Intergalactic Magnetic Field: a new probe of the Early Universe
IFPU
10-14 February 2025
The purpose of the proposed focus meeting is to convene diverse and cross-cutting expertise related to the investigation of the cosmic magnetic fields.
Magnetic fields are ubiquitous in our universe and are well established in galaxies and cluster of galaxies, but not in the remaining 99% of the volume comprised of voids and filaments. Unlike the magnetic fields in galaxies and clusters of galaxies, the Inter Galactic Magnetic Field (IGMF) has never been detected; only limits using various techniques have been derived. The IGMF in voids remains uncontaminated by winds and outflows preserving the pristine form of the seed magnetic field. Measuring or constraining the magnetic field intensity and correlation length in cosmic voids will enable us to assess the origin of the seed magnetic fields and their impact in the formation of large-scale structures, thereby providing a new probe of the early Universe and new fundamental physics.
This investigation is pursued observationally through the measurement of magnetic fields using various observational techniques such as gamma-rays, radio, and
Cosmic Microwave Background (CMB). Additionally, theoretical explorations are conducted to understand their implications for cosmological evolution, structure formation, multimessenger probes, and numerical simulations.
The primary objective of the meeting is to foster the exchange of ideas and promote collaboration among experts from these different areas of expertise. The meeting seeks to stimulate innovative approaches and novel insights in the study of cosmic magnetic fields.
Organisers:
- Antonio Stamerra (INAF-OAR, Rome)
- Francesco Longo (University of Trieste)
Participants:
- TBA