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Found 10 entries in the Bibliography.
Showing entries from 1 through 10
| 2022 |
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Taylor Microscale and Effective Reynolds Number near the Sun from PSP The Taylor microscale is a fundamental length scale in turbulent fluids, representing the end of fluid properties and onset of dissipative processes. The Taylor microscale can also be used to evaluate the Reynolds number in classical turbulence theory. Although the solar wind is weakly collisional, it approximately behaves as a magnetohydrodynamic (MHD) fluid at scales larger than the kinetic scale. As a result, classical fluid turbulence theory and formalisms are often used to study turbulence in the MHD range. Therefore, a ... Phillips, C.; Bandyopadhyay, R.; McComas, D.~J.; Published by: \apj Published on: jul YEAR: 2022 DOI: 10.3847/1538-4357/ac713f Parker Data Used; Solar wind; interplanetary turbulence; Magnetohydrodynamics; Space plasmas; 1534; 830; 1964; 1544; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
| 2021 |
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Context. In 2020 May-June, six solar energetic ion events were observed by the Parker Solar Probe/IS⊙IS instrument suite at ≈0.35 AU from the Sun. From standard velocity-dispersion analysis, the apparent ion path length is ≈0.625 AU at the onset of each event. Chhiber, R.; Matthaeus, W.; Cohen, C.; Ruffolo, D.; Sonsrettee, W.; Tooprakai, P.; Seripienlert, A.; Chuychai, P.; Usmanov, A.; Goldstein, M.; McComas, D.; Leske, R.; Christian, E.; Mewaldt, R.; Labrador, A.; al., et; Published by: Astronomy and Astrophysics Published on: 06/2021 YEAR: 2021 DOI: "10.1051/0004-6361/202039816" |
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The Parker Solar Probe (PSP) aims to explore the nascent solar wind close to the Sun. Meanwhile, PSP is also expected to encounter small objects like comets and asteroids. In this work, we survey the ephemerides to find the chance of a recent encounter and then model the interaction between released dusty plasmas and solar wind plasmas. On 2019 September 2, a comet-like object, the 322P/Solar and Heliosphere Observatory, just passed its perihelion flying to a heliocentric distance of 0.12 au and swept by PSP at a relative di ... He, Jiansen; Cui, Bo; Yang, Liping; Hou, Chuanpeng; Zhang, Lei; Ip, Wing-Huen; Jia, Ying-Dong; Dong, Chuanfei; Duan, Die; Zong, Qiugang; Bale, Stuart; Pulupa, Marc; Bonnell, John; de Wit, Thierry; Goetz, Keith; Harvey, Peter; MacDowall, Robert; Malaspina, David; Published by: The Astrophysical Journal Published on: 03/2021 YEAR: 2021 DOI: 10.3847/1538-4357/abdf4a Parker Data Used; Solar wind; Comet tails; Interplanetary dust; Asteroids; 1534; 274; 821; 72; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Solar and Stellar Astrophysics; Physics - Space Physics |
| 2020 |
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Low-cost precursor of an interstellar mission Heller, Ren\; e, Guillem; Hippke, Michael; Kervella, Pierre; Published by: \aap Published on: 09/2020 YEAR: 2020 DOI: 10.1051/0004-6361/202038687 acceleration of particles; methods: observational; site testing; solar neighborhood; space vehicles; Astrophysics - Instrumentation and Methods for Astrophysics; Physics - Space Physics |
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Objectively Determining States of the Solar Wind Using Machine Learning Conclusively determining the states of the solar wind will aid in tracing the origins of those states to the Sun, and in the process help to find the wind\textquoterights origin and acceleration mechanism(s). Prior studies have characterized the various states of the wind, making lists that are only partially based on objective criteria; different approaches obtain substantially different results. To uncover the unbiased states of the solar wind, we use "k-means clustering"\textemdashan unsupervised machine learning metho ... Roberts, Aaron; Karimabadi, Homa; Sipes, Tamara; Ko, Yuan-Kuen; Lepri, Susan; Published by: The Astrophysical Journal Published on: 02/2020 YEAR: 2020 DOI: 10.3847/1538-4357/ab5a7a |
| 2019 |
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The NASA Parker Solar Probe and the ESA Solar Orbiter will explore the source region of the solar wind within 20 solar radii. Their unprecedented in-situ measurements are also expected to shed light on the nature of the F-corona and the existence of a halo of nanodust. Such a dust complex might play an important role in the generation of high-speed nanodust grains and the inner-source pickup ions. A brief summary of previous works on this topic is given here to be followed by a sketch on a plan to integrate MHD simulation of ... Ip, Wing-Huen; Lai, Ian-Lin; Shen, Fang; Published by: Published on: YEAR: 2019 DOI: 10.1088/1742-6596/1332/1/012007 |
| 2016 |
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Tooprakai, P.; Seripienlert, A.; Ruffolo, D.; Chuychai, P.; Matthaeus, W.~H.; Published by: \apj Published on: 11/2016 YEAR: 2016 DOI: 10.3847/0004-637X/831/2/195 Parker Data Used; magnetic fields; Solar wind; Sun: particle emission; turbulence |
| 2013 |
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Squeezing of Particle Distributions by Expanding Magnetic Turbulence and Space Weather Variability Ruffolo, D.; Seripienlert, A.; Tooprakai, P.; Chuychai, P.; Matthaeus, W.~H.; Published by: \apj Published on: 12/2013 YEAR: 2013 DOI: 10.1088/0004-637X/779/1/74 Parker Data Used; galaxies: jets; ISM: jets and outflows; magnetic fields; solar-terrestrial relations; Solar wind; turbulence |
| 2012 |
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A 2.5D numerical plasma model of the interaction of the solar wind (SW) with the Solar Probe Plus spacecraft (SPPSC) is presented. These results should be interpreted as a basic plasma model derived from the SW interaction with the spacecraft (SC), which could have consequences for both plasma wave and electron plasma measurements on board the SC in the inner heliosphere. Compression waves and electric field jumps with amplitudes of about 1.5 V/m and (12-18) V/m were also observed. A strong polarization electric field was ... Lipatov, Alexander; Sittler, Edward; Hartle, Richard; Cooper, John; Published by: Planetary and Space Science Published on: 03/2012 YEAR: 2012 DOI: 10.1016/j.pss.2011.12.008 Alfv\ en waves; Induced magnetospheres; Magnetic barrier; Parker Data Used; parker solar probe; Solar Probe Plus; Solar wind; Spacecraft; Whistlers |
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Injection and Acceleration of Charged Nano-Dust Particles from Sungrazing Comets It is proposed that the high-speed nanodust detected by the plasma wave instrument on the STEREO spacecraft could have an origin from the sungrazing comets. Trajectory calculations are performed using a simple analytical coronal magnetic field model to explore the dynamical nature of such charged nanodust in the vicinity of the solar corona. The relevance of this very near-solar source mechanism of nanodust and pickup ions to the Solar Probe Plus mission is also discussed. Published by: Published on: YEAR: 2012 DOI: 10.1063/1.4723586 |
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