@article{Hietala:2018:10.1002/2017GL076525,
author = {Hietala, H and Phan, TD and Angelopoulos, V and Oieroset, M and Archer, MO and Karlsson, T and Plaschke, F},
doi = {10.1002/2017GL076525},
journal = {Geophysical Research Letters},
pages = {1732--1740},
title = {In situ observations of a magnetosheath high-speed jet triggering magnetopause reconnection},
url = {http://dx.doi.org/10.1002/2017GL076525},
volume = {45},
year = {2018}
}

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TY  - JOUR
AB  - Magnetosheath highspeed jets—localized dynamic pressure enhancements typically of ∼1 Earth radius in size—impact the dayside magnetopause several times per hour. Here we present the first in situ measurements suggesting that such an impact triggered magnetopause reconnection. We use observations from the five Time History of Events and Macroscale Interactions during Substorms spacecraft in a stringofpearls configuration on 7 August 2007. The spacecraft recorded magnetopause inandout motion during an impact of a magnetosheath jet (VN∼−300 km/s along the magnetopause normal direction). There was no evidence for reconnection for the preimpact crossing, yet three probes observed reconnection after the impact. We infer that the jet impact compressed the originally thick (60–70 di), high magnetic shear (140–160° magnetopause until it was thin enough for reconnection to occur. Magnetosheath highspeed jets could therefore act as a driver for bursty dayside reconnection.
AU  - Hietala,H
AU  - Phan,TD
AU  - Angelopoulos,V
AU  - Oieroset,M
AU  - Archer,MO
AU  - Karlsson,T
AU  - Plaschke,F
DO  - 10.1002/2017GL076525
EP  - 1740
PY  - 2018///
SN  - 0094-8276
SP  - 1732
TI  - In situ observations of a magnetosheath high-speed jet triggering magnetopause reconnection
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1002/2017GL076525
UR  - http://hdl.handle.net/10044/1/61438
VL  - 45
ER  - 

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