Home News and Announcements Seminars Defenses Archive IMPRS Defenses Archive Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec All All 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 Defense IMPRS PhD IMPRS Defense: Measurement of solar interial modes with ring-diagrams and their importance for solar dynamics (Yash Mandowara) IMPRS Defense Date: Aug 18, 2026 Time: 01:00 PM - 02:30 PM (Local Time Germany) Speaker: Yash Mandowara IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Interpreting Solar Spicules using Synthetic Diagnostics from 3D Radiative Magnetohydrodynamic Simulations (Sanghita Chandra) IMPRS Defense Date: Jul 20, 2026 Time: 01:00 PM - 02:30 PM (Local Time Germany) Speaker: Sanghita Chandra IMPRS Location: TU Braunschweig, Physikzentrum, Mendelssohnstraße 3, MS3.1 Room: MS3.1 Host: Sami Solanki [more] IMPRS Defense: Modelling Magnetic Induction and Lorentz Force-Driven Flows in Europa’s Subsurface Ocean (Ilse de Langen) IMPRS Defense Date: Jun 25, 2026 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Ilse de Langen IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Johannes Wicht [more] IMPRS Defense: Measuring multiscale solar flows using local correlation tracking (Neelanchal Joshi) IMPRS Defense Date: Jun 19, 2026 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Neelanchal Joshi IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Solar inertial modes as probes of rotation and convection (Prithwitosh Dey) IMPRS Defense Date: Jun 15, 2026 Time: 11:00 AM - 12:30 PM (Local Time Germany) Speaker: Prithwitosh Dey IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Calibration of the Jovian Electron and Ion Analyzer (JEI) for the Jupiter Icy Moons Explorer (JUICE) IMPRS Defense Date: Feb 12, 2026 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Patrick Bambach IMPRS Location: Universität Stuttgart Room: - Host: Georg Herdrich [more] IMPRS Defense: Towards solar many-line inversions (Johannes Hölken) IMPRS Defense Date: Nov 24, 2025 Time: 01:00 PM - 02:30 PM (Local Time Germany) Speaker: Johannes Hölken IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sami Solanki [more] IMPRS Defense: Dark features in the solar corona and the underlying magnetic field studied with Solar Orbiter (Jonathan Nölke) IMPRS Defense Date: Jul 17, 2025 Time: 11:00 AM - 12:30 PM (Local Time Germany) Speaker: Jonathan Nölke IMPRS Location: TU Braunschweig, Physikzentrum, Mendelssohnstraße 3, MS 3.2 Room: - Host: Karl-Heinz Glaßmeier [more] IMPRS Defense: Investigating small-scale dynamics: Analysis and Interpretation of Solar Orbiter observations (Ziwen Huang) IMPRS Defense Date: Jul 8, 2025 Time: 03:30 PM - 05:00 PM (Local Time Germany) Speaker: Ziwen Huang IMPRS Location: TU Braunschweig, Physikzentrum, Mendelssohnstraße 3, MS 3.2 Room: MS 3.2 Host: Ferdinand Plaschke [more] IMPRS Defense: Science Preparation for SO/PHI: Building the First Multi-View Synoptic Map with SO/PHI and SDO/HMI (Philipp Löschl) IMPRS Defense Date: May 26, 2025 Time: 01:30 PM - 03:00 PM (Local Time Germany) Speaker: Philipp Löschl IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Aquila + Bootes Host: Sami Solanki [more] IMPRS Defense: Investigation of the activity and physical properties of the active asteroids 324P/La Sagra, 2010 LH15, and 62412 (2000 SY178) (Maria Mastropietro) IMPRS Defense Date: Apr 24, 2025 Time: 09:30 AM - 11:00 AM (Local Time Germany) Speaker: Maria Mastropietro IMPRS Location: TU Braunschweig, Physikzentrum/IGEP, Mendelsohnstraße 3, MS 3.415 Room: MS 3.415 Host: Jessica Agarwal [more] IMPRS Defense: Diagnostics of comprehensive simulations of the chromosphere (Patrick Ondratschek) IMPRS Defense Date: Mar 13, 2025 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Patrick Ondratschek IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sami Solanki [more] IMPRS Defense: Comprehensive simulations of solar prominences (Lisa-Marie Zeßner) IMPRS Defense Date: Mar 10, 2025 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Lisa-Marie Zeßner IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sami Solanki [more] IMPRS Defense: Tracing volatile element fractionations in the early Solar System: Evidence from Ge isotopes in meteorites and planetary bodies (Elias Wölfer) IMPRS Defense Date: Feb 17, 2025 Time: 01:00 PM - 02:30 PM (Local Time Germany) Speaker: Elias Wölfer IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Thorsten Kleine [more] IMPRS Defense: The onset of planet formation inferred from isotope anomalies in meteorites (Fridolin Spitzer) IMPRS Defense Date: Nov 22, 2024 Time: 01:00 PM - 02:30 PM (Local Time Germany) Speaker: Fridolin Spitzer IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Thorsten Kleine [more] IMPRS Defense: Modeling spectral and total solar irradiance variability from any vantage point in the Solar System (Isabela de Oliveira) IMPRS Defense Date: Sep 25, 2024 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Isabela de Oliveira Martins IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sonja Schuh [more] IMPRS Defense: Towards a new view of the photospheric magnetic field with the Polarimetric and Helioseismic Imager on Solar Orbiter (Jonas Sinjan) IMPRS Defense Date: Sep 5, 2024 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Jonas Sinjan IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Aquila + Bootes Host: Sami Solanki [more] IMPRS Defense: Solar spectropolarimetry in orbit: from raw data to physical parameters (Kinga Albert) IMPRS Defense Date: Aug 30, 2024 Time: 03:30 PM - 05:00 PM (Local Time Germany) Speaker: Kinga Albert IMPRS Location: TU Braunschweig, Physikzentrum, Mendelssohnstraße 3, MS 3.3 Room: MS 3.3 Host: Sami Solanki [more] IMPRS Defense: Structuring of the quiet solar corona (Nikolina Milanovic) IMPRS Defense Date: Aug 30, 2024 Time: 01:15 PM - 02:45 PM (Local Time Germany) Speaker: Nikolina Milanović IMPRS Location: TU Braunschweig, Physikzentrum, Mendelssohnstraße 3, MS 3.3 Room: MS 3.3 Host: Sami Solanki [more] IMPRS Defense: Multi‐Spacecraft Solar Surface Stereoscopy: a Method for Direct Estimates of the Wilson Depression from Combined Observations of SO/PHI and SDO/HMI (Amanda Romero Avila) IMPRS Defense Date: Aug 30, 2024 Time: 11:00 AM - 12:30 PM (Local Time Germany) Speaker: Amanda Romero Avila IMPRS Location: TU Braunschweig Host: Sami Solanki [more] IMPRS Defense: Connecting the Dots: Dust Particle Tracking at Comet 67P/Churyumov-Gerasimeko (Marius Pfeifer) IMPRS Defense Date: Jul 3, 2024 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Marius Pfeifer IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Jessica Agarwal [more] IMPRS Defense: Stellar Activity and Radial Velocities in M Dwarfs (Erik Johnson) IMPRS Defense Date: Jun 28, 2024 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Erik Nicolas Johnson IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Stefan Dreizler [more] IMPRS Defense: Chronology of lunar crust formation and its relation to the age of the Moon (Jonas Schneider) IMPRS Defense Date: Jun 19, 2024 Time: 10:30 AM - 12:00 PM (Local Time Germany) Speaker: Jonas Schneider IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Thorsten Kleine [more] IMPRS Defense: Small-scale dynamics and large-scale stability of the outer solar atmosphere (Jamie Gorman) IMPRS Defense Date: May 29, 2024 Time: 09:00 AM - 10:30 AM (Local Time Germany) Speaker: Jamie Gorman IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Hardi Peter [more] IMPRS Defense: Inferring atomic line parameters from solar spectra (Dusan Vukadinovic) IMPRS Defense Date: Jan 23, 2024 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Dusan Vukadinovic IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: MPS seminar rooms E+F+G Host: Sami Solanki [more] IMPRS Defense: Inferring solar interior flows with iterative helioseismic holography (Björn Müller) IMPRS Defense Date: Nov 29, 2023 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Björn Müller IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Distribution and dynamics of aggregates in the coma of 67P/Churyumov-Gerasimenko (Jorge Pablo Lemos Velázquez) IMPRS Defense Date: Nov 22, 2023 Time: 03:00 PM - 04:30 PM (Local Time Germany) Speaker: Jorge Pablo Lemos Velázquez IMPRS Location: TU Braunschweig Room: Room MS3.2, IGeP building, ground floor, Mendelssohnstr. 3, TU Braunschweig Host: Jessica Agarwal [more] IMPRS Defense: Investigations of the solar dynamo within the framework of the Babcock-Leighton mechanism (Simon Cloutier) IMPRS Defense Date: Nov 13, 2023 Time: 02:30 PM - 04:00 PM (Local Time Germany) Speaker: Simon Cloutier IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Numerical Modelling of Zonal Winds on Gas Giants with Magnetic Fields and Stably Stratified Layers (Paula Wulff) IMPRS Defense Date: Oct 25, 2023 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Paula Wulff IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Ulrich Christensen [more] IMPRS Defense: The in-flight radiometric calibration of the Metis coronagraph on-board Solar Orbiter. First results from calibrated images. (Yara de Leo) IMPRS Defense Date: Oct 20, 2023 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Yara De Leo IMPRS Location: Catania (broadcasted at MPS) Host: Luca Teriaca [more] IMPRS Defense: