A5100366461- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Stellar, planetary, and galactic studies
- Ionosphere and magnetosphere dynamics
- Geomagnetism and Paleomagnetism Studies
- Magnetic properties of thin films
- Solar Radiation and Photovoltaics
- Spectroscopy and Quantum Chemical Studies
- Magnetic Properties and Applications
- Spacecraft Dynamics and Control
- Protein Hydrolysis and Bioactive Peptides
- Gamma-ray bursts and supernovae
- Proteins in Food Systems
- Planetary Science and Exploration
- Space Satellite Systems and Control
- Physics of Superconductivity and Magnetism
- Geophysics and Gravity Measurements
- Radiation Therapy and Dosimetry
- Molecular spectroscopy and chirality
- Advanced Chemical Physics Studies
- Biochemical effects in animals
- ZnO doping and properties
- Acoustic Wave Resonator Technologies
- Atmospheric Ozone and Climate
- Advanced NMR Techniques and Applications
University of Science and Technology of China
2018-2023
Center for Excellence in Molecular Cell Science
2022
Purple Mountain Observatory
2022
Liaoning Normal University
2022
Lanzhou University
2019-2020
China Astronaut Research and Training Center
2018
Abstract On 4 February 2022, 38 Starlink satellites were destroyed by the geomagnetic storm, which brought significant financial, aerospace and public influences. In this letter, we reveal space weather process during 3–4 2022 disturbances, from Sun all way to satellite orbiting atmosphere. Initiated an M1.0 class flare following coronal mass ejection (CME), a moderate storm was stimulated on 3rd CME arrival at Earth. Subsequently, another triggered 4th passage of CME. Model simulations...
Abstract On 28 October 2021, solar eruptions caused intense and long‐lasting energetic particle (SEP) flux enhancements observed by spacecraft located over a wide longitudinal range in the heliosphere. SEPs arriving at Earth 73rd ground level enhancement (GLE) event recorded ground‐based neutron monitors. In particular, this is also first GLE seen on surface of three planetary bodies, Earth, Moon, Mars, radiation detectors as shown study. We derive event‐integrated proton spectrum from...
Abstract Two recent extremely fast coronal mass ejections (CMEs) are of particular interest. The first one originated from the southern hemisphere on 2021 October 28 and caused strong solar energetic particle (SEP) events over a wide longitude range Earth, STEREO-A, to Mars. However, other one, originating center Earth-viewed disk 5 days later, left weak SEP signatures in heliosphere. Based white-light images CMEs Solar Heliospheric Observatory (SOHO) Ahead Terrestrial Relations (STEREO-A),...
Abstract Magnetic flux rope (MFR) is the core structure of greatest eruptions, that is, coronal mass ejections (CMEs), on Sun, and magnetic clouds are posteruption MFRs in interplanetary space. There a strong debate about whether or not MFR exists prior to CME how forms/grows through reconnection during eruption. Here we report rare event, which cloud was observed sequentially by four spacecraft near Mercury, Venus, Earth, Mars, respectively. With aids uniform‐twist model newly developed...
Abstract Deflection of coronal mass ejections (CMEs) in the interplanetary space, especially ecliptic plane, serves as an important factor deciding whether CMEs arrive at Earth. Observational studies have shown evidence for deflection, whose detailed dynamic processes, however, remain obscure. Here we developed a 2.5D ideal magnetohydrodynamic simulation to study propagation traveling with different speeds heliospheric equatorial plane. The confirms existence CME deflection which is related...
Large-scale solar eruptions are believed to have a magnetic flux rope as the core structure. However, it remains elusive how builds up and what triggers its eruption. Recent observations found that prominence erupted following multiple episodes of "flux feeding". During each episode, chromospheric fibril rose merged with lying above. In this letter, we carried out 2.5-dimensional magnetohydrodynamic (MHD) numerical simulations investigate whether flux-feeding mechanism can explain such an...
Abstract Based on the Heliospheric Imager-1 images of STEREO twin spacecraft, we established CORrelation-Aided Reconstruction (CORAR) technique to locate and reconstruct 3D structures solar wind transients in interplanetary space. Here, extend CORAR method COR2 board study evolution small-scale outer corona from 2010 January May. We confirm that can be located reconstructed well by comparing results with those a self-similar expanding model. The speed distribution generally shows typical...
Abstract The Heliospheric Imagers (HI) onboard the two spacecraft of Solar Terrestrial Relations Observatory (STEREO) provided white‐light images transients in solar wind from dual perspectives 2007 to 2014. In this paper, we develop a new method identify and locate automatically simultaneous inner telescopes, known as HI‐1, based on correlation analysis. Correlation coefficient (cc) maps along Sun‐Earth line are constructed for period 1 January 2010 28 February 2011. From maps, propagating...
