Seminars at MPS

Interested visitors are very welcome to join in all seminars held and talks given at the MPS. The presentations are mainly given in English. More detailed information can be found at the seminars' pages. Invited guest scientists of other institutes report on the successes and results of their research in institute seminars and colloquia. PhD students of the International Max Planck Research School (IMPRS) present their work in S3 seminars. In the Seminars about Planets and Comets, as well as in the Seminars about the Sun and sunlike Stars, the scientists of the respective departments report on the latest results and progress made in their projects and introduce new missions. All seminars are concluded with a short discussion or a questions-and-answers sessions.
A picture of a part of the limb of the Sun with a large protuberance towering above the surface to the left of the limb

SSGS: The impact of Solar magnetic field configurations on the production of gamma rays at the Solar disk (Julien Dörner)

  • Date: Apr 28, 2026
  • Time: 11:00 AM - 12:00 PM (Local Time Germany)
  • Speaker: Julien Dörner
  • Theoretical Physics IV, Ruhr University Bochum, Germany 2Ruhr Astro, Particle and Plasma Physics Center, Bochum, Germany
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Robert Cameron
Gamma-ray emission from the Sun is thought to be caused by the interaction of high-energy (MeV - TeV) protons in the lower layers of the solar atmosphere, i.e., the chromosphere and photosphere. These high-energy particles can be Galactic Cosmic Rays (GCRs), leading to a steady gamma-ray emission from the solar disk, as well as solar energetic particles (SEPs), accelerated in flares and coronal mass ejections, leading to impulsive and long-duration gamma-ray flares. In both cases, the solar magnetic field configuration is a key ingredient to understand the origins of the gamma-ray emission as observed, e.g., by the Fermi Large Area Telescope (LAT) and the High-Altitude Water Cherenkov Observatory (HAWC).I will discuss the propagation of GCR protons and their gamma-ray production in a comprehensive modeling framework based on the CR- Propa code, which is a well-established tool in high-energy astrophysics. The advantage of this approach is that the proton transport and gamma- ray production can be studied with a single, unified code by following individual particle trajectories and testing their interactions in a Monte Carlo approach. I will present the resulting distribution of gamma-ray pro- duction on the Solar surface and its connection to the coronal magnetic field configuration. Finally, I will discuss the spectral energy distribution of gamma rays, covering four orders of magnitude in energy, and predict the correlated neutrino signal and its detection probability with current detectors like IceCube. [more]
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Non-thermal widths in the solar corona using the MURaM simulation (Arjun Kannan)

S3 Seminar
  • Date: Apr 29, 2026
  • Time: 02:00 PM - 02:30 PM (Local Time Germany)
  • Speaker: Arjun Kannan
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Evershed-Flow: A Stereoscopic Study (David Ivens)

S3 Seminar
  • Date: Apr 29, 2026
  • Time: 02:30 PM - 03:00 PM (Local Time Germany)
  • Speaker: David Ivens
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: The Effective Formation Height in Solar (M-E) Inversions (Jude Simmons)

S3 Seminar
  • Date: Apr 29, 2026
  • Time: 03:00 PM - 03:30 PM (Local Time Germany)
  • Speaker: Jude Simmons
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: Deciphering the iron isotope anomalies of the refractory inclusion reservoir: Insight from AOAs in CV chondrites (Maxime Piralla)

Planetary Science Seminar
  • Date: May 4, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Maxime Piralla
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann

MPS Seminar: Exoplanet interiors and atmospheres: reading the histories of worlds beyond the solar system (Yamila Miguel)

  • Date: May 7, 2026
  • Time: 11:00 AM - 12:00 PM (Local Time Germany)
  • Speaker: Yamila Miguel
  • University Leiden, NL
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Johannes Wicht
Künstlerische Darstellung von Erde und Sonne von hinter der Erde aus gesehen. Der größte Teil des Bildes wird von einem Viertel der Erscheibe eingenommen, die aus dem unteren rechten Bildrand über die Bildmitte hinaus hineinragt. Links oberhalb davon schaut eine teilweise verdeckte fast vollständige Sonnenscheibe heraus.

