| 2022 |
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Parker Solar Probe Observations of Solar Wind Energetic Proton Beams Produced by Magnetic Reconnection in the Near-Sun Heliospheric Current Sheet
We report observations of reconnection exhausts in the Heliospheric Current Sheet (HCS) during Parker Solar Probe Encounters 08 and 07, at 16 R$_s$ and 20 R$_s$, respectively. Heliospheric current sheet (HCS) reconnection accelerated protons to almost twice the solar wind speed and increased the proton core energy by a factor of \ensuremath\sim3, due to the Alfv\ en speed being comparable to the solar wind flow speed at these near-Sun distances. Furthermore, protons were energized to super-thermal energies. During E08, energ ...
Phan, T.~D.; Verniero, J.~L.; Larson, D.; Lavraud, B.; Drake, J.~F.; Oieroset, M.; Eastwood, J.~P.; Bale, S.~D.; Livi, R.; Halekas, J.~S.; Whittlesey, P.~L.; Rahmati, A.; Stansby, D.; Pulupa, M.; MacDowall, R.~J.; Szabo, P.~A.; Koval, A.; Desai, M.; Fuselier, S.~A.; Velli, M.; Hesse, M.; Pyakurel, P.~S.; Maheshwari, K.; Kasper, J.~C.; Stevens, J.~M.; Case, A.~W.; Raouafi, N.~E.;
Published by: \grl Published on: may
YEAR: 2022 DOI: 10.1029/2021GL096986
Parker Data Used; magnetic reconnection; Particle acceleration; Solar wind; parker solar probe; heliospheric current sheet
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Flux rope and dynamics of the heliospheric current sheet. Study of the Parker Solar Probe and Solar Orbiter conjunction of June 2020
Context. Solar Orbiter and Parker Solar Probe jointly observed the solar wind for the first time in June 2020, capturing data from very different solar wind streams: calm, Alfv\ enic wind and also highly dynamic large-scale structures. Context. Our aim is to understand the origin and characteristics of the highly dynamic solar wind observed by the two probes, particularly in the vicinity of the heliospheric current sheet (HCS). \ Methods: We analyzed the plasma data obtained by Parker Solar Probe and Solar Orbiter in situ du ...
Réville, V.; Fargette, N.; Rouillard, A.~P.; Lavraud, B.; Velli, M.; Strugarek, A.; Parenti, S.; Brun, A.~S.; Shi, C.; Kouloumvakos, A.; Poirier, N.; Pinto, R.~F.; Louarn, P.; Fedorov, A.; Owen, C.~J.; enot, V.; Horbury, T.~S.; Laker, R.; Brien, H.; Angelini, V.; Fauchon-Jones, E.; Kasper, J.~C.;
Published by: \aap Published on: mar
YEAR: 2022 DOI: 10.1051/0004-6361/202142381
Parker Data Used; Solar wind; magnetohydrodynamics (MHD); magnetic reconnection; methods: numerical; methods: data analysis; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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PSP Observations of a Slow Shock Pair Bounding a Large-Scale Plasmoid/Macro Magnetic Hole
Slow shocks are introduced to be the main dissipation sites in Petschek reconnection model, but they are seldom observed in interplanetary space. We report a slow shock pair bounding a plasmoid/macro magnetic hole observed by Parker Solar Probe. The jump conditions across the shocks are examined and confirmed to satisfy the Rankine-Hugoniot relations. The flow speed in the preshock and postshock regions of both shocks match up with the characteristics of slow shocks. The slow shock pair is suggested to be a part of a curved ...
