Seminare am MPS

Zu allen Seminaren und Vorträgen am MPS sind interessierte Besucher herzlich willkommen. Die Präsentationen werden hauptsächlich in englischer Sprache gehalten, genauere Informationen zu Themen, Rednern und Terminen sind auf den einzelnen Seminar-Seiten zu finden. Bei Institutsseminaren und Kolloquien präsentieren geladene Gastwissenschaftler anderer Institute Erfolge und Resultate ihrer Forschung. In den S3 Seminaren erklären Doktoranden der Internationalen Max Planck Research School (IMPRS) ihre Arbeit. In den Seminaren über Planeten und Kometen (PGS) sowie den Seminaren über die Sonne und sonnenähnlicher Sterne (SSGS), berichten die Wissenschaftler aus den jeweiligen Abteilungen über neueste Ergebnisse und Fortschritte in ihren Projekten und stellen neue Missionen vor. Bei allen Seminaren findet im Anschluss an den Vortrag eine kurze Diskussions- bzw. Fragerunde zum Thema statt.

MPS Seminar: Inertial Oscillations in the Solar Interior (Catherine Blume)

Abstract: Recent observations of Rossby waves and other more exotic forms of inertial oscillations in the Sun's convection zone have kindled the hope that such waves might be used as a seismic probe of the Sun's interior. Here we present a 3D numerical simulation in spherical geometry that models the Sun's convection zone and upper radiative interior. This model features a wide variety of inertial oscillations, including both sectoral and tesseral equatorial Rossby waves, retrograde mixed inertial modes, prograde thermal Rossby waves, the recently observed high-frequency retrograde (HFR) vorticity modes, and what may be latitudinal overtones of these HFR modes. With this model, we demonstrate that sectoral and tesseral Rossby waves are ubiquitous within the radiative interior as well as within the convection zone. We suggest that there are two different Rossby-wave families in this simulation that live in different wave cavities: one in the radiative interior and one in the convection zone. Finally, we suggest that many of the retrograde inertial waves that appear in the convection zone, including the HFR modes, are in fact all related, being latitudinal overtones that are mixed modes with the prograde thermal Rossby waves. Short Bio: Catherine Blume is a PhD candidate at the University of Colorado-Boulder, where she works with Brad Hindman. She is broadly interested in the many guises of inertial waves. When she can find a spare minute, she enjoys walking in the mountains, singing, and exploring the mathematics behind crochet. [mehr]

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. [mehr]

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

  • Datum: 16.05.2024
  • Uhrzeit: 14:00 - 15:00
  • Vortragende(r): Mark Linton
  • Mark Linton (NRL), in collaboration with Peter Schuck (NASA/GSFC), Kalman Knizhnik (NRL), and James Leake (NASA/GSFC)
  • Ort: MPS
  • Raum: Lecture Hall
  • Gastgeber: 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. [mehr]

MPS Seminar: Exoplanets, cool stars, and their interactions (Katja Poppenhäger)

Katja Poppenhaeger is 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. [mehr]

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. [mehr]

S3 Seminar: High-resolution observations of small-scale activity in coronal hole plumes (Ziwen Huang)

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S3 Seminar: Turbulent spherical Rayleigh-Bénard convection: radius ratio and Prandtl number dependence (Yifeng Fu)

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S3 Seminar: Modelling low-frequency modes of the Sun (Suprabha Mukhopadhyay)

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S3 Seminar: Modelling the Impact of Earth’s Mantle on the Geodynamo (Illya Lohay)

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S3 Seminar: High Resolution Observations of Active Region Moss using EUI and PHI (Abhas Pradhan)

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IMPRS Defense: Title (Jonas Schneider)

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S3 Seminar: Deciphering planet formation using meteoritic data (Nerea Gurrutxaga)

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S3 Seminar: Detecting false positives for the PLATO space mission: A comparison between Centroid Shifts measurements and Double-Aperture Photometry (Fernando Canales)

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S3 Seminar: Dust dynamics modelling on the main-belt comet 324P/La Sagra (Maria Mastropietro)

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S3 Seminar: Characterizing and Denoising Helioseismic Far-Side Images (Aarushi Rawat)

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S3 Seminar: Nonlinear behavior of solar inertial modes? (Yash Mandowara)

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S3 Seminar: Inertial modes in the solar convection zone: The forward problem (Prithwitosh Dey)

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S3 Seminar: Long-term variations of solar irradiance (Duresa Temaj)

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S3 Seminar: Treatment of limb darkening in retrievals of exoplanet atmospheres (Rosa Keers)

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S3 Seminar: Observations of high-latitude inertial mode eigenfunctions using local correlation tracking (Neelanchal Joshi)

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