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Interplanetary Coronal Mass Ejections (ICMEs) originate from the eruption of complex magnetic structures occurring in our star's atmosphere. Determining the general properties of ICMEs and the physical processes at the heart of their…

Solar and Stellar Astrophysics · Physics 2023-02-01 F. Regnault , A. Strugarek , M. Janvier , F. Auchère , N. Lugaz , N. Al-Haddad

We have studied three Interplanetary Coronal Mass Ejections (ICMEs) having clear signatures of magnetic cloud (MC) arrival at 1 AU and their associated solar sources during 2011 to 2013. Comparing the axial magnetic field strength (B0) of…

Solar and Stellar Astrophysics · Physics 2019-01-30 Ranadeep Sarkar , Nandita Srivastava

We performed magnetohydrodynamic simulation of a formation process of coronal mass ejections (CMEs), focusing on interaction (reconnection) between an ejecting flux rope and its ambient field. We examined three cases with different ambient…

Solar and Stellar Astrophysics · Physics 2015-05-19 Daikou Shiota , Kanya Kusano , Takahiro Miyoshi , Kazunari Shibata

In-situ measurements carried out by spacecraft in radial alignment are critical to advance our knowledge on the evolutionary behavior of coronal mass ejections (CMEs) and their magnetic structures during propagation through interplanetary…

Solar and Stellar Astrophysics · Physics 2021-08-11 Camilla Scolini , Reka M. Winslow , Noé Lugaz , Stefaan Poedts

We present multi-point in situ observations of a complex sequence of coronal mass ejections (CMEs) which may serve as a benchmark event for numerical and empirical space weather prediction models. On 2010 August 1, instruments on various…

We investigate the effects of the evolutionary processes in the internal magnetic structure of two interplanetary coronal mass ejections (ICMEs) detected in situ between 2020 November 29 and December 1 by Parker Solar Probe (PSP). The…

We investigated a set of 54 interplanetary coronal mass ejection (ICME) events whose solar sources are very close to the disk center (within 15 degrees from the central meridian). The ICMEs consisted of 23 magnetic cloud (MC) events and 31…

Solar and Stellar Astrophysics · Physics 2015-06-12 N. Gopalswamy , P. MÄkelÄ , S. Akiyama , H. Xie , S. Yashiro , A. A. Reinard

Interplanetary coronal mass ejections (ICMEs) often consist of a shock wave, sheath region, and ejecta region. The ejecta regions are divided into two broad classes: magnetic clouds (MC) that exhibit the characteristics of magnetic flux…

Solar and Stellar Astrophysics · Physics 2020-09-30 Hongqiang Song , Jie Zhang , Xin Cheng , Gang Li , Qiang Hu , Leping Li , Shujun Chen , Ruisheng Zheng , Yao Chen

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…

Solar and Stellar Astrophysics · Physics 2026-04-03 Akanksha Dagore , Giuseppe Prete , Vincenzo Capparelli , Vincenzo Carbone , Fabio Lepreti

Interplanetary coronal mass ejections (ICMEs) are a significant feature of the heliospheric environment and the primary cause of adverse space weather at the Earth. ICME propagation, and the evolution of ICME magnetic field structure during…

Space Physics · Physics 2019-05-20 S. W. Good , E. K. J. Kilpua , A. T. LaMoury , R. J. Forsyth , J. P. Eastwood , C. Möstl

We report on an observationally constrained analytical model, the INterplanetary Flux ROpe Simulator (INFROS), for predicting the magnetic-field vectors of coronal mass ejections (CMEs) in the interplanetary medium. The main architecture of…

Solar and Stellar Astrophysics · Physics 2020-01-29 Ranadeep Sarkar , Nat Gopalswamy , Nandita Srivastava

Interplanetary coronal mass ejections (ICMEs) have complex magnetic and density structures, which is the result of their interaction with the structured solar wind and with previous eruptions. ICMEs are revealed by in situ measurements and…

Solar and Stellar Astrophysics · Physics 2011-06-06 N. Lugaz , I. I. Roussev

A comprehensive analysis of plasma and composition characteristics inside magnetic clouds (MCs) observed by the Advanced Composition Explorer (ACE) spacecraft from 1998 February to 2011 August is presented. The results show that MCs have…

Solar and Stellar Astrophysics · Physics 2020-05-06 Jin Huang , Yu Liu , Hengqiang Feng , Ake Zhao , Z. Z. Abidin , Yuandeng Shen , Oloketuyi Jacob

Coronal mass ejections (CMEs) are the eruptions of magnetised plasma from the Sun and are considered the main driver of adverse space weather events. Hence, undrstanding its formation process, particularly the magnetic topology, is critical…

Solar and Stellar Astrophysics · Physics 2025-02-26 Jinhan Guo , Y. W. Ni , B. Schmieder , Y. Guo , C. Xia , P. Devi , R. Chandra , S. Poedts , R. Joshi , Y. H. Zhou , H. T. Li , P. F. Chen

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…

Solar and Stellar Astrophysics · Physics 2018-05-30 Mingzhe Liu , Ying D. Liu , Zhongwei Yang , L. B. Wilson , Huidong Hu

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

Interplanetary coronal mass ejections (ICMEs) are the interplanetary manifestations of solar eruptions. The overtaken solar wind forms a sheath of compressed plasma at the front of ICMEs. Magnetic clouds (MCs) are a subset of ICMEs with…

Solar and Stellar Astrophysics · Physics 2016-08-10 J. J. Masías-Meza , S. Dasso , P. Démoulin , L. Rodriguez , M. Janvier

The state of the space environment plays a significant role for forecasting of geomagnetic storms produced by disturbances of the solar wind (SW). Coronal mass ejections (CMEs) passing through the heliosphere often have a prolonged (up to…

Space Physics · Physics 2022-04-27 Vladimir Slemzin , Farid Goryaev , Denis Rodkin

Interplanetary coronal mass ejections (ICMEs) are magnetic structures propagating from the Sun's corona to the interplanetary medium. With over 20 years of observations at the L1 libration point, ACE offers hundreds of ICMEs detected at…

Solar and Stellar Astrophysics · Physics 2020-11-11 F. Regnault , M. Janvier , P. Démoulin , F. Auchère , A. Strugarek , S. Dasso , C. Noûs

Coronal mass ejections (CMEs) observed near the Sun via LASCO coronographic imaging are the most important solar drivers of geomagnetic storms. ICMEs, their interplanetary, near-Earth counterparts, can be detected in-situ, for example, by…

Astrophysics · Physics 2008-11-26 V. Yurchyshyn , Q. Hu , R. P. Lepping , B. J. Lynch , J. Krall