Heli Hietala
Heli Hietala
Junior Group Leader, Univ. of Turku / Associate Researcher, UCLA
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Supermagnetosonic jets behind a collisionless quasiparallel shock
H Hietala, TV Laitinen, K Andréeová, R Vainio, A Vaivads, M Palmroth, ...
Physical Review Letters 103 (24), 245001, 2009
Unraveling the drivers of the storm time radiation belt response
EKJ Kilpua, H Hietala, DL Turner, HEJ Koskinen, TI Pulkkinen, ...
Geophysical Research Letters 42 (9), 3076-3084, 2015
Anti-sunward high-speed jets in the subsolar magnetosheath
F Plaschke, H Hietala, V Angelopoulos
Annales Geophysicae 31 (10), 1877-1889, 2013
Supermagnetosonic subsolar magnetosheath jets and their effects: From the solar wind to the ionospheric convection
H Hietala, N Partamies, TV Laitinen, LBN Clausen, G Facskó, A Vaivads, ...
Annales Geophysicae 30 (1), 33-48, 2012
Jets downstream of collisionless shocks
F Plaschke, H Hietala, M Archer, X Blanco-Cano, P Kajdič, T Karlsson, ...
Space Science Reviews 214, 1-77, 2018
The response of Earth's electron radiation belts to geomagnetic storms: Statistics from the Van Allen Probes era including effects from different storm drivers
DL Turner, EKJ Kilpua, H Hietala, SG Claudepierre, TP O'Brien, ...
Journal of Geophysical Research: Space Physics 124 (2), 1013-1034, 2019
The effects of geomagnetic storms on electrons in Earth's radiation belts
DL Turner, TP O'Brien, JF Fennell, SG Claudepierre, JB Blake, EKJ Kilpua, ...
Geophysical Research Letters 42 (21), 9176-9184, 2015
Depleting effects of ICME‐driven sheath regions on the outer electron radiation belt
H Hietala, EKJ Kilpua, DL Turner, V Angelopoulos
Geophysical Research Letters 41 (7), 2258-2265, 2014
What controls the structure and dynamics of Earth’s magnetosphere?
JP Eastwood, H Hietala, G Toth, TD Phan, M Fujimoto
Space Science Reviews 188, 251-286, 2015
On the generation of magnetosheath high‒speed jets by bow shock ripples
H Hietala, F Plaschke
Journal of Geophysical Research: Space Physics 118 (11), 7237-7245, 2013
Ion temperature anisotropy across a magnetotail reconnection jet
H Hietala, JF Drake, TD Phan, JP Eastwood, JP McFadden
Geophysical Research Letters 42 (18), 7239-7247, 2015
Ion reflection and acceleration near magnetotail dipolarization fronts associated with magnetic reconnection
JP Eastwood, MV Goldman, H Hietala, DL Newman, R Mistry, G Lapenta
Journal of Geophysical Research: Space Physics 120 (1), 511-525, 2015
In situ observations of a magnetosheath high‐speed jet triggering magnetopause reconnection
H Hietala, TD Phan, V Angelopoulos, M Oieroset, MO Archer, T Karlsson, ...
Geophysical Research Letters 45 (4), 1732-1740, 2018
Observational properties of dayside throat aurora and implications on the possible generation mechanisms
DS Han, H Hietala, XC Chen, Y Nishimura, LR Lyons, JJ Liu, HQ Hu, ...
Journal of Geophysical Research: Space Physics 122 (2), 1853-1870, 2017
Direct observations of a surface eigenmode of the dayside magnetopause
MO Archer, H Hietala, MD Hartinger, F Plaschke, V Angelopoulos
Nature communications 10 (1), 615, 2019
Reconnection rates and X line motion at the magnetopause: Global 2D‐3V hybrid‐Vlasov simulation results
S Hoilijoki, U Ganse, Y Pfau‐Kempf, PA Cassak, BM Walsh, H Hietala, ...
Journal of Geophysical Research: Space Physics 122 (3), 2877-2888, 2017
Geoeffective jets impacting the magnetopause are very common
F Plaschke, H Hietala, V Angelopoulos, R Nakamura
Journal of Geophysical Research: Space Physics 121 (4), 3240-3253, 2016
ULF foreshock under radial IMF: THEMIS observations and global kinetic simulation Vlasiator results compared
M Palmroth, M Archer, R Vainio, H Hietala, Y Pfau‐Kempf, S Hoilijoki, ...
Journal of Geophysical Research: Space Physics 120 (10), 8782-8798, 2015
Magnetic field and dynamic pressure ULF fluctuations in coronal-mass-ejection-driven sheath regions
EKJ Kilpua, H Hietala, HEJ Koskinen, D Fontaine, L Turc
Annales Geophysicae 31 (9), 1559-1567, 2013
Impacts of magnetosheath high‐speed jets on the magnetosphere and ionosphere measured by optical imaging and satellite observations
B Wang, Y Nishimura, H Hietala, L Lyons, V Angelopoulos, F Plaschke, ...
Journal of Geophysical Research: Space Physics 123 (6), 4879-4894, 2018
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