PSP Bibliography





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Found 6 entries in the Bibliography.


Showing entries from 1 through 6


2021

The near-Sun streamer belt solar wind: turbulence and solar wind acceleration

Chen, C.; Chandran, B.; Woodham, L.; Jones, S.; Perez, J.; Bourouaine, S.; Bowen, T.; Klein, K.; Moncuquet, M.; Kasper, J.; Bale, S.;

Published by: Astronomy and Astrophysics      Published on:

YEAR: 2021     DOI: "10.1051/0004-6361/202039872"

Parker Data Used; parker solar probe; Solar Probe Plus

2020

Two-time energy spectrum of weak magnetohydrodynamic turbulence

In this work a weak-turbulence closure is used to determine the structure of the two-time power spectrum of weak magnetohydrodynamic (MHD) turbulence from the nonlinear equations describing the dynamics. The two-time energy spectrum is a fundamental quantity in turbulence theory from which most statistical properties of a homogeneous turbulent system can be derived. A closely related quantity, obtained via a spatial Fourier transform, is the two-point two-time correlation function describing the space-time correlations arisi ...

Perez, Jean; Azelis, Augustus; Bourouaine, Sofiane;

Published by: PHYSICAL REVIEW RESEARCH      Published on: MAY 19

YEAR: 2020     DOI: 10.1103/PhysRevResearch.2.023189

Parker Data Used

Turbulence Characteristics of Switchback and Nonswitchback Intervals Observed by Parker Solar Probe

We use Parker Solar Probe (PSP) in situ measurements to analyze the characteristics of solar wind turbulence during the first solar encounter covering radial distances between 35.7R and 41.7R. In our analysis we isolate so-called switchback (SB) intervals (folded magnetic field lines) from nonswitchback (NSB) intervals, which mainly follow the Parker spiral field. Using a technique based on conditioned correlation functions, we estimate the power spectra of Elsasser, magnetic, and bulk velocity fields separately in the SB an ...

Bourouaine, Sofiane; Perez, Jean; Klein, Kristopher; Chen, Christopher; Martinovic, Mihailo; Bale, Stuart; Kasper, Justin; Raouafi, Nour;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: DEC

YEAR: 2020     DOI: 10.3847/2041-8213/abbd4a

Parker Data Used

2019

On the Interpretation of Parker Solar Probe Turbulent Signals

In this Letter we propose a practical methodology to interpret future Parker Solar Probe (PSP) turbulent time signals even when Taylor s hypothesis is not valid. By extending Kraichnan s sweeping model used in hydrodynamics we derive the Eulerian spacetime correlation function in magnetohydrodynamic (MHD) turbulence. It is shown that in MHD, the temporal decorrelation of small-scale fluctuations arises from a combination of hydrodynamic sweeping induced by large-scale fluid velocity delta u(0) and by the Alfvenic propagation ...

Bourouaine, Sofiane; Perez, Jean;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: JUL 1

YEAR: 2019     DOI: 10.3847/2041-8213/ab288a

Parker Data Used

2018

On the Limitations of Taylor s Hypothesis in Parker Solar Probe s Measurements near the Alfven Critical Point

In this Letter, we present an analysis of two-point, two-time correlation functions from high-resolution numerical simulations of Reflection-driven Alfven Turbulence near the Alfven critical point r e . The simulations model the turbulence in a prescribed background solar wind model chosen to match observational constraints. This analysis allows us to investigate the temporal decorrelation of solar wind turbulence and the validity of Taylor s approximation near the heliocentric distance r(c), which Parker Solar Probe (PSP) i ...

Bourouaine, Sofiane; Perez, Jean;

Published by: ASTROPHYSICAL JOURNAL LETTERS      Published on: MAY 10

YEAR: 2018     DOI: 10.3847/2041-8213/aabccf

Parker Data Used

2015

A MODIFIED VERSION OF TAYLOR\textquoterightS HYPOTHESIS FOR SOLAR PROBE PLUS OBSERVATIONS

The Solar Probe Plus (SPP) spacecraft will explore the near-Sun environment, reaching heliocentric distances less than 10 R. Near Earth, spacecraft measurements of fluctuating velocities and magnetic fields taken in the time domain are translated into information about the spatial structure of the solar wind via Taylor\textquoterights \textquotedblleftfrozen turbulence\textquotedblright hypothesis. Near the perihelion of SPP, however, the solar-wind speed is comparable to the Alfv\ en speed, and Taylor\text ...

Klein, Kristopher; Perez, Jean; Verscharen, Daniel; Mallet, Alfred; Chandran, Benjamin;

Published by: The Astrophysical Journal      Published on: 03/2015

YEAR: 2015     DOI: 10.1088/2041-8205/801/1/L18

Astrophysics - Solar and Stellar Astrophysics; Parker Data Used; parker solar probe; Physics - Plasma Physics; Physics - Space Physics; plasmas; Solar Probe Plus; Solar wind; Sun: corona; turbulence



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