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.

ESPOS: Two Distinct Eruptive Events Observed by Metis on October 28, 2021 (Yara de Leo)

ESPOS
On October 28, 2021 the first X-class solar flare of Solar Cycle 25 occurred in active region NOAA AR 12887 with a peak at 15:35 UT. It produced the rare event of ground-level enhancement of the solar relativistic proton flux and a global extreme ultraviolet wave, along with a fast halo coronal mass ejection (CME) as seen from Earth’s perspective. A few hours before the flare, a slower CME had erupted from a quiet Sun region just behind the northwestern solar limb. Solar Orbiter was almost aligned with the Sun-Earth line and, during a synoptic campaign, its coronagraph Metis detected the two CME events in both Visible Light (VL) and UltraViolet (UV) channels. The earlier CME took place in the north-west (NW) sector of Metis field of view, while several bright features of the flare-related event appeared mostly to the south-east (SE). The NW and SE events have two distinct origins, but were both characterized by a very bright emission in HI Ly-alpha visible in the UV images of Metis up to 8 solar radii. This work is a follow-up study of two out of the six events analyzed by Russano et al. 2024 (A&A, 683, A191), aimed at investigating the evolution of these two almost co-temporal CMEs but originating in such distinct source regions. To that end, we extensively inspect data sets from numerous remote-sensing instruments observing the Sun in several spatial and spectral regimes. We characterize several aspects of these CMEs, including their three-dimensional properties, kinematics, mass, and temporal evolution of those quantities. Results of this work point to notable differences between these two events showing significant UV emission in the corona. Co-authors: H. Cremades, F. A. Iglesias, L. Teriaca, R. Aznar Cuadrado, F. M. López, L. Di Lorenzo, M. Temmer, M. Romoli, D. Spadaro, and the Metis Team [more]
Die Erde nimmt unter den vier Gesteinsplaneten eine Sonderstellung ein. Sie ist der einzige Planet, von dem wir mit Sicherheit wissen, dass sich dort Leben entwickelte. In seiner Forschung beschäftigt sich der Wissenschaftler unter anderem mit den frühsten Spuren dieser Entwicklung, die sich in Milliarden Jahren alten Gestein finden und geht der Frage nach, wie Erkenntnisse der Geobiologe bei der Suche nach Leben auf anderen Planeten helfen können. [more]

IMPRS Symposium Talk: Asteroseismological Analysis of pulsating white dwarf (Jiayi Zhang)

IMPRS Symposium March 2025

Die Erde und ihre Geschwister: Zum Mars - und wieder zurück (Fiona Thiessen)

Nach der Erde dürfte der am besten erforschte Planet unseres Sonnensystems der Mars sein. Zahlreiche Sonden haben ihn bereits besucht; zehn sind dort erfolgreich gelandet. Der nächste Schritt, auf den Forschende hoffen, ist eine so genannte Sample Return Mission: eine Mission, die Gestein vom Mars zurück zur Erde bringt. In irdischen Laboren ließen sich solche Proben umfassender untersuchen als vor Ort auf dem Mars. Bericht vom aktuellen Stand auf dem Weg zur ersten Sample Return Mission. [more]
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