T. D. Phan
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View article: The Impact of Alfvénic Shear Flow on Magnetic Reconnection and Turbulence
The Impact of Alfvénic Shear Flow on Magnetic Reconnection and Turbulence Open
Magnetic reconnection is a fundamental and omnipresent energy conversion process in plasma physics. Novel observations of fields and particles from Parker Solar Probe (PSP) have shown the absence of reconnection in a large number of curren…
View article: Analysis of WISPR Images of the Near-Sun Heliospheric Current Sheet Region from Parker Solar Probe Encounters 4 and 5 and Comparison with the in Situ Observations
Analysis of WISPR Images of the Near-Sun Heliospheric Current Sheet Region from Parker Solar Probe Encounters 4 and 5 and Comparison with the in Situ Observations Open
We present an analysis of Wide-field Imager for Solar PRobe (WISPR) images of the near-Sun heliospheric current sheet (HCS) region from the Parker Solar Probe (PSP) in 2020 January and June. Previous analysis of the solar wind data from PS…
View article: MMS Observations of a Compressed, Strongly Driven Magnetopause during the 2024 Mother's Day Storm
MMS Observations of a Compressed, Strongly Driven Magnetopause during the 2024 Mother's Day Storm Open
View article: Magnetopause Boundary Layers in Low Mach CME-Driven Storm Environment
Magnetopause Boundary Layers in Low Mach CME-Driven Storm Environment Open
View article: Kinetic Simulation of Magnetic Reconnection with Pickup Ions: Shell Stability and Reconnection Rate Analysis
Kinetic Simulation of Magnetic Reconnection with Pickup Ions: Shell Stability and Reconnection Rate Analysis Open
Collisionless magnetic reconnection is postulated to be active in many regions of the heliosphere, where the physics and formation of heliospheric structures are influenced by pickup ions (PUIs). Recent investigations suggest that the pres…
View article: Parker Solar Probe Observations of a Highly Energetic and Asymmetric Reconnecting Heliospheric Current Sheet during Encounter 13
Parker Solar Probe Observations of a Highly Energetic and Asymmetric Reconnecting Heliospheric Current Sheet during Encounter 13 Open
We report Parker Solar Probe observations of reconnection during an unusual heliospheric current sheet (HCS) crossing at 14.8 solar radii that occurred ∼15 hr after the passage of a CME. The HCS was surrounded by unusually low solar wind d…
View article: Energy Partitioning Between Thermal and Non‐Thermal Electrons and Ions in Magnetotail Reconnection
Energy Partitioning Between Thermal and Non‐Thermal Electrons and Ions in Magnetotail Reconnection Open
Magnetic reconnection is an explosive energy release event. It plays an important role in accelerating particles to high non‐thermal energies. These particles often exhibit energy spectra characterized by a power‐law distribution. However,…
View article: Magnetic Reconnection–driven Energization of Protons up to ∼400 keV at the Near-Sun Heliospheric Current Sheet
Magnetic Reconnection–driven Energization of Protons up to ∼400 keV at the Near-Sun Heliospheric Current Sheet Open
We report observations of direct evidence of energetic protons being accelerated above ∼400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA’s Parker Solar Probe (PSP) at a distance of ∼16.25 solar…
View article: Scaling of Particle Heating in Shocks and Magnetic Reconnection
Scaling of Particle Heating in Shocks and Magnetic Reconnection Open
Particles are heated efficiently through energy conversion processes, such as shocks and magnetic reconnection, in collisionless plasma environments. While empirical scaling laws for the temperature increase have been obtained, the precise…
View article: The Diffusion Interaction Region of Dayside Magnetic Reconnection
The Diffusion Interaction Region of Dayside Magnetic Reconnection Open
Magnetic reconnection is a universal process that allows for the transfer and release of energy previously stored in a magnetic field configuration. At Earth, this process can occur in the boundary layer between Earth's magnetic field and …
View article: Phase-space contributions to pressure and stress tensors in the electron diffusion region of magnetic reconnection
Phase-space contributions to pressure and stress tensors in the electron diffusion region of magnetic reconnection Open
