64 citations · 467 across the 27 of their papers we have counts for
27 papers
Is there a Dynamic Difference between Stealthy and Standard CMEs?
Beili Ying, Alessandro Bemporad, Li Feng +2
Stealthy Coronal Mass Ejections (CMEs), lacking low coronal signatures, may result in significant geomagnetic storms. However, the mechanism of stealthy CMEs is still highly debate…
Spatially Resolved Moving Radio Burst in Association with an EUV Wave
Lei Lu, Li Feng, Weiqun Gan
Coronal mass ejections (CMEs) are large clouds of magnetized plasma ejected from the Sun, and are often associated with acceleration of electrons that can result in radio emission…
Three-dimensional analyses of an aspherical coronal mass ejection and its driven shock
Beili Ying, Li Feng, Bernd Inhester +4
Context. Observations reveal that shocks can be driven by fast coronal mass ejections (CMEs) and play essential roles in particle accelerations. A critical ratio, , derived from…
Observational Signatures of Tearing Instability in the Current Sheet of a Solar Flare
Lei Lu, Li Feng, Alexander Warmuth +7
Magnetic reconnection is a fundamental physical process converting magnetic energy into not only plasma energy but also particle energy in various astrophysical phenomena. In this…
Quasi-Periodic Pulsations Detected in Ly and Nonthermal Emissions During Solar Flares
Lei Lu, Dong Li, Zongjun Ning +2
We report quasi-periodic pulsations (QPPs) with double periods during three solar flares (viz. SOL2011-Feb-15T01:44, SOL2011-Sep-25T04:31, SOL2012-May-17T01:25). The flare QPPs wer…
Analysis of type II and type III radio bursts associated with SEPs from non-interacting/interacting radio-loud CMEs
P Pappa Kalaivani, O Prakash, A Shanmugaraju +4
We analyze radio bursts observed in events with interacting/non-interacting CMEs that produced major SEPs (Ip 10 MeV) fromApril 1997 to December 2014.We compare properties of m…
Population of Bright Plume Threads in Solar Polar Coronal Holes
Zhenghua Huang, Quanhao Zhang, Lidong Xia +8
Coronal holes are well accepted to be source regions of the fast solar wind. As one of the common structures in coronal holes, coronal plumes might contribute to the origin of the…
Three-Dimensional Reconstructions of Coronal Wave Surfaces Using a New Mask-Fitting Method
Li Feng, Lei Lu, Bernd Inhester +5
Coronal waves are large-scale disturbances often driven by coronal mass ejections (CMEs). We investigate a spectacular wave event on 7 March 2012, which is associated with an X5.4…
Dynamics evolution of a solar active-region filament from quasi-static state to eruption: rolling motion, untwisting motion, material transfer, and chirality
X. L. Yan, Q. L. Li, G. R. Chen +5
To better understand magnetic structure and eruptive process of solar filaments, a solar active-region filament (labeled F2) eruption associated with a B-class flare was investigat…
Extensive Study of a Coronal Mass Ejection with UV and WL coronagraphs: the need for multi-wavelength observations
Beili Ying, Alessandro Bemporad, Li Feng +3
Coronal Mass Ejections (CMEs) often show different features in different band-passes. By combining data in white-light (WL) and ultraviolet (UV) bands, we have applied different te…
Quasi-periodic pulsation detected in Lyman-alpha emission during solar flares
Dong Li, Lei Lu, Zongjun Ning +3
We investigated the quasi-periodic pulsation (QPP) in Lyman-alpha, X-ray and extreme-ultraviolet (EUV) emissions during two solar flares, i.e., an X-class (SOL2012-01-27T) and a C-…
Spectroscopic and Stereoscopic Observations of the Solar Jets
Lei Lu, Li Feng, Ying Li +3
We present a comprehensive study of a series of recurrent jets that occurred at the periphery of the NOAA active region 12114 on 2014 July 7. These jets were found to share the sam…
A New Automatic Tool for CME Detection and Tracking with Machine Learning Techniques
Pengyu Wang, Yan Zhang, Li Feng +7
With the accumulation of big data of CME observations by coronagraphs, automatic detection and tracking of CMEs has proven to be crucial. The excellent performance of convolutional…
First Determination of 2D Speed Distribution within the Bodies of Coronal Mass Ejections with Cross-Correlation Analysis
Beili Ying, Alessandro Bemporad, Silvio Giordano +5
The determination of the speed of Coronal Mass Ejections (CMEs) is usually done by tracking brighter features (such as the CME front and core) in visible light coronagraphic images…
On the error analyses of polarization measurements of the white-light coronagraph aboard ASO-S
Li Feng, Hui Li, Bernd Inhester +4
The Advanced Space-based Solar Observatory (ASO-S) mission aims to explore two most spectacular eruptions in the Sun: solar flares and coronal mass ejections (CMEs), and their magn…
Searching for GeV gamma-ray emission from the bulge of M31
Li Feng, Zhiyuan Li, Meng Su +2
The three major large-scale, diffuse -ray structures of the Milky Way are the Galactic disk, a bulge-like GeV excess towards the Galactic center, and the Fermi bubble. Whether s…
Is the enhancement of type II radio bursts during CME interactions related to the associated solar energetic particle event?
Liu-Guan Ding, Zhi-Wei Wang, Li Feng +2
We investigated 64 pairs of interacting-CME events identified by the simultaneous observations of SOHO and STEREO spacecraft from 2010 January to 2014 August, to examine the relati…
Properties of a Small-scale Short-duration Solar Eruption with a Driven Shock
Beili Ying, Li Feng, Lei Lu +5
Large-scale solar eruptions have been extensively explored over many years. However, the properties of small-scale events with associated shocks have been rarely investigated. We p…
Characteristics of events with metric-to-decahectometric type II radio bursts associated with CMEs and flares in relation to SEP events
O. Prakash, Li Feng, G. Michalek +4
A gradual solar energetic particle (SEP) event is thought to happen when particles are accelerated at a shock due to a fast coronal mass ejection (CME). To quantify what kind of so…
Observational Evidence of Magnetic Reconnection for Brightenings and Transition Region Arcades in IRIS observations
Jie Zhao, Brigitte Schmieder, Hui Li +4
By using a new method of forced-field extrapolation, we study the emerging flux region AR 11850 observed by the Interface Region Imaging Spectrograph (IRIS) and Solar Dynamical Obs…
Measure the Propagation of a halo CME and Its Driven Shock with the Observations from a Single Perspective at Earth
Lei Lu, Bernd Inhester, Li Feng +2
We present a detailed study of an earth-directed coronal mass ejection (Full halo CME) event happened on 2011 February 15 making use of white light observations by three coronagrap…
On the Power-Law Distributions of X-ray Fluxes from Solar Flares Observed with GOES
You-ping Li, Li Feng, Ping Zhang +2
Power-law frequency distributions of the peak flux of solar flare X-ray emission have been studied extensively and attributed to a system of self-organized criticality (SOC). In th…
Why does the apparent mass of a coronal mass ejection increase?
Li Feng, Yuming Wang, Fang Shen +4
Mass is one of the most fundamental parameters characterizing the dynamics of a coronal mass ejection (CME). It has been found that CME apparent mass measured from the brightness e…
Radial Flow Pattern of a Slow CME
Li Feng, Bernd Inhester, Weiqun Gan
Height-time plots of the leading edge of coronal mass ejections (CME) have often been used to study CME kinematics. We propose a new method to analyze the CME kinematics in more de…