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 -Data-driven mode l of temporal evolution of the solar Mg II h and k profiles over the solar cycle (J. Koza)

ESPOS
The solar radiation in the cores of the Mg II h & k spectral lines strongly correlates with solar magnetic activity and global variations of magnetic fields with the solar cycle. This work provides a data-driven model of the temporal evolution of the solar full-disk Mg II h & k profiles over the solar cycle. Based on selected 76 IRIS near-UV full-Sun mosaics covering almost the full solar cycle 24, we find the parameters of double-Gaussian fits of the disk-averaged Mg II h & k profiles and a model of their temporal evolution parameterized by the Bremen composite Mg II index. The Markov Chain Monte Carlo algorithm implemented in the IDL toolkit SoBAT is used in modeling and predicting the temporal evolution of the Mg II h & k peak-to-center intensity ratio and the Bremen Mg II index. The relevant full-disk Mg II h & k calibrated profiles with uncertainties and spectral irradiances are provided as an online machine-readable table. To facilitate the utilization of the model corresponding routines, written in IDL, are made publicly available on GitHub.Co-authors: Stanislav Gunár (The Czech Academy of Sciences, Czech Republic), Pavol Schwartz (Slovak Academy of Sciences, Slovakia), Petr Heinzel (The Czech Academy of Sciences, Czech Republic; University of Wrocław, Poland), Wenjuan Liu (The Czech Academy of Sciences, Czech Republic) [more]

Was ist da draußen? Die PLATO-Mission zur Suche nach extrasolaren Planeten. (M. Ammler-von Eiff, M. Schäfer)

Was ist da draußen? Öffentliche Vortragsreihe am MPS: Öffentliche Vortragsreihe
Öffentliche Vortragsreihe des Max-Planck-Instituts für Sonnensystemforschung über ferne Welten außerhalb unseres Sonnensystems. [more]

Was ist da draußen? Atmosphären ferner Welten. (M. Rengel)

Was ist da draußen? Öffentliche Vortragsreihe am MPS: Öffentliche Vortragsreihe
Öffentliche Vortragsreihe des Max-Planck-Instituts für Sonnensystemforschung über ferne Welten außerhalb unseres Sonnensystems. [more]

Was ist da draußen? - Extreme Winde auf heißen Jupitern. (V. Böning)

Was ist da draußen? Öffentliche Vortragsreihe am MPS: Öffentliche Vortragsreihe
Öffentliche Vortragsreihe des Max-Planck-Instituts für Sonnensystemforschung über ferne Welten außerhalb unseres Sonnensystems. [more]

MPS Seminar: On the Origin of the Photospheric Magnetic Field (M. Linton)

  • Date: May 16, 2024
  • Time: 02:00 PM - 03:00 PM (Local Time Germany)
  • Speaker: Mark Linton
  • Mark Linton (NRL), in collaboration with Peter Schuck (NASA/GSFC), Kalman Knizhnik (NRL), and James Leake (NASA/GSFC)
  • Location: MPS
  • Room: Lecture Hall
  • Host: Gherardo Valori
We present a new mathematically rigorous analysis tool (Schuck et al. 2022), based on Gauss' 1839 method for analyzing terrestrial magnetic fields, that extracts attribution from photospheric vector magnetogram observations and answers the question ``what is the source of the photospheric magnetic field, the convection zone or corona?'' We apply this powerful 19th-century method to SDO/HMI observations of NOAA AR 12673 to disentangle the photospheric magnetic field produced by these two source regions. This allows us to generate paired photospheric vector magnetograms for the fields produced by coronal sources and for fields produced by convection zone sources. From these analyses, we demonstrate that bare current channels are supported by the solar corona and that these coronal current channels can be a significant source of the radial component of the magnetic field in the photosphere. [more]

Was ist da draußen? - Entstehung und Entwicklung terrestrischer Exoplaneten. (T. Lichtenberg)

Was ist da draußen? Öffentliche Vortragsreihe am MPS: Öffentliche Vortragsreihe
Öffentliche Vortragsreihe des Max-Planck-Instituts für Sonnensystemforschung über ferne Welten außerhalb unseres Sonnensystems. [more]
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