Zhou, Zilu; Xu, Xiaojun; Zuo, Pingbing; Wang, Yi; Wang, Ludi; Ye, Yudong; Wang, Ming; Chang, Qing; Wang, Xing; Luo, Lei;
Published by: \grl Published on: mar
YEAR: 2022 DOI: 10.1029/2021GL097564
Parker Data Used; slow shocks; magnetic reconnection; Solar wind; magnetic hole
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Scaling of Electron Heating by Magnetization During Reconnection and Applications to Dipolarization Fronts and Super-Hot Solar Flares
Electron ring velocity space distributions have previously been seen in numerical simulations of magnetic reconnection exhausts and have been suggested to be caused by the magnetization of the electron outflow jet by the compressed reconnected magnetic fields
Barbhuiya, Hasan; Cassak, P.~A.; Shay, M.~A.; Roytershteyn, Vadim; Swisdak, M.; Caspi, Amir; Runov, Andrei; Liang, Haoming;
Published by: Journal of Geophysical Research (Space Physics) Published on: aug
YEAR: 2022 DOI: 10.1029/2022JA030610
Parker Data Used; magnetic reconnection; magnetotail; hot solar flares; electron ring distributions; dipolarization fronts; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2021 |
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Switchback-like structures observed by Solar Orbiter
Context. Rapid polarity reversals of the radial heliospheric magnetic field were discovered by Ulysses and they are now frequently observed as a common near-Sun phenomenon by NASA s Parker Solar Probe (PSP). Other solar wind missions, including ESA-NASA Solar Orbiter (SolO), also observe similar phenomena. The nature of these fluctuations is unclear, and the relation between the switchbacks observed near the Sun and similar events observed at 1 AU is unknown. \ Aims: We make a detailed case study of the SolO plasma and m ...
Fedorov, A.; Louarn, P.; Owen, C.~J.; Horbury, T.~S.; Prech, L.; Durovcova, T.; Barthe, A.; Rouillard, A.~P.; Kasper, J.~C.; Bale, S.~D.; Bruno, R.; Brien, H.; Evans, V.; Angelini, V.; Larson, D.; Livi, R.; Lavraud, B.; Andre, N.; Genot, V.; Penou, E.; Mele, G.; Fortunato, V.;
Published by: \aap Published on: dec
YEAR: 2021 DOI: 10.1051/0004-6361/202141246
Parker Data Used; magnetic reconnection; Sun: heliosphere
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Solar wind current sheets and deHoffmann-Teller analysis. First results from Solar Orbiter s DC electric field measurements
Context. Solar Orbiter was launched on 10 February 2020 with the purpose of investigating solar and heliospheric physics using a payload of instruments designed for both remote and in situ studies. Similar to the recently launched Parker Solar Probe, and unlike earlier missions, Solar Orbiter carries instruments designed to measure low-frequency DC electric fields. \ Aims: In this paper, we assess the quality of the low-frequency DC electric field measured by the Radio and Plasma Waves instrument (RPW) on Solar Orbiter. In p ...
Steinvall, K.; Khotyaintsev, Yu.; Cozzani, G.; Vaivads, A.; Yordanova, E.; Eriksson, A.~I.; Edberg, N.~J.~T.; Maksimovic, M.; Bale, S.~D.; Chust, T.; Krasnoselskikh, V.; Kretzschmar, M.; Lorfèvre, E.; Plettemeier, D.; Sou\vcek, J.; Steller, M.; ak, \vS.; Vecchio, A.; Horbury, T.~S.; Brien, H.; Evans, V.; Fedorov, A.; Louarn, P.; enot, V.; e, Andr\; Lavraud, B.; Rouillard, A.~P.; Owen, C.~J.;
Published by: \aap Published on: dec
YEAR: 2021 DOI: 10.1051/0004-6361/202140855
Parker Data Used; Solar wind; plasmas; magnetic reconnection; methods: data analysis; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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Periodicities in an active region correlated with Type III radio bursts observed by Parker Solar Probe
Context. Periodicities have frequently been reported across many wavelengths in the solar corona. Correlated periods of ~5 min, comparable to solar p-modes, are suggestive of coupling between the photosphere and the corona.
Aims: Our study investigates whether there are correlations in the periodic behavior of Type III radio bursts which are indicative of nonthermal electron acceleration processes, and coronal extreme ultraviolet (EUV) emission used to assess heating and cooling in an active region when there are no l ...