Global scale magnetic field extrapolation in the solar corona using a Yin Yang grid (Argiris Koumtzis) IMPRS Defense Date: Jul 17, 2023 Time: 04:00 PM - 05:30 PM (Local Time Germany) Speaker: Argiris Koumtzis IMPRS Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Hardi Peter [more] IMPRS Defense: The Distribution of Water in the Lunar Magmatic Ocean (Matthias Nieuwenhuis) IMPRS Defense Date: May 10, 2023 Time: 10:30 AM - 12:00 PM (Local Time Germany) Speaker: Matthias Nieuwenhuis Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Urs Mall [more] IMPRS Defense: Single-station inversion of seismic data for the InSight mission to Mars (Rakshit Joshi) IMPRS Defense Date: Dec 8, 2022 Time: 02:00 PM - 04:00 PM (Local Time Germany) Speaker: Rakshit Joshi Location: LMU Host: Heiner Igel [more] IMPRS Defense: Modelling the evolution of small bipolar regions on the Sun (Bernhard Hofer) Date: Nov 17, 2022 Time: 10:00 AM - 11:30 AM (Local Time Germany) Speaker: Bernhard Hofer Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Natalie Krivova [more] IMPRS Defense: Small-scale dynamo in cool-main sequence stars (Tanayveer Singh Bhatia) IMPRS Defense Date: Oct 17, 2022 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Tanayveer Bhatia Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium & Zoom Host: Hardi Peter [more] IMPRS Defense: CMOS Sensors and Polarimetric Studies of the Sun (Kamal Sant) IMPRS Defense Date: Sep 28, 2022 Time: 02:00 PM - 04:00 PM (Local Time Germany) Speaker: Kamal Sant Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sami Solanki [more] IMPRS Defense: The role of fractured terrain on comet 67P for nucleus thermophysics and activity (Sebastian Höfner) IMPRS Defense Date: May 12, 2022 Time: 10:30 AM - 01:00 PM (Local Time Germany) Speaker: Sebastian Höfner Location: TU Braunschweig Host: Jürgen Blum [more] IMPRS Defense: A coronal loop in a box: From energy generation to coronal emission (Cosima Breu) IMPRS Defense Date: Mar 31, 2022 Time: 09:00 AM - 11:00 AM (Local Time Germany) Speaker: Cosima Breu Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Hardi Peter [more] IMPRS Defense: Theory of Solar Oscillations in the Inertial Frequency Range (Yuto Bekki) IMPRS Defense Date: Mar 25, 2022 Time: 10:00 AM - 12:00 PM (Local Time Germany) Speaker: Yuto Bekki Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Strong magnetic fields and unusual flows in sunspots (Juan Sebastian Castellanos Duran) IMPRS Defense Date: Feb 3, 2022 Time: 03:00 PM - 05:00 PM (Local Time Germany) Speaker: Sebastián Castellanos Durán Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Sami Solanki [more] IMPRS Defense: The tilt and twist of emerging solar active regions (Christian Baumgartner) IMPRS Defense Date: Dec 9, 2021 Time: 09:00 AM - 11:00 AM (Local Time Germany) Speaker: Christian Baumgartner Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Learned infinite elements for helioseismology (Janosch Preuss) IMPRS Defense Date: Dec 2, 2021 Time: 02:00 PM - 04:00 PM (Local Time Germany) Speaker: Janosch Preuss Host: Thorsten Hohage [more] IMPRS Defense: Solar surface flows during active region emergence (Nils Gottschling) IMPRS Defense Date: Nov 8, 2021 Time: 11:00 AM - 01:00 PM (Local Time Germany) Speaker: Nils Gottschling Location: Max-Planck-Institut für Sonnensystemforschung Room: Auditorium Host: Laurent Gizon [more] IMPRS Defense: Self-consistent modeling of solar radio emissions from magnetic reconnection (Xin Yao) IMPRS Defense Date: Oct 5, 2021 Time: 03:00 PM - 05:00 PM (Local Time Germany) Speaker: Xin Yao Location: virtuell Host: Michael Lehman [more] IMPRS Defense: Analysis of solar faculae using stray-light-corrected spectropolarimetric data and numerical simulations IMPRS Defense Date: May 31, 2021 Time: 02:00 PM - 03:30 PM (Local Time Germany) Speaker: Sudharshan Saranathan Location: Max-Planck-Institut für Sonnensystemforschung Room: Zoom Host: IMPRS [more] IMPRS Defense: Effect of Density Stratification on Dynamos in Gas Planets and Low-Mass Stars (R. Yadav) IMPRS Defense Date: Jan 23, 2015 Time: 11:00 AM - 12:00 PM (Local Time Germany) Speaker: Rakesh Yadav Location: Max-Planck-Institut für Sonnensystemforschung Room: SR 9 (C4.101) Fakultät für Physik Host: Sonja Schuh Effect of Density Stratification on Dynamos in Gas Planets and Low-Mass Stars [more] IMPRS Defense: Cycle-Related Solar VUV Variability (F. Shakeri) IMPRS Defense Date: Jan 20, 2015 Time: 10:00 AM - 11:00 AM (Local Time Germany) Speaker: Farhad Shakeri Location: Max-Planck-Institut für Sonnensystemforschung Room: SR 17 Fakultät für Physik Host: Sonja Schuh Cycle-Related Solar VUV Variability [more]