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DTSTART;TZID=Australia/Sydney:20251126T150000
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UID:16208-1764169200-1764172800@www.atnf.csiro.au
SUMMARY:S&A Colloquium: Jennifer West (Dominion Radio Astrophysical Observatory)
DESCRIPTION:Is the heliopause seen in radio synchrotron emission?\n\nAbstract: \n\nDiffuse radio synchrotron emission originating in the Milky Way fills the entire sky\, even at high Galactic latitudes. The emission is highly linearly polarised\, and comes from high energy CRs moving in the Galaxy’s magnetic field. Planck has measured the orientation of this emission and has mapped the magnetic field pattern across the sky\, however\, we do not know if the origin of the pattern is distant (tracing the large-scale magnetic field) or nearby (tracing the Local Bubble\, a massive superbubble where our Sun now resides). The reality is the emission must originate at a wide range of distances. In this talk\, I will present evidence that some of this emission has its origin in the interaction between the heliopause and the very local interstellar magnetic field. The emission is polarised\, and traces the local interstellar magnetic field as it wraps around the heliosphere at the heliopause boundary\, which is related to the Sun’s motion through space\, and which has previously been revealed through a bright ribbon of emission detected by NASA’s Interstellar Boundary Explorer (IBEX). \n\nPlease note that the event timezone is AEDT (UTC+11 hrs) \n\n \nJoin Event on Microsoft Teams\nLocation\n\nOrganiser\n\nEvent details\nDownload iCal\nCategory\nColloquia
URL:https://www.atnf.csiro.au/event/sa-colloquium-jennifer-west-dominion-radio-astrophysical-observatory/
LOCATION:Marsfield Lecture Theatre\, 26 Pembroke Road\, Marsfield\, NSW\, 2122\, Australia
CATEGORIES:Colloquia
ATTACH;FMTTYPE=image/png:https://www.atnf.csiro.au/wp-content/uploads/2025/11/PastedGraphic-1.png
ORGANIZER;CN="Jishnu Thekkeppattu":MAILTO:Jishnunambissan.Thekkeppattu@csiro.au
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