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Title: Laboratory Study of Magnetic Reconnection in Lunar-relevant Mini-magnetospheres

Journal Article · · The Astrophysical Journal

Abstract Mini-magnetospheres are small ion-scale structures that are well suited to studying kinetic-scale physics of collisionless space plasmas. Such ion-scale magnetospheres can be found on local regions of the Moon, associated with the lunar crustal magnetic field. In this paper, we report on the laboratory experimental study of magnetic reconnection in laser-driven, lunar-like ion-scale magnetospheres on the Large Plasma Device at the University of California, Los Angeles. In the experiment, a high-repetition rate (1 Hz), nanosecond laser is used to drive a fast-moving, collisionless plasma that expands into the field generated by a pulsed magnetic dipole embedded into a background plasma and magnetic field. The high-repetition rate enables the acquisition of time-resolved volumetric data of the magnetic and electric fields to characterize magnetic reconnection and calculate the reconnection rate. We notably observe the formation of Hall fields associated with reconnection. Particle-in-cell simulations reproducing the experimental results were performed to study the microphysics of the interaction. By analyzing the generalized Ohm’s law terms, we find that the electron-only reconnection is driven by kinetic effects through the electron pressure anisotropy. These results are compared to recent satellite measurements that found evidence of magnetic reconnection near the lunar surface.

Sponsoring Organization:
USDOE
OSTI ID:
2395987
Journal Information:
The Astrophysical Journal, Journal Name: The Astrophysical Journal Journal Issue: 2 Vol. 969; ISSN 0004-637X
Publisher:
American Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (61)

First observation of a mini-magnetosphere above a lunar magnetic anomaly using energetic neutral atoms: LUNAR MINI-MAGNETOSPHERE journal March 2010
Transition from ion-coupled to electron-only reconnection: Basic physics and implications for plasma turbulence journal August 2019
Magnetic reconnection driven by electron dynamics journal November 2018
Electron-scale measurements of magnetic reconnection in space journal May 2016
Hybrid simulations of solar wind interaction with magnetized asteroids: General characteristics: SOLAR WIND INTERACTION WITH MAGNETIZED ASTEROIDS journal December 2002
The interaction of a flowing plasma with a dipole magnetic field: measurements and modelling of a diamagnetic cavity relevant to spacecraft protection journal November 2008
Low energy neutral atoms imaging of the Moon journal February 2006
Multipoint Measurements of the Electron Jet of Symmetric Magnetic Reconnection with a Moderate Guide Field journal June 2017
Exploiting multi-scale parallelism for large scale numerical modelling of laser wakefield accelerators journal November 2013
A resistively heated CeB 6 emissive probe journal May 2015
Does Magnetic Reconnection Occur in the Near Lunar Surface Environment? journal August 2023
Phase diagram for magnetic reconnection in heliophysical, astrophysical, and laboratory plasmas journal November 2011
Experimental Verification of the Hall Effect during Magnetic Reconnection in a Laboratory Plasma journal July 2005
On the value of the reconnection rate journal November 2016
Electron scale structures of thin current sheets in magnetic reconnection journal January 2012
A review of the 0.1 reconnection rate problem journal September 2017
Design, construction, and calibration of a three-axis, high-frequency magnetic probe (B-dot probe) as a diagnostic for exploding plasmas journal November 2009
Structure of the dissipation region during collisionless magnetic reconnection journal May 1998
Fast gated imaging of the collisionless interaction of a laser-produced and magnetized ambient plasma journal March 2017
Mini-magnetosphere: Laboratory experiment, physical model and Hall MHD simulation journal August 2013
Laser-driven, ion-scale magnetospheres in laboratory plasmas. II. Particle-in-cell simulations journal March 2022
Birth of a comet magnetosphere: A spring of water ions journal January 2015
The Diffusion Region in Collisionless Magnetic Reconnection journal February 2011
Spatial dimensions of the electron diffusion region in anti-parallel magnetic reconnection journal January 2016
An exploration of the effectiveness of artificial mini-magnetospheres as a potential solar storm shelter for long term human space missions journal December 2014
Two-scale structure of the current layer controlled by meandering motion during steady-state collisionless driven reconnection journal July 2004
Characterization of laser-produced carbon plasmas relevant to laboratory astrophysics journal July 2016
Strong reconnection electric fields in shock-driven turbulence journal April 2022
The upgraded Large Plasma Device, a machine for studying frontier basic plasma physics journal February 2016
Electron‐Only Reconnection as a Transition Phase From Quiet Magnetotail Current Sheets to Traditional Magnetotail Reconnection journal March 2022
Observations of a Mini‐Magnetosphere Above the Martian Crustal Magnetic Fields journal November 2023
A platform for high-repetition-rate laser experiments on the Large Plasma Device journal January 2018
Evidence of Diffusion Regions at a Subsolar Magnetopause Crossing journal June 2002
Magnetic reconnection journal March 2010
Density cavity observed over a strong lunar crustal magnetic anomaly in the solar wind: A mini-magnetosphere? journal May 2008
The diffusion region in collisionless magnetic reconnection journal May 1999
Reconnection Rate and Transition from Ion-coupled to Electron-only Reconnection journal November 2023
Kinetic Structure of the Electron Diffusion Region in Antiparallel Magnetic Reconnection journal February 2011
Strong influence of lunar crustal fields on the solar wind flow journal February 2011
Laboratory Verification of Electron‐Scale Reconnection Regions Modulated by a Three‐Dimensional Instability journal June 2021
Electron magnetic reconnection without ion coupling in Earth’s turbulent magnetosheath journal May 2018
Direct observations of pure electron outflow in magnetic reconnection journal June 2022
Strong collisionless coupling between an unmagnetized driver plasma and a magnetized background plasma journal May 2023
The two-fluid dynamics and energetics of the asymmetric magnetic reconnection in laboratory and space plasmas journal December 2018
Physical origin of the quadrupole out-of-plane magnetic field in Hall-magnetohydrodynamic reconnection journal June 2006
Formation of collisionless shocks in magnetized plasma interaction with kinetic-scale obstacles journal February 2017
On the electron diffusion region in planar, asymmetric, systems: diffusion region in asymmetric systems journal December 2014
Laboratory study of collisionless coupling between explosive debris plasma and magnetized ambient plasma journal August 2017
Momentum transfer of solar wind plasma in a kinetic scale magnetosphere journal March 2012
Laser-driven, ion-scale magnetospheres in laboratory plasmas. I. Experimental platform and first results journal April 2022
Suppression of Hall-Term Effects by Gyroviscous Cancellation in Steady Collisionless Magnetic Reconnection journal July 2005
Experimental study of a mini-magnetosphere journal January 2014
Hybrid simulations of mini-magnetospheres in the laboratory journal June 2008
Minimagnetospheres above the Lunar Surface and the Formation of Lunar Swirls journal August 2012
Lunar Surface Magnetic Fields and Their Interaction with the Solar Wind: Results from Lunar Prospector journal September 1998
3d pic Simulations of Collisionless Shocks at Lunar Magnetic Anomalies and Their role in Forming Lunar Swirls journal October 2016
Investigating the Moon's Interaction With the Terrestrial Magnetotail Lobe Plasma journal May 2021
Fluid and kinetic structure of magnetic merging in the Swarthmore Spheromak Experiment journal January 2005
Two fluid effects on three-dimensional reconnection in the Swarthmore Spheromak Experiment with comparisons to space data journal May 2006
Collisionless momentum transfer in space and astrophysical explosions journal February 2017
Steady-State Properties of Driven Magnetic Reconnection in 2D Electron Magnetohydrodynamics journal December 2007