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We present hydrodynamical simulations of interacting Coronal Mass Ejections in the Interplanetary medium (ICMEs). In these events, two consecutive CMEs are launched from the Sun in similar directions within an interval of time of a few…

太阳与恒星天体物理 · 物理学 2018-01-11 Tatiana Niembro , Alejandro Lara , Ricardo F. González , J. Cantó

We report on the solar and interplanetary (IP) causes of the third largest geomagnetic storm (2018 August 26) in solar cycle 24. The underlying coronal mass ejection (CME) originating from a quiescent filament region becomes a 440 km/s…

太阳与恒星天体物理 · 物理学 2022-09-07 N. Gopalswamy , S. Yashiro , S. Akiyama , H. Xie , P. Mäkelä , M. -C. Fok , C. P. Ferradas

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

Coronal mass ejections (CMEs) cause disturbances in the environment of the Earth when they arrive at the Earth. However, the prediction of the arrival of CMEs still remains a challenge. We have developed an interplanetary scintillation…

太阳与恒星天体物理 · 物理学 2019-04-17 Kazumasa Iwai , Daikou Shiota , Munetoshi Tokumaru , Kenichi Fujiki , Mitsue Den , Yûki Kubo

Interplanetary scintillation (IPS) is a useful tool for detecting coronal mass ejections (CMEs) throughout interplanetary space. Global magnetohydrodynamic (MHD) simulations of the heliosphere, which are usually used to predict the arrival…

太阳与恒星天体物理 · 物理学 2022-09-27 Kazumasa Iwai , Richard A. Fallows , Mario M. Bisi , Daikou Shiota , Bernard V. Jackson , Munetoshi Tokumaru , Ken'ichi Fujiki

We demonstrate how the parameters of a Gibson-Low flux-rope-based coronal mass ejection (CME) can be constrained using remote observations. Our Multi Scale Fluid-Kinetic Simulation Suite (MS-FLUKSS) has been used to simulate the propagation…

太阳与恒星天体物理 · 物理学 2019-04-24 Talwinder Singh , Mehmet Sarp Yalim , Nikolai Pogorelov , Nat Gopalswamy

Investigating the heliospheric evolution and consequences of Coronal mass ejections (CMEs) is critical to understanding the solar-terrestrial relationship. For the first time, Heliospheric Imagers (HIs) onboard STEREO, providing multiple…

太阳与恒星天体物理 · 物理学 2022-04-22 Wageesh Mishra

Variations of the magnetic field within solar coronal mass ejections (CMEs) in the heliosphere depend on the CME`s magnetic structure as it leaves the solar corona and its subsequent evolution through interplanetary space. To account for…

太阳与恒星天体物理 · 物理学 2024-05-24 E. Provornikova , V. G. Merkin , A. Vourlidas , A. Malanushenko , S. E. Gibson , E. Winter , N. Arge

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…

空间物理 · 物理学 2022-04-27 Vladimir Slemzin , Farid Goryaev , Denis Rodkin

Coronal Mass Ejections (CMEs) correspond to dramatic expulsions of plasma and magnetic field from the solar corona into the heliosphere. CMEs are scientifically relevant because they are involved in the physical mechanisms characterizing…

We present an investigation of the rotation and non-radial motion of a coronal mass ejection (CME) from AR 12468 on 2015 December 16 using observations from SDO, SOHO, STEREO A and Wind. The EUV and HMI observations of the source region…

太阳与恒星天体物理 · 物理学 2018-02-28 Yi A. Liu , Ying D. Liu , Huidong Hu , Rui Wang , Xiaowei Zhao

Solar energetic particles (SEPs) accelerated from shocks driven by coronal mass ejections (CMEs) are one of the major causes of geomagnetic storms on Earth. Therefore, it is necessary to predict the occurrence and intensity of such…

太阳与恒星天体物理 · 物理学 2021-02-26 Anitha Ravishankar , Grzegorz Michalek

In this article, we compare the properties of two coronal mass ejections (CMEs) that show similar source region characteristics but different evolutionary behavior in the later phases. We discuss the two events in terms of their near-Sun…

太阳与恒星天体物理 · 物理学 2022-01-19 Syed Ibrahim , Wahab Uddin , Bhuwan Joshi , Ramesh Chandra , Arun Kumar Awasthi

We present a new approach to combine remote observations and in situ data by STEREO/HI and Wind, respectively, to derive the kinematics and propagation directions of interplanetary coronal mass ejections (ICMEs). We used two methods,…

太阳与恒星天体物理 · 物理学 2012-02-07 T. Rollett , C. Möstl , M. Temmer , A. M. Veronig , C. J. Farrugia , H. K. Biernat

The so-called drag-based model (DBM) simulates analytically the propagation of coronal mass ejections (CMEs) in interplanetary space and allows the prediction of their arrival times and impact speeds at any point in the heliosphere…

太阳与恒星天体物理 · 物理学 2015-06-30 T. Žic , B. Vršnak , M. Temmer

Solar Coronal mass ejections (CMEs) are large-scale ejections of plasma and magnetic field from the corona, which propagate through interplanetary space. CMEs are the most significant drivers of adverse space weather on Earth, but the…

太阳与恒星天体物理 · 物理学 2012-10-22 Shane Maloney

In the past decade, significant efforts have been made in developing physics-based solar wind and coronal mass ejection (CME) models, which have been or are being transferred to national centers (e.g., SWPC, CCMC) to enable space weather…

太阳与恒星天体物理 · 物理学 2022-04-06 Meng Jin , Nariaki V. Nitta , Christina M. S. Cohen

In order to have a comprehensive view of the propagation and evolution of coronal mass ejections (CMEs) from the Sun to deep interplanetary space beyond 1 au, we carry out a kinematic analysis of 7 CMEs in solar cycle 23. The events are…

太阳与恒星天体物理 · 物理学 2019-09-25 Xiaowei Zhao , Ying D. Liu , Huidong Hu , Rui Wang

This study quantifies how uncertainty in physically meaningful coronal mass ejection (CME) and solar-wind inputs propagates into forecast-relevant diagnostics from eruption to 1 AU. We use a semi-analytic erupting flux rope (EFR) model to…

太阳与恒星天体物理 · 物理学 2026-05-07 S. Stamkos , S. Patsourakos , A. Vourlidas , E. Paouris

Forecasting the in situ properties of coronal mass ejections (CMEs) from remote images is expected to strongly enhance predictions of space weather, and is of general interest for studying the interaction of CMEs with planetary…