186 citations · 240 across the 14 of their papers we have counts for
15 papers
Effects of Coulomb Collisions on the Structures of Fast Magnetosonic Shocks
Michael B. Farnell, Fan Guo, Yi-Hsin Liu +1
We present fully kinetic particle-in-cell simulations to demonstrate qualitative effects of binary Coulomb collisions on fast magnetosonic shocks. We find that with sufficiently hi…
Bayesian Statistical Inversion for High-Dimensional Computer Model Output and Spatially Distributed Counts
Steven D. Barnett, Robert B. Gramacy, Lauren J. Beesley +4
Data collected by the Interstellar Boundary Explorer (IBEX) satellite, recording heliospheric energetic neutral atoms (ENAs), exhibit a phenomenon that has caused space scientists…
Effects of Multi-scale Coupling on Particle Acceleration and Energy Partition in Magnetic Reconnection
Alexander Velberg, Adam Stanier, Xiaocan Li +3
The interplay between kinetic and macroscopic scales during magnetic reconnection is investigated using particle-in-cell simulations of magnetic island coalescence in the strongly-…
Particle Injection Problem in Magnetic Reconnection and Turbulence
Fan Guo, Omar French, Qile Zhang +2
Magnetic reconnection and turbulence in magnetically-dominated environments have been proposed as important nonthermal particle acceleration mechanisms that generate high energy pa…
Modeling of Ionization and Recombination Processes in Plasma with Arbitrary Non-Maxwellian Electron Distributions
Chengcai Shen, Xiaocan Li, Yuan-Kuen Ko +4
In astronomical environments, the high-temperature emission of plasma mainly depends on ion charge states, which requires accurate analysis of the ionization and recombination proc…
Multidisciplinary Science in the Multimessenger Era
Eric Burns, Christopher L. Fryer, Ivan Agullo +82
Astrophysical observations of the cosmos allow us to probe extreme physics and answer foundational questions on our universe. Modern astronomy is increasingly operating under a hol…
Novel Methods for Simulating Astrophysical Plasmas and the Coherent Emission in Fast Radio Bursts
Nicole M. Lloyd-Ronning, Patrick Kilian, Guangye Chen +4
We present particle-in-cell simulations of one dimensional relativistic electromagnetic shocks in a uniform magnetic field, for a range of magnetic field strengths, plasma temperat…
Compression Acceleration of Protons and Heavier Ions at the Heliospheric Current Sheet
Giulia Murtas, Xiaocan Li, Fan Guo
Recent observations by Parker Solar Probe (PSP) suggest that protons and heavier ions are accelerated to high energies by magnetic reconnection at the heliospheric current sheet (H…
Energetic Electrons Accelerated and Trapped in a Magnetic Bottle above a Solar Flare Arcade
Bin Chen, Xiangliang Kong, Sijie Yu +6
Where and how flares efficiently accelerate charged particles remains an unresolved question. Recent studies revealed that a "magnetic bottle" structure, which forms near the botto…
Plasma Dynamics and Nonthermal Particle Acceleration in 3D Nonrelativistic Magnetic Reconnection
Qile Zhang, Fan Guo, William Daughton +2
Understanding plasma dynamics and nonthermal particle acceleration in 3D magnetic reconnection has been a long-standing challenge. In this paper, we explore these problems by perfo…
Low-energy Injection and Nonthermal Particle Acceleration in Relativistic Magnetic Turbulence
Divjyot Singh, Omar French, Fan Guo +1
Relativistic magnetic turbulence has been proposed as a process for producing nonthermal particles in high-energy astrophysics. Particle energization may be contributed by both mag…
Proton Acceleration in Low-beta Magnetic Reconnection with Energetic Particle Feedback
Jeongbhin Seo, Fan Guo, Xiaocan Li +1
Magnetic reconnection regions in space and astrophysics are known as active particle acceleration sites. There is ample evidence showing that energetic particles can take a substan…
Modeling the inner part of the jet in M87: Confronting jet morphology with theory
Hai Yang, Feng Yuan, Hui Li +7
The formation of jets in black hole accretion systems is a long-standing problem. It has been proposed that a jet can be formed by extracting the rotation energy of the black hole…
Magnetic Reconnection and Associated Particle Acceleration in High-energy Astrophysics
Fan Guo, Yi-Hsin Liu, Seiji Zenitani +1
Magnetic reconnection occurs ubiquitously in the universe and is often invoked to explain fast energy release and particle acceleration in high-energy astrophysics. The study of re…
Why does steady-state magnetic reconnection have a maximum local rate of order 0.1?
Yi-Hsin Liu, M. Hesse, F. Guo +4
Simulations suggest collisionless steady-state magnetic reconnection of Harris-type current sheets proceeds with a rate of order 0.1, independent of dissipation mechanism. We argue…