@article{Grimmich:2024:10.1029/2023JA032052,
author = {Grimmich, N and Prencipe, F and Turner, DL and Liu, TZ and Plaschke, F and Archer, MO and Nakamura, R and Sibeck, DG and Mieth, JZD and Auster, HU and Constantinescu, OD and Fischer, D and Magnes, W},
doi = {10.1029/2023JA032052},
journal = {Journal of Geophysical Research: Space Physics},
title = {Multi Satellite Observation of a Foreshock Bubble Causing an Extreme Magnetopause Expansion},
url = {http://dx.doi.org/10.1029/2023JA032052},
volume = {129},
year = {2024}
}

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TY  - JOUR
AB  - 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 globally during FBs. However, previous studies on the global impact of FBs have not been able to determine whether the response stems directly from the transverse scale size of the phenomenon or its fast motion over the magnetosphere. Here we present the observation of an FB and its impact on the magnetosphere from different spacecraft scattered over the dayside magnetosphere. We are able to constrain the size of the transverse scale of an FB from direct observations to be about 10 RE. We go on to discuss how the magnetosphere responds to this transient, which seems to have a similar scale across the dayside.
AU  - Grimmich,N
AU  - Prencipe,F
AU  - Turner,DL
AU  - Liu,TZ
AU  - Plaschke,F
AU  - Archer,MO
AU  - Nakamura,R
AU  - Sibeck,DG
AU  - Mieth,JZD
AU  - Auster,HU
AU  - Constantinescu,OD
AU  - Fischer,D
AU  - Magnes,W
DO  - 10.1029/2023JA032052
PY  - 2024///
SN  - 2169-9380
TI  - Multi Satellite Observation of a Foreshock Bubble Causing an Extreme Magnetopause Expansion
T2  - Journal of Geophysical Research: Space Physics
UR  - http://dx.doi.org/10.1029/2023JA032052
VL  - 129
ER  - 

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