Im Feuerwerk der Sonne: Wenn die Sonne tobt: Auf den Spuren der stärksten Sonnenstürme des Holozäns (Natalie Krivova)

Öffentlicher Vortrag
  • Date: May 7, 2026
  • Time: 07:00 PM - 08:00 PM (Local Time Germany)
  • Speaker: Natalie Krivova
  • Max-Planck-Institut für Sonnensystemforschung, Göttingen, DE
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Birgit Krummheuer
  • Topic: Discussion and debate formats, lectures
Auf eine Reise in die weite Vergangenheit unseres Sterns entführt Natalie Krivova vom MPS mit ihrem Vortrag „Wenn die Sonne tobt: Auf den Spuren der stärksten Sonnenstürme des Holozäns“. Um zu verstehen, zu welchem Verhalten die Sonne prinzipiell fähig ist, blickt die Forscherin zurück auf die Epoche der Nacheiszeit. Gibt es Hinweise auf starke Sonnenstürme? Wie häufig kamen sie vor? Und wie lassen sie sich nach Jahrhunderten und Jahrtausenden aufspüren? [more]
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: Refractory Minerals – Archives from the Early Solar System (Xin Yang)

Planetary Science Seminar
  • Date: May 11, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Xin Yang
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: Germanium isotopes reveal dual origin of volatile element depletion among the oldest planetesimals (Elias Wölfer)

Planetary Science Seminar
  • Date: May 18, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Elias Wölfer
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann
Künstlerische Darstellung von Erde und Sonne von hinter der Erde aus gesehen. Der größte Teil des Bildes wird von einem Viertel der Erscheibe eingenommen, die aus dem unteren rechten Bildrand über die Bildmitte hinaus hineinragt. Links oberhalb davon schaut eine teilweise verdeckte fast vollständige Sonnenscheibe heraus.

Im Feuerwerk der Sonne: Mission Vigil: Weltraumwettervorhersagen aus einzigartiger Perspektive (Johann Hirzberger)

Öffentlicher Vortrag
  • Date: May 21, 2026
  • Time: 07:00 PM - 08:00 PM (Local Time Germany)
  • Speaker: Johann Hirzberger
  • Max-Planck-Institut für Sonnensystemforschung, Göttingen, DE
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Birgit Krummheuer
  • Topic: Discussion and debate formats, lectures
Um Zukunftsmusik geht es im Vortrag: Mission Vigil - Weltraumwettervorhersage aus einzigartiger Perspektive. 2031 startet die ESA-Raumsonde Vigil ins All. Aus seitlicher Beobachtungsposition wird der Sonnenspäher eher als erdnahe und erdgebundene Teleskope erkennen können, wenn sich auf der Sonne gefährliches Weltraumwetter zusammenbraut. Eines der wissenschaftlichen Instrumente der Mission entsteht derzeit am MPS. Johann Hirzberger vom MPS gibt einen Überblick. [more]
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: Optimisation of future in situ Martian soil analyses with MOMA GC-MS (Guillaume Leseigneur)

Planetary Science Seminar
  • Date: Jun 8, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Guillaume Leseigneur
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: tba (Aryavart Anand)

Planetary Science Seminar
  • Date: Jun 15, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Aryavart Anand
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann
A rocky celestial body in blue hues in front of a dark blue background. The body's shape is spherical, and it is surrounded by much smaller, also spherically-shaped bodies. The scene's vicinity has a nebular quality to it, which is partially illuminated by a bright light on the top right.

PGS: Mercury surface analysis using MESSENGER and BepiColombo data (Azar Arghavanian)

Planetary Science Seminar
  • Date: Jun 29, 2026
  • Time: 01:00 PM - 02:00 PM (Local Time Germany)
  • Speaker: Azar Arghavanian
  • MPS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Jan Hellmann
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Turbulence in Keplerian flow (Abhiroop Bhadra)

S3 Seminar
  • Date: Jul 1, 2026
  • Time: 02:00 PM - 02:30 PM (Local Time Germany)
  • Speaker: Abhiroop Bhadra
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Magnetic Synoptic Maps: Vector Fields and Polar Regions (Francisca Santos)

S3 Seminar
  • Date: Jul 1, 2026
  • Time: 02:30 PM - 03:00 PM (Local Time Germany)
  • Speaker: Francisca Santos
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Quantifying the effect of passband on observations in the Ca II K line (Ajay Yadav Kumar)

S3 Seminar
  • Date: Jul 22, 2026
  • Time: 02:00 PM - 02:30 PM (Local Time Germany)
  • Speaker: Ajay Yadav Kumar
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Measuring and Modeling Stellar Magnetic Activity Effects in Transit Spectroscopy (Rosa Keers)

S3 Seminar
  • Date: Jul 22, 2026
  • Time: 02:30 PM - 03:00 PM (Local Time Germany)
  • Speaker: Rosa Keers
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
A Sun drawn in comic style with an active surface, with ten rays of various lengths emerging from its disk forming a spiked wheel shape that supports colorful planets as well as a comet and a cloud of pebbles positioned at its various end points.

S3 Seminar: Thermal evolution of coronal loops (Bhinva Ram)

S3 Seminar
  • Date: Jul 22, 2026
  • Time: 03:00 PM - 03:30 PM (Local Time Germany)
  • Speaker: Bhinva Ram
  • IMPRS
  • Location: Max-Planck-Institut für Sonnensystemforschung
  • Room: Auditorium
  • Host: Sonja Schuh
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