Cattell, Cynthia; Glesener, Lindsay; Leiran, Benjamin; Dombeck, John; Goetz, Keith; Oliveros, Juan; Badman, Samuel; Pulupa, Marc; Bale, Stuart;
Published by: Astronomy and Astrophysics Published on: 06/2021
YEAR: 2021 DOI: 10.1051/0004-6361/202039510
Sun: radio radiation; Sun: corona; Sun: X-rays; gamma rays; Sun: oscillations; magnetic reconnection; radiation mechanisms: non-thermal; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used
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Direct evidence for magnetic reconnection at the boundaries of magnetic switchbacks with Parker Solar Probe
Context. The first encounters of Parker Solar Probe (PSP) with the Sun revealed the presence of ubiquitous localised magnetic deflections in the inner heliosphere; these structures, often called switchbacks, are particularly striking in solar wind streams originating from coronal holes.
Aims: We report the direct piece of evidence for magnetic reconnection occurring at the boundaries of three switchbacks crossed by PSP at a distance of 45 to 48 solar radii to the Sun during its first encounter.
Methods: We anal ...
Froment, C.; Krasnoselskikh, V.; de Wit, Dudok; Agapitov, O.; Fargette, N.; Lavraud, B.; Larosa, A.; Kretzschmar, M.; Jagarlamudi, V.; Velli, M.; Malaspina, D.; Whittlesey, P.; Bale, S.; Case, A.; Goetz, K.; Kasper, J.; Korreck, K.; Larson, D.; MacDowall, R.; Mozer, F.; Pulupa, M.; Revillet, C.; Stevens, M.;
Published by: Astronomy and Astrophysics Published on: 06/2021
YEAR: 2021 DOI: 10.1051/0004-6361/202039806
Sun: heliosphere; Solar wind; magnetic fields; magnetic reconnection; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics; Parker Data Used
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Discontinuity analysis of the leading switchback transition regions
Context. Magnetic switchbacks are magnetic structures characterized as intervals of sudden reversal in the radial component of the pristine solar wind s magnetic field. Switchbacks comprise of magnetic spikes that are preceded and succeeded by switchback transition regions within which the radial magnetic field reverses. Determining switchback generation and evolution mechanisms will further our understanding of the global circulation and transportation of the Sun s open magnetic flux.
Aims: The present study juxtapos ...
Akhavan-Tafti, M.; Kasper, J.; Huang, J.; Bale, S.;
Published by: Astronomy and Astrophysics Published on: 06/2021
YEAR: 2021 DOI: 10.1051/0004-6361/202039508
magnetic reconnection; magnetic fields; Solar wind; methods: data analysis; magnetohydrodynamics (MHD); instabilities; Parker Data Used
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| 2020 |
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Spectral signatures of recursive magnetic field reconnection
Tenerani, A.; Velli, M.;
Published by: \mnras Published on: 01/2020
YEAR: 2020 DOI: 10.1093/mnras/stz3310
Parker Data Used; magnetic reconnection; MHD; plasmas; turbulence; Physics - Space Physics; Astrophysics - Solar and Stellar Astrophysics
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| 2019 |
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Dynamic Evolution of Current Sheets, Ideal Tearing, Plasmoid Formation and Generalized Fractal Reconnection Scaling Relations
Singh, K.~A.~P.; Pucci, Fulvia; Tenerani, Anna; Shibata, Kazunari; Hillier, Andrew; Velli, Marco;
Published by: \apj Published on: 08/2019
YEAR: 2019 DOI: 10.3847/1538-4357/ab2b99
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; plasmas; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2018 |
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Self-consistent Energetic Particle Acceleration by Contracting and Reconnecting Small-scale Flux Ropes: The Governing Equations
le Roux, J.~A.; Zank, G.~P.; Khabarova, O.~V.;
Published by: \apj Published on: 09/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aad8b3
Parker Data Used; acceleration of particles; magnetic reconnection; Solar wind
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Marginal Stability of Sweet-Parker Type Current Sheets at Low Lundquist Numbers
Shi, Chen; Velli, Marco; Tenerani, Anna;
Published by: \apj Published on: 06/2018
YEAR: 2018 DOI: 10.3847/1538-4357/aabd83
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Physics - Plasma Physics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2017 |
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Fast Magnetic Reconnection: \textquotedblleftIdeal\textquotedblright Tearing and the Hall Effect
Pucci, Fulvia; Velli, Marco; Tenerani, Anna;
Published by: \apj Published on: 08/2017
YEAR: 2017 DOI: 10.3847/1538-4357/aa7b82
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; plasmas; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics
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Reconnection-Driven Coronal-Hole Jets with Gravity and Solar Wind
Karpen, J.~T.; DeVore, C.~R.; Antiochos, S.~K.; Pariat, E.;
Published by: \apj Published on: 01/2017
YEAR: 2017 DOI: 10.3847/1538-4357/834/1/62
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; stars: jets; Sun: activity; Sun: corona; Astrophysics - Solar and Stellar Astrophysics
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| 2016 |
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Inward Motions in the Outer Solar Corona between 7 and 12 R $_☉$: Evidence for Waves or Magnetic Reconnection Jets?
