Results 1 to 10 of about 272 (76)

Transient Foreshock Structures Upstream of Mars: Implications of the Small Martian Bow Shock [PDF]

Geophysical Research Letters, 2023
The typical subsolar stand‐off distance of Mars' bow shock is of the order of a solar wind ion convective gyroradius, making it highly non‐planar to incident ions.
H. Madanian, N. Omidi, D. G. Sibeck, L. Andersson, R. Ramstad, S. Xu, J. R. Gruesbeck, S. J. Schwartz, R. A. Frahm, D. A. Brain, P. Kajdic, F. G. Eparvier, D. L. Mitchell, S. M. Curry   +13 more
doaj   +4 more sources

Observations of a new foreshock region upstream of a foreshock bubble's shock [PDF]

Geophysical Research Letters, 2016
Earth's foreshock is a region within the solar wind upstream of Earth's bow shock filled with backstreaming solar wind particles reflected at the shock.
Terry Z. Liu, Heli Hietala, Vassilis Angelopoulos, Drew L. Turner   +3 more
doaj   +2 more sources

Jets Downstream of Collisionless Shocks. [PDF]

Space Sci Rev, 2018
The magnetosheath flow may take the form of large amplitude, yet spatially localized, transient increases in dynamic pressure, known as "magnetosheath jets" or "plasmoids" among other denominations.
Plaschke F, Hietala H, Archer M, Blanco-Cano X, Kajdič P, Karlsson T, Lee SH, Omidi N, Palmroth M, Roytershteyn V, Schmid D, Sergeev V, Sibeck D.   +12 more
europepmc   +4 more sources

Revealing an unexpectedly low electron injection threshold via reinforced shock acceleration. [PDF]

Nat Commun
Collisionless shock waves, found in supernova remnants, interstellar, stellar, and planetary environments, and laboratories, are one of nature’s most powerful particle accelerators.
Raptis S, Lalti A, Lindberg M, Turner DL, Caprioli D, Burch JL.   +5 more
europepmc   +6 more sources

Simultaneous observations of MHD hot flow anomaly and kinetic foreshock bubble and their impacts

Frontiers in Physics
Hot flow anomalies (HFAs) and foreshock bubbles (FBs) are two types of transient phenomena characterized by flow deflected and hot cores bounded by one or two compressional boundaries in the foreshock.
Xi Lu, Xi Lu, Terry Liu, Xingran Chen, Antonius Otto, Hui Zhang   +5 more
doaj   +2 more sources

Jets Downstream of Collisionless Shocks: Recent Discoveries and Challenges. [PDF]

Space Sci Rev
Krämer E, Koller F, Suni J, LaMoury AT, Pöppelwerth A, Glebe G, Mohammed-Amin T, Raptis S, Vuorinen L, Weiss S, Xirogiannopoulou N, Archer M, Blanco-Cano X, Gunell H, Hietala H, Karlsson T, Plaschke F, Preisser L, Roberts O, Simon Wedlund C, Temmer M, Vörös Z.   +21 more
europepmc   +3 more sources

Microscopic, Multipoint Characterization of Foreshock Bubbles With Magnetospheric Multiscale (MMS) [PDF]

Journal of Geophysical Research: Space Physics, 2020
AbstractThis work presents the first detailed analysis of foreshock bubbles (FBs) using high‐resolution Magnetospheric Multiscale (MMS) data. Between October 2017 and January 2019, MMS captured 10 foreshock transient events with burst resolution data that we show are consistent with FBs.
D. L. Turner, T. Z. Liu, L. B. Wilson, I. J. Cohen, D. G. Gershman, J. F. Fennell, J. B. Blake, B. H. Mauk, N. Omidi, J. L. Burch   +9 more
openaire   +1 more source

Statistical study of favorable foreshock ion properties for the formation of hot flow anomalies and foreshock bubbles

Journal of Geophysical Research: Space Physics, 2022
AbstractHot flow anomalies (HFAs) and foreshock bubbles (FBs) are frequently observed in Earth's foreshock, which can significantly disturb the bow shock and therefore the magnetosphere‐ionosphere system and can accelerate particles. Previous statistical studies have identified the solar wind conditions (high solar wind speed and high Mach number, etc.)
Terry Z. Liu, Hui Zhang, Drew Turner, Andrew Vu, Vassilis Angelopoulos   +4 more
openaire   +1 more source

THEMIS observations of tangential discontinuity‐driven foreshock bubbles [PDF]

Geophysical Research Letters, 2015
AbstractForeshock bubbles (FBs), transient ion foreshock phenomena formed from highly concentrated suprathermal foreshock ions upstream of solar wind discontinuities, produce intense disturbances in the magnetosphere‐ionosphere system and can accelerate particles to even higher energies. Rotational discontinuities are known to drive FBs.
Zixu Liu, Drew L. Turner, Vassilis Angelopoulos, Nick Omidi   +3 more
openaire   +1 more source

Multi Satellite Observation of a Foreshock Bubble Causing an Extreme Magnetopause Expansion

Journal of Geophysical Research: Space Physics, 2023
The interaction of a solar wind discontinuity with the backstreaming particles of the Earth’s ion foreshock can generate hot, tenuous plasma transients such as foreshock bubbles (FB) and hot flow anomalies (HFA). These transients are known to have strong effects on the magnetosphere, distorting the magnetopause (MP), either locally during HFAs or ...
Niklas Grimmich, Fabio Prencipe, Drew L. Turner, Terry Z. Liu, Ferdinand Plaschke, Martin O. Archer, Rumi Nakamura, David G. Sibeck, Johannes Z. D. Mieth, Hans‐Ulrich Auster, O. Dragos Constantinescu, David Fischer, Werner Magnes   +12 more
openaire   +1 more source