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Solar wind measurements carried out by NASA's Wind spacecraft before, during and after the passing of an interplanetary coronal mass ejection (ICME) detected on 12-14 September 2014 have been used in order to examine several properties of…

空间物理 · 物理学 2023-04-19 Roque Márquez Rodríguez , Luca Sorriso-Valvo , Emiliya Yordanova

We investigate the turbulent properties of 12 interplanetary coronal mass ejections (ICMEs) observed by Solar Orbiter between 0.29 and 1.0 AU. We analyze fluctuation power, spectral indices, break scales, and correlations between magnetic…

太阳与恒星天体物理 · 物理学 2026-01-13 Jyoti Sheoran , Supratik Banerjee , Vaibhav Pant , Dipankar Banerjee , M. Saleem Khan

We have performed an extensive statistical investigation of how interplanetary fast forward shocks affect certain turbulence parameters, namely, the cross-helicity, $\sigma_c$, residual energy, $\sigma_r$, and magnetic helicity, $\sigma_m$.…

太阳与恒星天体物理 · 物理学 2025-05-09 Emilia Kilpua , Simon Good , Juska Soljento , Domenico Trotta , Tia Bäcker , Julia Ruohotie , Jens Pomoell , Chaitanya Sishtla , Rami Vainio

Interplanetary coronal mass ejections (ICMEs) contain magnetic field and velocity fluctuations across a wide range of scales. These fluctuations may be interpreted as Alfv\'enic wave packets propagating parallel or anti-parallel to the…

空间物理 · 物理学 2022-05-23 S. W. Good , L. M. Hatakka , M. Ala-Lahti , J. E. Soljento , A. Osmane , E. K. J. Kilpua

We investigate the kinetic properties of a typical fast-mode shock inside an interplanetary coronal mass ejection (ICME) observed on 1998 August 6 at 1 AU, including particle distributions and wave analysis with the in situ measurements…

太阳与恒星天体物理 · 物理学 2018-05-30 Mingzhe Liu , Ying D. Liu , Zhongwei Yang , L. B. Wilson , Huidong Hu

Coronal mass ejections (CMEs) are large-scale expulsions of plasma and magnetic flux from the Sun's corona into the heliosphere. In interplanetary space they are referred to as interplanetary CMEs (ICMEs), often characterised by a shock, a…

太阳与恒星天体物理 · 物理学 2026-04-03 Akanksha Dagore , Giuseppe Prete , Vincenzo Capparelli , Vincenzo Carbone , Fabio Lepreti

On 2022 March 10, a coronal mass ejection (CME) erupted from the Sun, resulting in Solar Orbiter observations at 0.45 au of both dispersive solar energetic particles arriving prior to the interplanetary CME (ICME) and locally accelerated…

The Parker Solar Probe (PSP) and Solar Orbiter (SolO) missions opened a new observational window in the inner heliosphere, which is finally accessible to direct measurements. On September 05, 2022, a coronal mass ejection (CME)-driven…

Interplanetary (IP) shock waves are greatly interesting, as they represent significant phenomena in near-Earth space and are direct drivers of geomagnetic and radiation storms. Moreover, various data and parameters are being explored for…

太阳与恒星天体物理 · 物理学 2025-06-26 Oleksandr Yakovlev , Oleksiy Dudnik , Anna Wawrzaszek

Turbulence properties are examined before, during and after a coronal mass ejection (CME) detected by the6Wind spacecraft on July 2012. The power-law scaling of the structure functions, providing information on the7power spectral density…

太阳与恒星天体物理 · 物理学 2021-10-07 Luca Sorriso-Valvo , Emiliya Yordanova , Andrew P. Dimmock , Daniele Telloni

Intervals of enhanced turbulent fluctuations are typically less frequent within the magnetic cloud region of an interplanetary coronal mass ejection (ICME). We investigate two such intervals inside an ICME observed by the \textit{Wind}…

Interplanetary coronal mass ejections (ICMEs) have low proton beta across a broad range of heliocentric distances and a magnetic flux rope structure at large scales, making them a unique environment for studying solar wind fluctuations.…

太阳与恒星天体物理 · 物理学 2023-10-17 S. W. Good , O. K. Rantala , A. -S. M. Jylhä , C. H. K. Chen , C. Möstl , E. K. J. Kilpua

Propagation of interplanetary (IP) shocks, particularly those driven by coronal mass ejections (CMEs), is still an outstanding question in heliophysics and space weather forecasting. Here we address effects of the ambient solar wind on the…

太阳与恒星天体物理 · 物理学 2024-11-04 Chin-Chun Wu , Kan Liou , Brian E. Wood , Lynn Hutting

The Parker Solar Probe (PSP) observed an interplanetary coronal mass ejection (ICME) event during its first orbit around the sun, among many other events. This event is analyzed by applying a wavelet analysis technique to obtain the reduced…

Electromotive force is an essential quantity in dynamo theory. During a coronal mass ejection (CME), magnetic helicity gets decoupled from the Sun and advected into the heliosphere with the solar wind. Eventually, a heliospheric magnetic…

太阳与恒星天体物理 · 物理学 2018-05-17 Philippe-A. Bourdin , Bernhard Hofer , Yasuhito Narita

The recently released spacecraft potential measured by the RPW instrument on-board Solar Orbiter has been used to estimate the solar wind electron density in the inner heliosphere. Solar-wind electron density measured during June 2020 has…

The dynamic evolution of coronal mass ejection (CME) in interplanetary space generates highly turbulent, compressed, and heated shock-sheath. This region furnishes a unique environment to study the turbulent fluctuations at the small scales…

太阳与恒星天体物理 · 物理学 2022-09-13 Anil Raghav , Zubair Shaikh , Omkar Dhamane , Kalpesh Ghag , Prathmesh Tari , Utsav Panchal

Solar wind turbulence is a dynamical phenomenon that evolves with heliocentric distance. Orbiting Mars since September 2014, Mars Atmosphere and Volatile EvolutioN (MAVEN) offers a unique opportunity to explore some of its main properties…

太阳与恒星天体物理 · 物理学 2024-06-27 Norberto Romanelli , Nahuel Andres , Gina DiBraccio , Jaye Verniero , Jacob Gruesbeck , Adam Szabo , Jared Espley , Jasper Halekas

The sheaths of compressed solar wind that precede interplanetary coronal mass ejections (ICMEs) commonly display large-amplitude magnetic field fluctuations. As ICMEs propagate radially from the Sun, the properties of these fluctuations may…

空间物理 · 物理学 2022-05-23 S. W. Good , M. Ala-Lahti , E. Palmerio , E. K. J. Kilpua , A. Osmane

We study interplanetary coronal mass ejections (ICMEs) measured by probes at different heliocentric distances (0.3-1AU) to investigate the propagation of ICMEs in the inner heliosphere and determine how the generic features of ICMEs change…

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