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Disks and Jets

Gravity, Rotation and Magnetic Fields

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Abstract

Magnetic fields are fundamental to the dynamics of both accretion disks and the jets that they often drive. We review the basic physics of these phenomena, the past and current efforts to model them numerically with an emphasis on the jet-disk connection, and the observational constraints on the role of magnetic fields in the jets of active galaxies on all scales.

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Acknowledgements

The authors would like to thank the ISSI team for their support and hospitality, and for the organization of a great workshop and fruitful discussions during the week in Bern. This work was also supported by NSF grant AST0908869 (JFH) and by funding from the UK STFC (MJH). AT was supported by NASA through Einstein Postdoctoral Fellowship grant number PF3-140115 awarded by the Chandra X-ray Center, which is operated by the Smithsonian Astrophysical Observatory for NASA under contract NAS8-03060, and NASA via High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center that provided access to the Pleiades supercomputer, as well as NSF through an XSEDE computational time allocation TG-AST100040 on NICS Kraken, Nautilus, TACC Stampede, Maverick, and Ranch. AT used Enthought Canopy Python distribution to generate the figures for this work. JFH wishes to thank Julian Krolik for useful discussions.

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Correspondence to John F. Hawley.

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A. Tchekhovskoy is an Einstein Fellow.

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Hawley, J.F., Fendt, C., Hardcastle, M. et al. Disks and Jets. Space Sci Rev 191, 441–469 (2015). https://doi.org/10.1007/s11214-015-0174-7

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  • DOI: https://doi.org/10.1007/s11214-015-0174-7

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