Tenerani, Anna; Velli, Marco; DeForest, Craig;
Published by: \apjl Published on: 07/2016
YEAR: 2016 DOI: 10.3847/2041-8205/825/1/L3
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: corona; waves
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| 2015 |
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Magnetic Reconnection: Recursive Current Sheet Collapse Triggered by \textquotedblleftIdeal\textquotedblright Tearing
Tenerani, Anna; Velli, Marco; Rappazzo, Antonio; Pucci, Fulvia;
Published by: \apjl Published on: 11/2015
YEAR: 2015 DOI: 10.1088/2041-8205/813/2/L32
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Sun: corona; Physics - Plasma Physics
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Resistive Magnetohydrodynamics Simulations of the Ideal Tearing Mode
Landi, S.; Del Zanna, L.; Papini, E.; Pucci, F.; Velli, M.;
Published by: \apj Published on: 06/2015
YEAR: 2015 DOI: 10.1088/0004-637X/806/1/131
Parker Data Used; magnetohydrodynamics: MHD; magnetic reconnection; methods: numerical; plasmas; Sun: magnetic fields; Astrophysics - Solar and Stellar Astrophysics
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Statistical study of magnetic cloud erosion by magnetic reconnection
recent studies suggest that magnetic reconnection is able to erode substantial amounts of the outer magnetic flux of interplanetary magnetic clouds (MCs) as they propagate in the heliosphere. We quantify and provide a broader context to this process, starting from 263 tabulated interplanetary coronal mass ejections, including MCs, observed over a time period covering 17 years and at a distance of 1 AU from the Sun with Wind (1995-2008) and the two STEREO (2009-2012) spacecraft. Based on several quality factors, including ...
