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DTSTART;TZID=Australia/Sydney:20251203T120000
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DTSTAMP:20260521T113316
CREATED:20251118T071516Z
LAST-MODIFIED:20251127T060200Z
UID:16181-1764763200-1764766800@www.atnf.csiro.au
SUMMARY:S&A Colloquium: Sam Taziaux (Ruhr University Bochum)
DESCRIPTION:MEDUSA  — Magnetic-field Evolution in Dwarf galaxies from Ultra-deep SKA Analysis  \n\n\nAbstract: \n\nDwarf galaxies are an important class of galaxies\, which are known to serve as proxy for the early Universe and play a crucial role in the formation and evolution of larger galaxies. To understand the underlying emission mechanism and the physics that drive the radiation far away from their origin\, we perform radio continuum polarimetry studies using deep MeerKAT observations. With the MEDUSA (Magnetic field Evolution in Dwarf galaxies Using SKA Analysis) project\, we present to-date the largest radio polarimetry study of dwarf galaxies\, including HI kinematics. Analysis of the spectrum reveals potential energy losses with rapid dissipation of electrons over kiloparsec scales\, a phenomenon contrasting sharply with observations from grand spiral galaxies. Furthermore\, small-scale dynamos in the star-fomation knots and a correlation between the level of depolarisation and the star formation histories deepen the understanding of this low mass systems. These findings provide evidence of intense material feedback into the intergalactic medium\, a process expected to be prevalent in the protogalaxies of the early Universe.  \n\nPlease note that the event timezone is AWST (UTC+8 hrs) \nJoin Event on Microsoft Teams\nLocation\n\nOrganiser\n\n \n\n \n\nEvent details\nDownload iCal\nCategory\nColloquia
URL:https://www.atnf.csiro.au/event/sa-colloquium-sam-taziaux-ruhr-university-bochum/
LOCATION:26 Dick Perry Ave\, Kensington WA 6151\, 26 Dick Perry Avenue\, Kensington\, Washington\, 6151
CATEGORIES:Colloquia
ATTACH;FMTTYPE=image/png:https://www.atnf.csiro.au/wp-content/uploads/2025/11/sam_taziaux_apad.png
ORGANIZER;CN="Gemma Anderson":MAILTO:gemma.anderson@csiro.au
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