Magnetic reconnection is a fundamental plasma process in collisionless plasma that governs the transfer of magnetic energy to plasma energy through a change in magnetic topology. The reconnection electric field, or equivalently, the rate a…
View article: Scaling of Particle Heating in Shocks and Magnetic Reconnection
Scaling of Particle Heating in Shocks and Magnetic Reconnection Open
Particles are heated efficiently through energy conversion processes such as shocks and magnetic reconnection in collisionless plasma environments. While empirical scaling laws for the temperature increase have been obtained, the precise m…
View article: Ohm’s Law, the Reconnection Rate, and Energy Conversion in Collisionless Magnetic Reconnection
Ohm’s Law, the Reconnection Rate, and Energy Conversion in Collisionless Magnetic Reconnection Open
View article: Relativistic Electron Acceleration and the “Ankle” Spectral Feature in Earth’s Magnetotail Reconnection
Relativistic Electron Acceleration and the “Ankle” Spectral Feature in Earth’s Magnetotail Reconnection Open
Electrons are accelerated to high, nonthermal energies during explosive energy-release events in space, such as magnetic reconnection. However, the properties and acceleration mechanisms of relativistic electrons directly associated with t…
View article: Application of Scan-to-BIM and geographic information systems in restoring the current status of buildings
Application of Scan-to-BIM and geographic information systems in restoring the current status of buildings Open
Because many existing structures, such as administrative, heritage, or university buildings that were constructed several decades prior, do not have sufficient paperwork and plans, the digital restoration of records for future management i…
View article: Relativistic Electron Acceleration and the 'Ankle' Spectral Feature in Earth's Magnetotail Reconnection
Relativistic Electron Acceleration and the 'Ankle' Spectral Feature in Earth's Magnetotail Reconnection Open
Electrons are accelerated to high, non-thermal energies during explosive energy-release events in space, such as magnetic reconnection. However, the properties and acceleration mechanisms of relativistic electrons directly associated with …
View article: Magnetic reconnection-driven energization of protons up to 400 keV at the near-Sun heliospheric current sheet
Magnetic reconnection-driven energization of protons up to 400 keV at the near-Sun heliospheric current sheet Open
We report observations of direct evidence of energetic protons being accelerated above ~400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA's Parker Solar Probe (PSP) at a distance of ~16.25 solar…
View article: Statistical Study of Energy Transport and Conversion in Electron Diffusion Regions at Earth's Dayside Magnetopause
Statistical Study of Energy Transport and Conversion in Electron Diffusion Regions at Earth's Dayside Magnetopause Open
The electron diffusion region (EDR) is a key region for magnetic reconnection, but the typical energy transport and conversion in EDRs is still not well understood. In this work, we perform a statistical study of 80 previously published ne…
View article: Scaling of Ion Bulk Heating in Magnetic Reconnection Outflows for the High-Alfvén-speed and Low-β Regime in Earth’s Magnetotail
Scaling of Ion Bulk Heating in Magnetic Reconnection Outflows for the High-Alfvén-speed and Low-β Regime in Earth’s Magnetotail Open
We survey 20 reconnection outflow events observed by Magnetospheric MultiScale in the low- β and high-Alfvén-speed regime of the Earth’s magnetotail to investigate the scaling of ion bulk heating produced by reconnection. The range of infl…
View article: Multiple Subscale Magnetic Reconnection Embedded inside a Heliospheric Current Sheet Reconnection Exhaust: Evidence for Flux Rope Merging
Multiple Subscale Magnetic Reconnection Embedded inside a Heliospheric Current Sheet Reconnection Exhaust: Evidence for Flux Rope Merging Open
We report observations of multiple subscale reconnecting current sheets embedded inside a large-scale heliospheric current sheet (HCS) reconnection exhaust. The discovery was made possible by the unusual skimming trajectory of Parker Solar…
View article: MESSENGER Observations of Mercury's Planetary Ion Escape Rates and Their Dependence on True Anomaly Angle
MESSENGER Observations of Mercury's Planetary Ion Escape Rates and Their Dependence on True Anomaly Angle Open
