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Found 9 entries in the Bibliography.
Showing entries from 1 through 9
Magnetic Switchback Occurrence Rates in the Inner Heliosphere: Parker Solar Probe and 1 au
The subject of switchbacks, defined either as large angular deflections or polarity reversals of the magnetic field, has generated substantial interest in the space physics community since the launch of the Parker Solar Probe (PSP) in 2018. Previous studies have characterized switchbacks in several different ways and have been restricted to data available from the first few orbits. Here, we analyze the frequency of occurrence of switchbacks per unit distance for the first full eight orbits of PSP. In this work, events that r ...
Pecora, Francesco; Matthaeus, William; Primavera, Leonardo; Greco, Antonella; Chhiber, Rohit; Bandyopadhyay, Riddhi; Servidio, Sergio;
Published by: \apjl Published on: apr
YEAR: 2022   DOI: 10.3847/2041-8213/ac62d4
Parker Data Used; interplanetary magnetic fields; Interplanetary medium; interplanetary turbulence; 824; 825; 830; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics
Parker solar probe observations of helical structures as boundaries for energetic particles
Energetic particle transport in the interplanetary medium is known to be affected by magnetic structures. It has been demonstrated for solar energetic particles in near-Earth orbit studies, and also for the more energetic cosmic rays. In this paper, we show observational evidence that intensity variations of solar energetic particles can be correlated with the occurrence of helical magnetic flux tubes and their boundaries. The analysis is carried out using data from Parker Solar Probe orbit 5, in the period 2020 May 24 to Ju ...
Pecora, F.; Servidio, S.; Greco, A.; Matthaeus, W.~H.; McComas, D.~J.; Giacalone, J.; Joyce, C.~J.; Getachew, T.; Cohen, C.~M.~S.; Leske, R.~A.; Wiedenbeck, M.~E.; McNutt, R.~L.; Hill, M.~E.; Mitchell, D.~G.; Christian, E.~R.; Roelof, E.~C.; Schwadron, N.~A.; Bale, S.~D.;
Published by: \mnras Published on: sep
YEAR: 2021   DOI: 10.1093/mnras/stab2659
magnetic fields; plasmas; Sun: magnetic fields; Sun: solar wind; Sun: particle emission; Astrophysics - Solar and Stellar Astrophysics; Physics - Plasma Physics; Physics - Space Physics; Parker Data Used
Identification of coherent structures in space plasmas: The magnetic helicity-PVI method
Context. Plasma turbulence can be viewed as a magnetic landscape populated by large- and small-scale coherent structures. In this complex network, large helical magnetic tubes might be separated by small-scale magnetic reconnection events (current sheets). However, the identification of these magnetic structures in a continuous stream of data has always been a challenging task. \ Aims: Here, we present a method that is able to characterize both the large- and small-scale structures of the turbulent solar wind, based on the c ...
Pecora, F.; Servidio, S.; Greco, A.; Matthaeus, W.;
Published by: Astronomy and Astrophysics Published on: jun
YEAR: 2020   DOI: "10.1051/0004-6361/202039639"
Single-spacecraft Identification of Flux Tubes and Current Sheets in the Solar Wind
A novel technique is presented for describing and visualizing the local topology of the magnetic field using single-spacecraft data in the solar wind. The approach merges two established techniques: the Grad-Shafranov (GS) reconstruction method, which provides a plausible regional two-dimensional magnetic field surrounding the spacecraft trajectory, and the Partial Variance of Increments (PVI) technique that identifies coherent magnetic structures, such as current sheets. When applied to one month of Wind magnetic field d ...
Pecora, Francesco; Greco, Antonella; Hu, Qiang; Servidio, Sergio; Chasapis, Alexandros; Matthaeus, William;
Published by: The Astrophysical Journal Published on: 08/2019
YEAR: 2019   DOI: 10.3847/2041-8213/ab32d9
interplanetary turbulence; magnetic fields; parker solar probe; Solar Probe Plus; Solar wind
Velocity-space cascade in magnetized plasmas: Numerical simulations
Pezzi, O.; Servidio, S.; Perrone, D.; Valentini, F.; Sorriso-Valvo, L.; Greco, A.; Matthaeus, W.~H.; Veltri, P.;
Published by: Physics of Plasmas Published on: 06/2018
YEAR: 2018   DOI: 10.1063/1.5027685
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
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
Magnetic moment nonconservation in magnetohydrodynamic turbulence models
Dalena, S.; Greco, A.; Rappazzo, A.~F.; Mace, R.~L.; Matthaeus, W.~H.;
Published by: \pre Published on: 07/2012
YEAR: 2012   DOI: 10.1103/PhysRevE.86.016402
Parker Data Used; 94.05.Pt; 95.30.Qd; 96.50.Ci; Wave/wave wave/particle interactions; Magnetohydrodynamics and plasmas; Solar wind plasma; sources of solar wind; Physics - Space Physics; Physics - Plasma Physics
Statistical association of discontinuities and reconnection in magnetohydrodynamic turbulence
Servidio, S.; Greco, A.; Matthaeus, W.~H.; Osman, K.~T.; Dmitruk, P.;
Published by: Journal of Geophysical Research (Space Physics) Published on: 09/2011
YEAR: 2011   DOI: 10.1029/2011JA016569
Parker Data Used; Interplanetary Physics: Discontinuities (7811); Interplanetary Physics: Solar wind plasma; Nonlinear Geophysics: Turbulence (3379; 4568; 7863); Solar Physics; Astrophysics; and Astronomy: Magnetic reconnection (2723; 7835)