New constraints on the magnetization of the cosmic web using LOFAR Faraday rotation observations

@article{OSullivan2020NewCO,
  title={New constraints on the magnetization of the cosmic web using LOFAR Faraday rotation observations},
  author={S. O'Sullivan and M. Bruggen and F. Vazza and E. Carretti and N. Locatelli and C. Stuardi and V. Vacca and T. Vernstrom and G. Heald and C. Horellou and T. Shimwell and M. Hardcastle and C. Tasse and H. Rottgering},
  journal={arXiv: Cosmology and Nongalactic Astrophysics},
  year={2020}
}
  • S. O'Sullivan, M. Bruggen, +11 authors H. Rottgering
  • Published 2020
  • Physics
  • arXiv: Cosmology and Nongalactic Astrophysics
  • Measuring the properties of extragalactic magnetic fields through the effect of Faraday rotation provides a means to understand the origin and evolution of cosmic magnetism. Here we use data from the LOFAR Two-Metre Sky Survey (LoTSS) to calculate the Faraday rotation measure (RM) of close pairs of extragalactic radio sources. By considering the RM difference ($\Delta$RM) between physical pairs (e.g. double-lobed radio galaxies) and non-physical pairs (i.e. close projected sources on the sky… CONTINUE READING
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