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Research Associate Professor

Photo of Research Associate Professor Jonathan Squire.

Location
Room 417
Phone numbers
9007 (Office)
64 3 479 9007 (Office Direct Dial)
Email
jonathan.squire@otago.ac.nz
Research Group
https://apf.physics.otago.ac.nz

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Biography


I carried out my undergraduate studies in physics at the University of Otago before going to Princeton University to join the PhD programme in plasma physics in 2010. After graduating in 2015, I was a postdoctoral fellow in the astronomy department at Caltech, then joined the Otago physics department as a research fellow in late 2018.

My research covers the broad area of astrophysical and geophysical fluid and plasma dynamics. I am most interested in the theory of the basic physics that governs fluids and plasmas: instabilities, turbulence, the generation of magnetic fields, and the behaviour of collisionless plasmas. Such processes control a wide variety of astrophysical and geophysical systems, including the Earth's magnetic field, planet formation in accretion disks, the solar wind and solar cycle, galaxy clusters, and the magnetization of the entire universe. My work involves a mix of analytic theory and large computer simulations, and I keep up a keen interest in developing robust numerical algorithms that allow us to better understand the complex multi-scale physics of plasmas and fluids.

Publications

Squire, J. (2024). Switchbacks: Nonlinear magnetic waves in the solar wind. Proceedings of the 6th Australasian Conference on Wave Science (KOZWaves). (pp. 22). Retrieved from https://www.otago.ac.nz/news/events/kozwaves-2024-the-6th-australasian-conference-on-wave-science2

Bowen, T. A., Bale, S. D., Chandran, B. D. G., Chasapis, A., Chen, C. H. K., Dudok de Wit, T., … Meyrand, R., & Squire, J. (2024). Mediation of collisionless turbulent dissipation through cyclotron resonance. Nature Astronomy. Advance online publication. doi: 10.1038/s41550-023-02186-4

Bowen, T., Bale, S. D., Chandran, B. D. G., Chasapis, A., Chen, C. H. K., Dudok De Wit, T., … Meyrand, R., & Squire, J. (2023). Mediation of collisionless turbulent dissipation through cyclotron resonance [Invited]. Proceedings of the American Geophysical Union (AGU) Fall Meeting: Wide. Open. Science. SH53B-02. Retrieved from https://www.agu.org

Zhang, M., Kunz, M. W., Squire, J., & Meyrand, R. (2023). Enhanced heating of solar-wind minor ions in simulations of imbalanced, Alfvénic turbulence. Proceedings of the American Geophysical Union (AGU) Fall Meeting: Wide. Open. Science. SH54B-06. Retrieved from https://www.agu.org

Squire, J., Meyrand, R., & Kunz, M. W. (2023). Electron-ion heating partition in imbalanced solar-wind turbulence. Astrophysical Journal Letters, 957, L30. doi: 10.3847/2041-8213/ad0779

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