Venue
Nordita, Stockholm, Sweden
Scope
This is a 3-week-long topical program on cosmic magnetic fields. The program is designed to promote connections between theory and observations, in particular lessons from gamma-ray and radio observations in addition to exploring various generation mechanisms and the role of astrophysical processes in its evolution through cosmic time. The program aims to put renowned experts from each field together in a stimulating environment ideal for collaboration and examine how recent developments in numerical and observational fronts and novel ideas can shape our understanding of the all-pervasive cosmic magnetic fields.
Themes and preliminary program schedule
Generation and evolution of the cosmological magnetic fields, astrophysical processes driving magnetisation, and estimates from gamma-ray and radio observations constitute the broad themes. They are spread across three weeks.
This Nordita program will bring several topical experts and early-career researchers in the field together for the duration of the program, which is designed to be a discussion-intensive collaborative space.
Week 1 — Primordial and Astrophysical Magnetogenesis & Evolution
New advances in the simulations of primordial genesis scenarios such as inflation and phase‑transition. In the same week, talks on astrophysical seeding by galactic dynamo mechanism, Biermann’s battery mechanism and starburst winds. Dedicated discussions on how amplitudes, coherence lengths, topology, and helicity evolve through structure formation, and what the major obstacles are.
Week 2 — Observations Across Environments and Messengers
Overview talks on radio observations detailing extragalactic Faraday rotation measures; diffuse synchrotron emission in halos, relics, and filaments; constraints from gamma‑ray cascades and time delay observations; and cosmic‑ray deflections. Emphasis on environment‑by‑environment comparisons and discussion on source specifications, details of gamma-ray source population, redshift dependence, and foreground modelling.
Week 3 — Interpreting Measurements: Feedback, Plasma Physics, and Turbulence
Various talks on how baryonic feedback, AGN outflows, turbulence, small‑scale dynamos, reconnection, and plasma instabilities shape observables. Discussion sessions to guide connections between simulations and analyses to RM statistics, polarization morphology, and high‑energy signatures in gamma-ray and UHECR cross-correlations.
Typical day:
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10:00–12:30 Plenary talk
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14:00–15:30 Plenary talk
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15:30–17:00 Free discussion / working groups
Long talks are 45–60 minutes + 15 minutes Q&A each. The last plenary talk each week is a structured and moderated panel discussion.
Tentative speakers
Franco Vazza
Chiara Caprini
Andrii Neronov
Oksana Iarygina
Michael Kachelriess
Martin Pohl
Jonathan Biteau
Foteini Oikonomou
Subir Sarkar
Jennifer Schober
Andrew Taylor
Cathy Horellou
Ruth Durrer
Accommodation
Participants from abroad may be accommodated in BizApartments, subject to funding availability.
Travel support
There will be limited funding available for travel support. In order to apply for travel support, apply to register for the program by ticking the box for travel support.
Application/Registration
Registration to be considered for on-site participation will close TBD. Registrants will receive an on-site/remote participation confirmation from the organizers after this date.
Sponsored by:
Swedish Research Council (Vetenskapsrådet) [AB]