Introduction: Large-scale solar eruptive activities have a close relationship with coronal magnetic flux ropes. Previous numerical studies found that the equilibrium of rope system could be disrupted if axial exceeds critical value, so catastrophe occurs, initiating to erupt. Further discovered does not necessarily exist: The certain photospheric distributions non-catastrophic. It is noteworthy most previous are under ideal magnetohydrodynamic (MHD) condition, it still elusive whether there...
The solar wind transients propagating out in the inner heliosphere can be observed white-light images from Heliospheric Imager-1 (HI1), an instrument of Sun Earth Connection Coronal and Investigation (SECCHI) on board Solar Terrestrial Relations Observatory (STEREO), two perspectives. spatial velocity distribution inside is key to understanding their dynamic evolution processes. We generated a map 3D space based 2D used it estimate expansion rate as well some kinematic properties transients....
It is widely accepted that coronal magnetic flux ropes are the core structures of large-scale solar eruptive activities, which inflict dramatic impacts on solar-terrestrial system. Previous studies have demonstrated varying properties a rope system could result in catastrophe rope, may trigger activities. Since total mass also plays an important role stabilizing we use 2.5-dimensional magnetohydrodynamic (MHD) numerical simulations this letter to investigate how evolves as its varies. found...
In this article, we present the multi-viewpoint and multi-wavelength analysis of an atypical solar jet based on data from Solar Dynamics Observatory, SOlar, Heliospheric TErrestrial RElations Observatory. It is usually believed that coronal mass ejections (CMEs) are developed large scale eruptions in lower atmosphere. However, kinematical spatial evolution 2013 April 28 guide us was clearly associated with a narrow CME having width approx 25 degrees speed 450 km/s. To better understand link...
Abstract Recently, we developed the correlation-aided reconstruction (CORAR) method to reconstruct solar wind inhomogeneous structures, or transients, using dual-view white-light images. This is proved be useful for studying morphological and dynamical properties of transients like blobs coronal mass ejection (CME), but accuracy may affected by separation angle between two spacecrafts. Based on CME events from Heliospheric Imager Join Catalogue in Cataloguing, Analysis Techniques Service...
Context. In previous studies, we applied the CORrelation-Aided Reconstruction (CORAR) technique to reconstruct three-dimensional (3D) structures of transients in field view (FOV) Heliospheric Imager-1 (HI-1) on board spacecraft STEREO-A/B. The reconstruction quality depends stereoscopic angle ( θ Sun ), that is, between lines connecting and two spacecraft. Aims. To apply CORAR images from coronagraphs COR-2 STEREO, impact coronal should be explored, optimal for found. Methods. We method...
To better understand the physical processes associated with Jovian decametric (DAM) radio emissions, we present statistical study of DAMs and inferred characteristics DAM sources based on multi-view observation from Wind STEREO spacecraft. The distribution apparent rotation speed derived multiple spacecraft suggests that Io-related is in range 0.15-0.6{\Omega}_J non-Io-DAMs between 0.7-1.2{\Omega}_J. Based method Wang et al. (2020), locate infer their emission angles electron energies....
High frequency properties of exchange-coupled multilayers are important to develop future fast switching spintronic devices. Here, we report an experimental investigation temperature-dependent high in [Co/Pd]n/Py multilayer thin films. The results demonstrate that the linewidth varies with number cycles at room temperature. However, damping slightly decreases increasing repetitions Co/Pd. By fitting relationship between and angle (the out-of-plane azimuthal external magnetic field), found a...
White-light images from Heliospheric Imager-1 (HI1) onboard the Solar Terrestrial Relations Observatory (STEREO) provide 2-dimensional (2D) global views of solar wind transients traveling in inner heliosphere two perspectives. How to retrieve hidden three-dimensional (3D) features these 2D is intriguing but challenging. In our previous work (Li et al., 2018), a 'correlation-aided' method developed recognize propagating along Sun-Earth line based on simultaneous HI1 STEREO spacecraft. Here...
Abstract A comet plasma tail is a product of the interaction between solar wind and comet’s coma, has long been studied as natural probe condition. We previously developed method to derive speed from dual-view observations tails. Here we improve use single-view by assuming radially propagating apply it two comets, C/2011 W3 (Lovejoy) C/2012 S1 (ISON) observed coronagraphs on board Solar Heliospheric Observatory STEREO. compare results simulations tomography our previous method, find they are...
The ability to accurately and rapidly evaluate the intermolecular many-body polarization effect of water system is very important for computer simulations biomolecule in aqueous. In this paper, a scheme proposed based on polarizable dipole-dipole interaction model used estimate clusters. We use bond-dipole-based function energy. regard two OH bonds molecule as bond-dipoles set permanent bond-dipole moment be 1.51 Debye. induced via simple formula which only one correction factor needed....