Researchers at ICRAR have uncovered tantalizing evidence of magnetic fields in the universe's largest cosmic structures. The cosmic web, a network of interconnecting filaments and clusters containing gases, galaxies, and winding around cosmic voids that span millions of light-years, represents the
, Australia’s national science agency, is helping us to further understand these cosmic magnetic fields., is the lead author of the research and describes magnetism as a fundamental force in nature.
Her research has recorded radio emissions coming from the cosmic web – the first observational evidence of strong shockwaves. Data from the Murchison Widefield Array radio telescope in Western Australia provided all-sky radio maps for the research. Credit: Dragonfly Media “As very few sources emit polarised radio light, our search was less prone to contamination and we have been able to provide much stronger evidence that we are seeing emissions from the shockwaves in the largest structures in the universe, which helps to confirm our models for the growth of this large-scale structure.”
The stacking method helps to strengthen the faint signal above the image noise, which was then compared to state-of-the-art cosmological simulations generated through the Enzo Project.
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