This study investigates the escape of Mercury's sodium‐group ions (Na + ‐group, including ions with m/q from 21 to 30 amu/e) and their dependence on true anomaly angle (TAA), that is, Mercury's orbital phase around the Sun, using measureme…
View article: Ohm's Law, the Reconnection Rate, and Energy Conversion in Collisionless Magnetic Reconnection
Ohm's Law, the Reconnection Rate, and Energy Conversion in Collisionless Magnetic Reconnection Open
Magnetic reconnection is a ubiquitous plasma process that transforms magnetic energy into particle energy during eruptive events throughout the universe. Reconnection not only converts energy during solar flares and geomagnetic substorms t…
View article: Out-of-plane Parallel Current in the Diffusion Regions: The Interaction Between Diffusion Region Systems and their Impact on the Outer EDR
Out-of-plane Parallel Current in the Diffusion Regions: The Interaction Between Diffusion Region Systems and their Impact on the Outer EDR Open
Dayside magnetic reconnection allows for the transfer of the solar wind's energy into Earth's magnetosphere. This process takes place in electron diffusion regions (EDRs) embedded in ion diffusion regions (IDRs), which form in the magnetop…
View article: Statistical Observations of Proton‐Band Electromagnetic Ion Cyclotron Waves in the Outer Magnetosphere: Full Wavevector Determination
Statistical Observations of Proton‐Band Electromagnetic Ion Cyclotron Waves in the Outer Magnetosphere: Full Wavevector Determination Open
Electromagnetic Ion Cyclotron (EMIC) waves mediate energy transfer from the solar wind to the magnetosphere, relativistic electron precipitation, or thermalization of the ring current population, to name a few. How these processes take pla…
View article: Multispecies Ion Acceleration in 3D Magnetic Reconnection with Hybrid-Kinetic Simulations
Multispecies Ion Acceleration in 3D Magnetic Reconnection with Hybrid-Kinetic Simulations Open
Magnetic reconnection drives multispecies particle acceleration broadly in space and astrophysics. We perform the first 3D hybrid simulations (fluid electrons, kinetic ions) that contain sufficient scale separation to produce nonthermal he…
View article: Kinetic-scale current sheets in the solar wind at 5 AU
Kinetic-scale current sheets in the solar wind at 5 AU Open
We present statistical analysis of 16,903 current sheets (CS) observed over 641 days aboard Ulysses spacecraft at 5 AU. We show that the magnetic field rotates across CSs through some shear angle, while only weakly varies in magnitude. The…
View article: Assessing the Role of Turbulence-Driven Magnetic Reconnection in the Dissipation of Plasma Turbulence in Earth’s Magnetosheath
Assessing the Role of Turbulence-Driven Magnetic Reconnection in the Dissipation of Plasma Turbulence in Earth’s Magnetosheath Open
Magnetic reconnection has long been thought to play an important role in turbulent plasmas – with the nonlinear dynamics of turbulent systems being well known to self-consistently generate intense current structures and associated ma…
View article: On the evolution of magnetic reconnection in the solar wind
On the evolution of magnetic reconnection in the solar wind Open
Magnetic reconnection is a fundamental process in astrophysical plasma, as it enables the dissipation of energy at kinetic scales as well as large-scale reconfiguration of the magnetic topology. In the solar wind, its quantitative role in …
View article: Investigation of a Magnetic Reconnection Event with Extraordinarily High Particle Energization in Magnetotail Turbulence
Investigation of a Magnetic Reconnection Event with Extraordinarily High Particle Energization in Magnetotail Turbulence Open
Magnetic reconnection and plasma turbulence are ubiquitous and key processes in the Universe. These two processes are suggested to be intrinsically related: magnetic reconnection can develop turbulence, and, in turn, turbulence can influen…
View article: Magnetic Reconnection at Planetary Bodies and Astrospheres
Magnetic Reconnection at Planetary Bodies and Astrospheres Open
Magnetic reconnection is a fundamental mechanism for the transport of mass and energy in planetary magnetospheres and astrospheres. While the process of reconnection is itself ubiquitous across a multitude of systems, the techniques used f…