145 citations · 810 across the 21 of their papers we have counts for
22 papers
A Comparative Study of 2017 July and 2012 July Complex Eruptions: Are Solar Superstorms "Perfect Storms" in Nature?
Ying D. Liu, Xiaowei Zhao, Huidong Hu +2
It is paramount from both scientific and societal perspectives to understand the generation of extreme space weather. We discuss the formation of solar superstorms based on a compa…
Geometry, Kinematics and Heliospheric Impact of a Large CME-driven Shock in 2017 September
Ying D. Liu, Bei Zhu, Xiaowei Zhao
A powerful coronal mass ejection (CME) occurred on 2017 September 10 near the end of the declining phase of the historically weak solar cycle 24. We obtain new insights concerning…
Roles of photospheric motions and flux emergence in the major solar eruption on 2017 September 6
Rui Wang, Ying D. Liu, J. Todd Hoeksema +2
We study the magnetic field evolution in the active region (AR) 12673 that produced the largest solar flare in the past decade on 2017 September 6. Fast flux emergence is one of th…
Investigation of energetic particle release using multi-point imaging and in situ observations
Bei Zhu, Ying D. Liu, Ryun-Young Kwon +1
The solar eruption on 2012 January 27 resulted in a wide-spread solar energetic particle (SEP) event observed by STEREO A and the near-Earth spacecraft (separated by 108\degree). T…
A Solar Eruption with Relatively Strong Geo-effectiveness Originating from Active Region Peripheral Diffusive Polarities
Rui Wang, Ying D. Liu, Huidong Hu +1
We report the observations of a moderate but relatively intense geo-effective solar eruption on 2015 November 4 from the peripheral diffusive polarities of active region 12443. We…
Kinetic Properties of an Interplanetary Shock Propagating inside a Coronal Mass Ejection
Mingzhe Liu, Ying D. Liu, Zhongwei Yang +2
We investigate the kinetic properties of a typical fast-mode shock inside an interplanetary coronal mass ejection (ICME) observed on 1998 August 6 at 1 AU, including particle distr…
On a solar blowout jet: driven mechanism and the formation of cool and hot components
Yuandeng Shen, Ying D. Liu, Jiangtao Su +2
We present the observations of a blowout jet that experienced two distinct ejection stages. The first stage started from the emergence of a small positive magnetic polarity, which…
Propagation and Interaction Properties of Successive Coronal Mass Ejections in Relation to a Complex Type II Radio Burst
Ying D. Liu, Xiaowei Zhao, Bei Zhu
We examine the propagation and interaction properties of three successive coronal mass ejections (CMEs) from 2001 November 21-22, with a focus on their connection with the behavior…
Multi-spacecraft Observations of the Coronal and Interplanetary Evolution of a Solar Eruption Associated with Two Active Regions
Huidong Hu, Ying D. Liu, Rui Wang +3
We investigate the coronal and interplanetary evolution of a coronal mass ejection (CME) launched on 2010 September 4 from a source region linking two active regions (ARs) 11101 an…
Structure, Propagation and Expansion of a CME-Driven Shock in the Heliosphere: A Revisit of the 2012 July 23 Extreme Storm
Ying D. Liu, Huidong Hu, Bei Zhu +2
We examine the structure, propagation and expansion of the shock associated with the 2012 July 23 extreme coronal mass ejection (CME). Characteristics of the shock determined from…
Sympathetic Solar Filament Eruptions on 2015 March 15
Rui Wang, Ying D. Liu, Ivan Zimovets +3
The 2015 March 15 coronal mass ejection as one of the two that together drove the largest geomagnetic storm of solar cycle 24 so far was associated with sympathetic filament erupti…
Sun-to-Earth Characteristics of the 2012 July 12 Coronal Mass Ejection and Associated Geo-effectiveness
Huidong Hu, Ying D. Liu, Rui Wang +2
We analyze multi-spacecraft observations associated with the 2012 July 12 Coronal Mass Ejection (CME), covering the source region on the Sun from SDO, stereoscopic imaging observat…
Comparison of CME/shock propagation models with heliospheric imaging and in situ observations
Xinhua Zhao, Ying D. Liu, Bernd Inhester +3
The prediction of the arrival time for fast coronal mass ejections (CMEs) and their associated shocks is highly desirable in space weather studies. In this paper, we use two shock…
Global explicit particle-in-cell simulations of the nonstationary bow shock and magnetosphere
Zhongwei Yang, Can Huang, Ying D. Liu +4
We carry out two-dimensional global particle-in-cell simulations of the interaction between the solar wind and a dipole field to study the formation of the bow shock and magnetosph…
Solar Energetic Particle Event Associated with the 2012 July 23 Extreme Solar Storm
Bei Zhu, Ying D. Liu, Janet G. Luhmann +3
We study the solar energetic particle (SEP) event associated with the 2012 July 23 extreme solar storm, for which STEREO and the spacecraft at L1 provide multi-point remote sensing…
On Sun-to-Earth Propagation of Coronal Mass Ejections: 2. Slow Events and Comparison with Others
Ying D. Liu, Huidong Hu, Chi Wang +4
As a follow-up study on Sun-to-Earth propagation of fast coronal mass ejections (CMEs), we examine the Sun-to-Earth characteristics of slow CMEs combining heliospheric imaging and…
The role of active region coronal magnetic field in determining coronal mass ejection propagation direction
Rui Wang, Ying D. Liu, Xinghua Dai +3
We study the role of the coronal magnetic field configuration of an active region in determining the propagation direction of a coronal mass ejection (CME). The CME occurred in the…
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…
Simultaneous Transverse Oscillations of a Prominence and a Filament and Longitudinal Oscillation of another Filament Induced by a Single Shock Wave
Yuandeng Shen, Ying D. Liu, P. F. Chen +1
We present the first stereoscopic and Doppler observations of simultaneous transverse oscillations of a prominence and a filament and longitudinal oscillation of another filament l…
Magnetic Field Restructuring Associated with Two Successive Solar Eruptions
Rui Wang, Ying D. Liu, Zhongwei Yang +1
We examine two successive flare eruptions (X5.4 and X1.3) on 2012 March 7 in the NOAA active region 11429 and investigate the magnetic field reconfiguration associated with the two…
Propagation of the 2012 March Coronal Mass Ejections from the Sun to Heliopause
Ying D. Liu, John D. Richardson, Chi Wang +1
In 2012 March the Sun exhibited extraordinary activities. In particular, the active region NOAA AR 11429 emitted a series of large coronal mass ejections (CMEs) which were imaged b…
On Sun-to-Earth Propagation of Coronal Mass Ejections
Ying D. Liu, Janet G. Luhmann, Noé Lugaz +4
We investigate how coronal mass ejections (CMEs) propagate through, and interact with, the inner heliosphere between the Sun and Earth, a key question in CME research and space wea…