Ruffenach, A.; Lavraud, B.; Farrugia, C.; emoulin, P.; Dasso, S.; Owens, M.; Sauvaud, J.-A.; Rouillard, A.; Lynnyk, A.; Foullon, C.; Savani, N.; Luhmann, J.; Galvin, A.;
Published by: Journal of Geophysical Research: Space Physics Published on: 01/2015
YEAR: 2015 DOI: 10.1002/2014JA020628
coronal mass ejection; magnetic cloud; magnetic flux rope; magnetic reconnection; parker solar probe; Solar Probe Plus; Solar wind
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| 2014 |
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Dissipation and Reconnection in Boundary-driven Reduced Magnetohydrodynamics
Wan, Minping; Rappazzo, Antonio; Matthaeus, William; Servidio, Sergio; Oughton, Sean;
Published by: \apj Published on: 12/2014
YEAR: 2014 DOI: 10.1088/0004-637X/797/1/63
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Sun: corona
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Magnetic Reconnection and Intermittent Turbulence in the Solar Wind
Osman, K.~T.; Matthaeus, W.~H.; Gosling, J.~T.; Greco, A.; Servidio, S.; Hnat, B.; Chapman, S.~C.; Phan, T.~D.;
Published by: \prl Published on: 05/2014
YEAR: 2014 DOI: 10.1103/PhysRevLett.112.215002
Parker Data Used; 94.05.Lk; 52.35.Vd; 96.50.Bh; 96.50.Ci; turbulence; magnetic reconnection; interplanetary magnetic fields; Solar wind plasma; sources of solar wind; Physics - Space Physics; Physics - Data Analysis; Statistics and Probability; Physics - Plasma Physics
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Complexity and Diffusion of Magnetic Flux Surfaces in Anisotropic Turbulence
Servidio, S.; Matthaeus, W.~H.; Wan, M.; Ruffolo, D.; Rappazzo, A.~F.; Oughton, S.;
Published by: \apj Published on: 04/2014
YEAR: 2014 DOI: 10.1088/0004-637X/785/1/56
Parker Data Used; ISM: magnetic fields; magnetic fields; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: magnetic fields
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Test-particle Acceleration in a Hierarchical Three-dimensional Turbulence Model
Dalena, S.; Rappazzo, A.~F.; Dmitruk, P.; Greco, A.; Matthaeus, W.~H.;
Published by: \apj Published on: 03/2014
YEAR: 2014 DOI: 10.1088/0004-637X/783/2/143
Parker Data Used; acceleration of particles; magnetic reconnection; Sun: corona; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2013 |
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Generation of X-points and secondary islands in 2D magnetohydrodynamic turbulence
Wan, Minping; Matthaeus, William; Servidio, Sergio; Oughton, Sean;
Published by: Physics of Plasmas Published on: 04/2013
YEAR: 2013 DOI: 10.1063/1.4802985
Parker Data Used; magnetic reconnection; plasma magnetohydrodynamics; plasma simulation; plasma turbulence; 52.30.Cv; 52.35.Ra; 52.35.Vd; 52.65.-y; Magnetohydrodynamics; plasma turbulence; magnetic reconnection; plasma simulation
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Generation of X-points and secondary islands in 2D magnetohydrodynamic turbulence
Wan, Minping; Matthaeus, William; Servidio, Sergio; Oughton, Sean;
Published by: Physics of Plasmas Published on: 04/2013
YEAR: 2013 DOI: 10.1063/1.4802985
Parker Data Used; magnetic reconnection; plasma magnetohydrodynamics; plasma simulation; plasma turbulence; 52.30.Cv; 52.35.Ra; 52.35.Vd; 52.65.-y; Magnetohydrodynamics; plasma turbulence; magnetic reconnection; plasma simulation
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| 2012 |
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Interchange Reconnection in a Turbulent Corona
Rappazzo, A.~F.; Matthaeus, W.~H.; Ruffolo, D.; Servidio, S.; Velli, M.;
Published by: \apjl Published on: 10/2012
YEAR: 2012 DOI: 10.1088/2041-8205/758/1/L14
Parker Data Used; magnetic reconnection; magnetohydrodynamics: MHD; Solar wind; Sun: corona; Sun: magnetic topology; turbulence; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics
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| 2010 |
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Scaling the energy conversion rate from magnetic field reconnection to different bodies
Magnetic field reconnection is often invoked to explain electromagnetic energy conversion in planetary magnetospheres, stellar coronae, and other astrophysical objects. Because of the huge dynamic range of magnetic fields in these bodies, it is important to understand energy conversion as a function of magnetic field strength and related parameters. It is conjectured theoretically and shown experimentally that the energy conversion rate per unit area in reconnection scales as the cube of an appropriately weighted magnetic ...
Mozer, F.; Hull, A.;
Published by: Physics of Plasmas Published on: 10/2010
YEAR: 2010 DOI: 10.1063/1.3504224
95.30.Qd; astrophysical plasma; magnetic reconnection; parker solar probe; planetary magnetism; plasma magnetohydrodynamics; solar flares; solar magnetism; Solar Probe Plus
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