40 citations · 51 across the 15 of their papers we have counts for
15 papers
Evolution of lunar wake potentials: structure, energy conversion, and their imprints on velocity distributions
Xin An, Vassilis Angelopoulos, Jasper S. Halekas +4
We study the evolution of electric potentials in the lunar wake. The wake potential exhibits two distinct spatial scales. The macroscopic scale arises from solar wind expansion int…
Inferring lunar wake potentials from electron phase space densities
Xin An, Shaosui Xu, Vassilis Angelopoulos +4
Inferring electric potentials from electron phase space density measurements in the lunar wake is complicated by two challenges: the asymmetry between the sunward and anti-sunward…
Ion pickup and velocity space thermalization at outer planet moons
Xin An, Miranda Chang, Hao Cao +2
Ion pickup at the outer planets' active moons is a fundamental plasma process in which newly ionized particles from moon exospheres interact with the ambient corotating plasma and…
Collisionless Phase Mixing Mimics Diffusive Transport in Radiation Belt Observations
Adnane Osmane, Xin An, Anton Artemyev +3
Since the dawn of the space age, observations of energetic particles in planetary radiation belts have been interpreted within a diffusive transport framework, even though the domi…
Cavitons Associated with Ion-Acoustic-Like Waves in Foreshock Transients
Runyi Liu, Terry Liu, Xin An +2
Foreshock transients upstream of the Earth's bow shock, such as foreshock bubbles and hot flow anomalies, are often characterized by reduced-density cores and strong plasma fluctua…
Energy transfer from MHD-scale slow-mode waves to kinetic-scale ion acoustic waves
Xiaofei Shi, Xin An, Vassilis Angelopoulos
Large-amplitude slow-mode waves are commonly observed near Earth's magnetopause. Recent observations show that these waves can occur simultaneously with kinetic-scale ion acoustic…
ARTEMIS observations of electrostatic shocks inside the lunar wake
Terry Z. Liu, Xin An, Vassilis Angelopoulos +1
When the solar wind encounters the Moon, a plasma void forms downstream of it, known as the lunar wake. In regions where the magnetic field is quasi-parallel to the plasma-vacuum b…
Plasma refilling of the lunar wake: plasma-vacuum interactions, electrostatic shocks, and electromagnetic instabilities
Xin An, Vassilis Angelopoulos, Terry Z. Liu +3
A plasma void forms downstream of the Moon when the solar wind impacts the lunar surface. This void gradually refills as the solar wind passes by, forming the lunar wake. We invest…
Excitation of whistler-mode waves by an electron temperature anisotropy in a laboratory plasma
Donglai Ma, Xin An, Jia Han +6
Naturally-occurring whistler-mode waves in near-Earth space play a crucial role in accelerating electrons to relativistic energies and scattering them in pitch angle, driving their…
Cross-scale energy transfer from fluid-scale Alfvén waves to kinetic-scale ion acoustic waves in the Earth's magnetopause boundary layer
Xin An, Anton Artemyev, Vassilis Angelopoulos +3
In space plasmas, large-amplitude Alfvén waves can drive compressive perturbations, accelerate ion beams, and lead to plasma heating and the excitation of ion acoustic waves at kin…
Resonance of low-frequency electromagnetic and ion-sound modes in the solar wind
I. Y. Vasko, F. S. Mozer, T. Bowen +6
Parker Solar Probe measurements have recently shown that coherent fast magnetosonic and Alfvén ion-cyclotron waves are abundant in the solar wind and can be accompanied by higher-f…
Beam-driven Electron Cyclotron Harmonic and Electron Acoustic Waves as Seen in Particle-In-Cell Simulations
Xu Zhang, Xin An, Vassilis Angelopoulos +3
Recent study has demonstrated that electron cyclotron harmonic (ECH) waves can be excited by a low energy electron beam. Such waves propagate at moderately oblique wave normal angl…
Equatorial source of oblique electromagnetic ion cyclotron waves: peculiarities in the ion distribution function
David S. Tonoian, Xiao-Jia Zhang, Anton Artemyev +1
Electromagnetic ion cyclotron (EMIC) waves are important for Earth's inner magnetosphere as they can effectively drive relativistic electron losses to the atmosphere and energetic…
Properties of Intense Electromagnetic Ion Cyclotron Waves: Implications for Quasi-linear, Nonlinear, and Nonresonant Wave-Particle Interactions
Xiaofei Shi, Anton Artemyev, Xiao-Jia Zhang +3
Resonant interactions between relativistic electrons and electromagnetic ion cyclotron (EMIC) waves provide an effective loss mechanism for this important electron population in th…
Resonant excitation of whistler waves by a helical electron beam
Xin An, Bart Van Compernolle, Jacob Bortnik +3
Chorus-like whistler-mode waves that are known to play a fundamental role in driving radiation-belt dynamics are excited on the Large Plasma Device by the injection of a helical el…