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Cited by 1,084

The DOI matches its Crossref record; 72 of the 72 references it cites were found in a registry or an index.

First results from the IllustrisTNG simulations: radio haloes and magnetic fields

Open access
Marinacci, Federico, Vogelsberger, Mark, Pakmor, Rüdiger, Torrey, Paul, Springel, Volker, Hernquist, Lars, Nelson, Dylan, Weinberger, Rainer, Pillepich, Annalisa, Naiman, Jill, Genel, Shy·2018·Monthly Notices of the Royal Astronomical Society
DOI 10.1093/mnras/sty2206
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Abstract

We introduce the IllustrisTNG project, a new suite of cosmological magnetohydrodynamical simulations performed with the moving-mesh code AREPO employing an updated Illustris galaxy formation model. Here we focus on the general properties of magnetic fields and the diffuse radio emission in galaxy clusters. Magnetic fields are prevalent in galaxies, and their build-up is closely linked to structure formation. We find that structure formation amplifies the initial seed fields ($10^{-14}$ comoving Gauss) to the values observed in low-redshift galaxies ($1-10\,μ{\rm G}$). The magnetic field topology is closely connected to galaxy morphology such that irregular fields are hosted by early-type galaxies, while large-scale, ordered fields are present in disc galaxies. Using two simple models for the energy distribution of relativistic electrons we predict the diffuse radio emission of $280$ clusters with a baryonic mass resolution of $1.1\times 10^{7}\,{\rm M_{\odot}}$, and generate mock observations for VLA, LOFAR, ASKAP and SKA. Our simulated clusters show extended radio emission, whose detectability correlates with their virial mass. We reproduce the observed scaling relations between total radio power and X-ray emission, $M_{500}$, and the Sunyaev-Zel'dovich $Y_{\rm 500}$ parameter. The radio emission surface brightness profiles of our most massive clusters are in reasonable agreement with VLA measurements of Coma and Perseus. Finally, we discuss the fraction of detected extended radio haloes as a function of virial mass and source count functions for different instruments. Overall our results agree encouragingly well with observations, but a refined analysis requires a more sophisticated treatment of relativistic particles in large-scale galaxy formation simulations.

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Metadata

Authors
Marinacci, F., Vogelsberger, M., Pakmor, R., Torrey, P., Springel, V., Hernquist, L., Nelson, D., Weinberger, R., Pillepich, A., Naiman, J., & Genel, S.
Venue
Monthly Notices of the Royal Astronomical Society
Publisher
Oxford University Press (OUP)
Published
2018-08-18
ISSN
  • 0035-8711 (ISSN-L)
  • 1365-2966
DOI
10.1093/mnras/sty2206
OpenAlex
W2735189638
Cited by
1,084
References
72
FWCI
46.45
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: First results from the IllustrisTNG simulations: radio haloes and magnetic fields. https://app.cochat.ai/papers/10.1093/mnras/sty2206
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Marinacci, F., Vogelsberger, M., Pakmor, R., Torrey, P., Springel, V., Hernquist, L., Nelson, D., Weinberger, R., Pillepich, A., Naiman, J., & Genel, S. (2018). First results from the IllustrisTNG simulations: radio haloes and magnetic fields. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/sty2206

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