90 citations · 609 across the 33 of their papers we have counts for
6 papers · 1 filter
Formation of a Magnetic Cloud from the Merging of Two Successive Coronal Mass Ejections
Chong Chen, Ying D. Liu, Bei Zhu +2
On 2022 March 28 two successive coronal mass ejections (CMEs) were observed by multiple spacecraft and resulted in a magnetic cloud (MC) at 1 AU. We investigate the propagation and…
MMS direct observations of kinetic-scale shock self-reformation
Zhongwei Yang, Ying D. Liu, Andreas Johlander +6
Studies of shocks have long suggested that a shock can undergo cyclically self-reformation in a time scale of ion cyclotron period. This process has been proposed as a primary mech…
A Stealth CME Bracketed between Slow and Fast Wind Producing Unexpected Geo-effectiveness
Wen He, Ying D. Liu, Huidong Hu +2
We investigate how a weak coronal mass ejection (CME) launched on 2016 October 8 without obvious signatures in the low corona produced a relatively intense geomagnetic storm. Remot…
Plasma and Magnetic Field Characteristics of Solar Coronal Mass Ejections in Relation to Geomagnetic Storm Intensity and Variability
Ying D. Liu, Huidong Hu, Rui Wang +5
The largest geomagnetic storms of solar cycle 24 so far occurred on 2015 March 17 and June 22 with minima of and nT, respectively. Both of the geomagneti…
Impact of pickup ions on the shock front nonstationarity and energy dissipation of the heliospheric termination shock: Two-dimensional full particle simulations and comparison with Voyager 2 observations
Zhongwei Yang, Ying D. Liu, John D Richardson +3
The transition between the supersonic solar wind and the subsonic heliosheath, the termination shock (TS), was observed by Voyager 2 (V2) on 2007 August 31-September 1 at a distanc…
Sun-to-Earth Characteristics of Two Coronal Mass Ejections Interacting near 1 AU: Formation of a Complex Ejecta and Generation of a Two-Step Geomagnetic Storm
Ying D. Liu, Zhongwei Yang, Rui Wang +3
On 2012 September 30 - October 1 the Earth underwent a two-step geomagnetic storm. We examine the Sun-to-Earth characteristics of the coronal mass ejections (CMEs) responsible for…