase our understanding of exoplanets and their host stars. For an overview on the various scientific projects her section works on, please go directly to the section website.

Stellar, Solar and Exoplanetary Physics
Director
Stellar Physics and Exoplanets
Section Head
Office: KH/2.25
Phone: +49 331 7499 223
kpoppenhaegernothing@aip.de

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

Publications

Latest refereed publications, retrieved from NASA ADS:

Exploring coronal abundances of M dwarfs at moderate activity levels
Chebly, J. J., Poppenhäger, K., Alvarado-Gómez, J. D., Wood, B. E., 2025
Astronomy and Astrophysics, 695, A165; published March 2025
doi:10.1051/0004-6361/202450209, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
Planetary inward migration as the potential cause of GJ 504's fast rotation and bright X-ray luminosity: New constraints from eROSITA
Pezzotti, C., ... Poppenhaeger, K., 2025
Astronomy and Astrophysics, 694, A179; published February 2025
doi:10.1051/0004-6361/202452580, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
Transit-timing variations in the AU Mic system observed with CHEOPS
Boldog, Á., ... Poppenhaeger, K., ..., 2025
Astronomy and Astrophysics, 694, A137; published February 2025
doi:10.1051/0004-6361/202452699, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
The high-energy environment of the heavy sub-Earth GJ 367 b indicates likely complete evaporation of its atmosphere
Poppenhaeger, K., Ketzer, L., Ilic, N., ..., 2024
Astronomy and Astrophysics, 689, A188; published September 2024
doi:10.1051/0004-6361/202449351, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
Simulated Coronal Mass Ejections on a Young Solar-type Star and the Associated Instantaneous Angular Momentum Loss
Xu, Y., Alvarado-Gómez, J. D., ... Poppenhäger, K., ..., 2024
The Astrophysical Journal, 971, 2, 153; published August 2024
doi:10.3847/1538-4357/ad5845, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
X-ray variability of the triplet star system LTT1445 and evaporation history of the planets around its A component
Rukdee, S., ... Poppenhäger, K., ..., 2024
Astronomy and Astrophysics, 687, A237; published July 2024
doi:10.1051/0004-6361/202449400, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
The corona of a fully convective star with a near-polar flare
Ilin, E., Poppenhäger, K., Stelzer, B., Dsouza, D., 2024
Astronomy and Astrophysics, 687, A138; published July 2024
doi:10.1051/0004-6361/202449541, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets
Constraining stellar tidal quality factors from planet-induced stellar spin-up
Ilić, N., Poppenhaeger, K., Queiroz, A. B., Chiappini, C., 2024
Astronomische Nachrichten, 345, 5, e20230132; published June 2024
doi:10.1002/asna.20230132, NASA ADS
Participating AIP sections and groups: Stellar Physics and Exoplanets, Milky Way and the Local Volume
The PEPSI Exoplanet Transit Survey (PETS) - V. New Na D transmission spectra indicate a quieter atmosphere on HD 189733b
Keles, E., ... Poppenhaeger, K., ... Carroll, T. A., Ilyin, I., Baratella, M., Steffen, M., Strassmeier, K. G., ... Mallonn, M., ..., 2024
Monthly Notices of the Royal Astronomical Society, 530, 4, 4826; published June 2024
doi:10.1093/mnras/stae1097, NASA ADS
The Great Dimming of Betelgeuse: The photosphere as revealed by tomography over the past 15 yr
Jadlovský, D., Granzer, T., Weber, M., ... Strassmeier, K. G., Poppenhäger, K., 2024
Astronomy and Astrophysics, 685, A124; published May 2024
doi:10.1051/0004-6361/202348846, NASA ADS