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Related papers: Expansion of magnetic clouds in the outer heliosph…

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Observations of magnetic clouds (MCs) are consistent with the presence of flux ropes detected in the solar wind (SW) a few days after their expulsion from the Sun as coronal mass ejections (CMEs). Both the \textit{in situ} observations of…

Space Physics · Physics 2012-06-07 Adriana Maria Gulisano , Pascal Demoulin , Sergio Dasso , Maria Emilia Ruiz , E. Marsh

Interplanetary evolution of eleven magnetic clouds (MCs) recorded by at least two radially aligned spacecraft is studied. The in situ magnetic field measurements are fitted to a cylindrically symmetric Gold-Hoyle force-free uniform-twist…

Magnetic clouds (MCs) are the interplanetary counterparts of coronal mass ejections (CMEs), and usually modeled by a flux rope. By assuming the quasi-steady evolution and self-similar expansion, we introduce three types of global motion…

Solar and Stellar Astrophysics · Physics 2015-03-03 Yuming Wang , Zhenjun Zhou , Chenglong Shen , Rui Liu , S. Wang

Coronal mass ejections (CMEs) represent one type of the major eruption from the Sun. Their interplanetary counterparts, the interplanetary CMEs (ICMEs), are the direct manifestations of these structures when they propagate into the…

Solar and Stellar Astrophysics · Physics 2021-07-06 Qiang Hu , Wen He , Lingling Zhao , Edward Lu

Magnetic Clouds (MCs) are a particular subset of Interplanetary Coronal Mass Ejections (ICMEs), forming large scale magnetic flux ropes. In this work we analyze the evolution of a particular MC (observed on March 1998) using {\it in situ}…

Solar and Stellar Astrophysics · Physics 2015-05-30 M. S. Nakwacki , S. Dasso , P. Démoulin , C. H. Mandrini , A. M. Gulisano

Magnetic clouds (MCs) are a subset of interplanetary coronal mass ejections (ICMEs) where a magnetic flux rope is detected. Is the difference between MCs and ICMEs without detected flux rope intrinsic or rather due to an observational bias?…

Solar and Stellar Astrophysics · Physics 2015-06-12 P. Demoulin , S. Dasso , M. Janvier

We present direct evidence that magnetic clouds (MCs) have highly flattened and curved cross section resulting from their interaction with the ambient solar wind. Lower limits on the transverse size are obtained for three MCs observed by…

Space Physics · Physics 2007-05-23 Y. Liu , J. D. Richardson , J. W. Belcher , C. Wang , Q. Hu , J. C. Kasper

The evolution of the magnetic field and plasma quantities inside a coronal mass ejection (CME) with distance are known from statistical studies using data from 1 au monitors, planetary missions, Helios, and Ulysses. This does not cover the…

Solar and Stellar Astrophysics · Physics 2019-11-06 Nada Al-Haddad , Noe Lugaz , Stefaan Poedts , Charles J. Farrugia and , Teresa Nieves-Chinchilla

Magnetic clouds (MCs) are "magnetized plasma clouds" moving in the solar wind. MCs transport magnetic flux and helicity away from the Sun. These structures are not stationary but feature temporal evolution. Commonly, simplified MC models…

Solar and Stellar Astrophysics · Physics 2015-05-20 Giorgi Dalakishvili , Andria Rogava , Giovanni Lapenta , Stefaan Poedts

Solar coronal mass ejections are well known to expand as they propagate through the heliosphere. Despite this, their cross-sections are usually modeled as static plasma columns within the magnetohydrodynamics (MHD) framework. We test the…

Solar and Stellar Astrophysics · Physics 2022-04-20 Debesh Bhattacharjee , Prasad Subramanian , Volker Bothmer , Teresa Nieves-Chinchilla , Angelos Vourlidas

Magnetic clouds (MCs) are formed by flux ropes (FRs) launched from the Sun as part of coronal mass ejections (CMEs). They carry away an important amount of magnetic flux and helicity. The main aim of this study is to quantify these…

Solar and Stellar Astrophysics · Physics 2016-01-20 P. Demoulin , M. Janvier , S. Dasso

Large magnetic structures are launched away from the Sun during solar eruptions. They are observed as (interplanetary) coronal mass ejections (ICMEs or CMEs) with coronal and heliospheric imagers. A fraction of them are observed insitu as…

Solar and Stellar Astrophysics · Physics 2020-07-01 P. Démoulin , S. Dasso , V. Lanabere , M. Janvier , C. Noûs

The solar wind conditions at one astronomical unit (AU) can be strongly disturbed by the interplanetary coronal mass ejections (ICMEs). A subset, called magnetic clouds (MCs), is formed by twisted flux ropes that transport an important…

Astrophysics · Physics 2009-11-13 S. Dasso , M. S. Nakwacki , P. Démoulin , C. H. Mandrini

Magnetic clouds (MCs) are "magnetized plasma clouds" moving in the solar wind. MCs transport magnetic flux and helicity away from the Sun. These structures are not stationary but feature temporal evolution as they propagate in the solar…

Solar and Stellar Astrophysics · Physics 2015-05-30 G. Dalakishvili , J. Kleimann , H. Fichtner , S. Poedts

Magnetic clouds (MCs) are large-scale interplanetary transient structures in the heliosphere that travel from the Sun into the interplanetary medium. The internal magnetic field lines inside the MCs are twisted, forming a flux rope (FR).…

Space Physics · Physics 2020-03-11 V. Lanabere , S. Dasso , P. Démoulin , M. Janvier , L. Rodriguez , J. J. Masías-Meza

The pressure and energy density of the gas and magnetic field inside solar coronal mass ejections (in relation to that in the ambient solar wind) is thought to play an important role in determining their dynamics as they propagate through…

The radial expansion of coronal mass ejections (CMEs) is known to occur from remote observations; from the variation of their properties with radial distance; and from local in situ plasma measurements showing a decreasing speed profile…

Space Physics · Physics 2020-08-26 N. Lugaz , T. M. Salman , R. M. Winslow , N. Al-Haddad , C. J. Farrugia , B. Zhuang , A. B. Galvin

Coronal mass ejections (CMEs) represent the most extreme solar products, showing complex and dynamic structures when detected in situ. They are often preceded by a shock and carry a magnetic cloud organised as a flux rope, surrounded and…

Solar and Stellar Astrophysics · Physics 2025-07-23 Mattia Sangalli , Andrea Verdini , Simone Landi , Emanuele Papini

Magnetic clouds (MCs) are observed insitu by spacecraft. The rotation of their magnetic field is typically interpreted as the crossing of a twisted magnetic flux tube, or flux rope, which was launched from the solar corona. The detailed…

Space Physics · Physics 2022-12-21 V. Lanabere , P. Démoulin , S. Dasso

Magnetic clouds (MCs) are flux-rope magnetic structures forming a subset of solar coronal mass ejections which have significant space weather impacts. The geoeffectiveness of MCs depends on their properties which evolve during their…

Solar and Stellar Astrophysics · Physics 2021-03-11 Sanchita Pal , Soumyaranjan Dash , Dibyendu Nandy
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