Imperial College London


Faculty of Natural SciencesDepartment of Physics

Royal Society University Research Fellow



+44 (0)20 7594 7660h.hietala CV




6M58Blackett LaboratorySouth Kensington Campus





Heli Hietala studies structure formation and particle energization in shocks, magnetic reconnection, and radiation belts using multi-spacecraft observations and modelling.

She is the leader of the International Space Science Institute (ISSI) International Team on Foreshocks Across the Heliosphere (2019-2021).

She's also the lead-proposer and co-chair of the GEM Focus Group Dayside kinetic processes in global solar wind - magnetosphere interaction (2016-2020).

She was the co-leader of the ISSI team on Jets Downstream of Collisionless Shocks (2015-2017), and a Young Scientist in the ISSI team Ion and Electron Bulk Heating by Magnetic Reconnection (2013-2015).

Before joining Imperial as a URF, she was a Junior Group Leader at the Space Research Laboratory, University of Turku, Finland, and an Associate Researcher in the Experimental Space Physics Group, Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles.



Robertson SL, Eastwood JP, Stawarz JE, et al., 2021, Electron Trapping in Magnetic Mirror Structures at the edge of Magnetopause Flux Ropes, Journal of Geophysical Research: Space Physics, ISSN:2169-9380

Chen Y, Toth G, Hietala H, et al., 2020, Magnetohydrodynamic with embedded particle‐in‐cell simulation of the Geospace Environment Modeling dayside kinetic processes challenge event, Earth and Space Science, Vol:7, ISSN:2333-5084, Pages:1-15

Woodham L, Horbury T, Matteini L, et al., 2020, Enhanced proton parallel temperature inside patches of switchbacks in the inner heliosphere, Astronomy and Astrophysics: a European Journal, ISSN:0004-6361

Plaschke F, Hietala H, Vörös Z, 2020, Scale sizes of magnetosheath jets, Journal of Geophysical Research: Space Physics, Vol:125, ISSN:2169-9380, Pages:1-12

Liu TZ, Hietala H, Angelopoulos V, et al., 2020, Statistical study of magnetosheath jet‐driven bow waves, Journal of Geophysical Research: Space Physics, Vol:125, ISSN:2169-9380, Pages:1-14

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