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Magnetic fields in the intergalactic medium and in the cosmic web

Published online by Cambridge University Press:  03 March 2020

Marcus Brüggen ,
Shane O’Sullivan ,
Annalisa Bonafede  and
Franco Vazza
Marcus Brüggen
Affiliation:
University of Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany email: mbrueggen@hs.uni-hamburg.de
Shane O’Sullivan
Affiliation:
University of Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany email: mbrueggen@hs.uni-hamburg.de
Annalisa Bonafede
Affiliation:
University of Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany email: mbrueggen@hs.uni-hamburg.de Dipartimento di Fisica e Astronomia, Universita di Bologna, via P. Gobetti 93/2, 40129, Bologna, Italy INAF - Istituto di Radioastronomia, Bologna Via Gobetti 101, I-40129 Bologna, Italy
Franco Vazza
Affiliation:
University of Hamburg, Gojenbergsweg 112, 21029 Hamburg, Germany email: mbrueggen@hs.uni-hamburg.de Dipartimento di Fisica e Astronomia, Universita di Bologna, via P. Gobetti 93/2, 40129, Bologna, Italy INAF - Istituto di Radioastronomia, Bologna Via Gobetti 101, I-40129 Bologna, Italy
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Abstract

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In these proceedings we discuss advances in the theory and observation of magnetic fields in the intergalactic medium and in the cosmic web. We make the point that, despite perhaps unsurmountable obstacles in simulating a small-scale dynamo, currently most cosmological magnetohydrodynamical simulations paint a similar picture of magnetic field amplification in the cosmos. However, observations of magnetic fields in the intergalactic medium turn out to be very difficult. As a case in point, we present recent work on Faraday rotation measurement in the direction of a giant galaxy with the Low Frequency Array (LOFAR). These observations demonstrate the currently unique capability of LOFAR to measure Faraday rotation at the high accuracy and angular resolution required to investigate the magnetisation of large-scale structure filaments of the cosmic web.

Keywords

(galaxies:) intergalactic medium(cosmology:) large-scale structure of universemagnetic fieldsmethods: numerical(magnetohydrodynamics:) MHD
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 303 - 306
Copyright
© International Astronomical Union 2020

References

Akahori, T., Kumazaki, K., Takahashi, K., & Ryu, D. 2014, Publications of the Astronomical Society of Japan, 66, 65 CrossRefGoogle Scholar
Beresnyak, A., & Miniati, F. 2016, ApJ, 817, 127 CrossRefGoogle Scholar
Bull, P., Camera, S., Kelley, K., et al. 2018, arXiv:1810.02680Google Scholar
Burbidge, G. R. 1958, ApJ, 128, 1 CrossRefGoogle Scholar
De Young, D. S. 1992, ApJ, 386, 464–472 Google Scholar
Donnert, J., Dolag, K., Lesch, H., Müller, E. 2009, MNRAS, 392, 1008–1021 CrossRefGoogle Scholar
Donnert, J., Vazza, F., Brueggen, M. ZuHone, J. 2018, SSRv, 214, 122 Google Scholar
Farnsworth, D., Rudnick, L., & Brown, S. 2011, ApJ, 141, 191 CrossRefGoogle Scholar
Goldshmidt, O., Rephaeli, Y. 1993, ApJ, 411, 518–528 CrossRefGoogle Scholar
Jaffe, W. 1980, ApJ, 241, 925–927 CrossRefGoogle Scholar
Kierdorf, M., Beck, R., Hoeft, M., et al. 2017, A&A, 600, A18 Google Scholar
Kulsrud, R. M., Cen, R., Ostriker, J. P., Ryu, D. 1997, ApJ, 480, 481–491 CrossRefGoogle Scholar
Miniati, F., Beresnyak, A. 2015, Nature, 523, 59–62 CrossRefGoogle Scholar
O’Sullivan, S. P., Machalski, J., Van Eck, C. L., et al. 2019, A&A, 622A, 16 Google Scholar
Roland, J. 1981, A&A, 93, 407–410 Google Scholar
Ruzmaikin, A., Sokolov, D., Shukurov, A. 1989, MNRAS, 241, 1–14 CrossRefGoogle Scholar
Sánchez-Salcedo, F. J., Brandenburg, A., Shukurov, A. 1998, APSS, 263, 87–90 Google Scholar
Schekochihin, A. A., Cowley, S. C., Taylor, S. F., Maron, J. L., McWilliams, J. C. 2004, ApJ, 612, 276–307 Google Scholar
Subramanian, K., Shukurov, A., Haugen, N. E. L. 2006, MNRAS, 366, 1437–1454 CrossRefGoogle Scholar
Vazza, F., Brunetti, G., Brüggen, M., Bonafede, A. 2018, MNRAS, 474, 1672–1687 CrossRefGoogle Scholar
Xu, H., Li, H., Collins, D. C., Li, S., & Norman, M. L. 2009, ApJL, 698, L14 CrossRefGoogle Scholar