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Fast coronal mass ejections (CMEs) generate standing or bow shocks as they propagate through the corona and solar wind. Although CME shocks have previously been detected indirectly via their emission at radio frequencies, direct imaging has…

太阳与恒星天体物理 · 物理学 2015-05-28 Shane A. Maloney , Peter T. Gallagher

Stellar eruptive events, such as flares and coronal mass ejections (CMEs), can affect planetary habitability by disturbing the stability of their atmospheres. For instance, strong stellar flares and CMEs can trigger atmospheric escape and,…

太阳与恒星天体物理 · 物理学 2025-10-03 Nuri Park , Evgenya L. Shkolnik , Joe Llama

Coronal mass ejections (CMEs) are the most geoeffective space weather phenomena, being associated with large geomagnetic storms, having the potential to cause disturbances to telecommunication, satellite network disruptions, power grid…

太阳与恒星天体物理 · 物理学 2022-08-17 Andreea-Clara Pricopi , Alin Razvan Paraschiv , Diana Besliu-Ionescu , Anca-Nicoleta Marginean

Coronal mass ejections (CMEs) are eruptive events that cause a solar-type star to shed mass and magnetic flux. CMEs tend to occur together with flares, radio storms, and bursts of energetic particles. On the Sun, CME-related mass loss is…

太阳与恒星天体物理 · 物理学 2017-05-24 Steven R. Cranmer

The Solar TErrestrial RElations Observatory (STEREO) and its heliospheric imagers (HI) have provided us the possibility to enhance our understanding of the interplanetary propagation of coronal mass ejections (CMEs). HI-based methods are…

太阳与恒星天体物理 · 物理学 2018-11-14 T. Amerstorfer , C. Möstl , P. Hess , M. Temmer , M. L. Mays , M. Reiss , P. Lowrance , Ph. -A. Bourdin

This work studies the kinematics of the leading edge and the core of 6 Coronal Mass Ejections (CMEs) in the combined field of view of Sun Watcher using Active Pixel System detector and Image Processing (SWAP) on-board PRoject for On-Board…

Coronal mass ejections (CMEs) are massive solar eruptions, which have a significant impact on Earth. In this paper, we propose a new method, called DeepCME, to estimate two properties of CMEs, namely, CME mass and kinetic energy. Being able…

太阳与恒星天体物理 · 物理学 2023-12-05 Khalid A. Alobaid , Yasser Abduallah , Jason T. L. Wang , Haimin Wang , Shen Fan , Jialiang Li , Huseyin Cavus , Vasyl Yurchyshyn

The Sun and other solar-type stars have magnetic fields that permeate their interior and surface, extends through the interplanetary medium, and is the main driver of stellar activity. Stellar magnetic activity affects physical processes…

太阳与恒星天体物理 · 物理学 2023-05-15 Fabian Menezes , Adriana Valio , Yuri Netto , Alexandre Araújo , Christina Kay , Merav Opher

We report on the spatial relationship between solar flares and coronal mass ejections (CMEs) observed during 1996-2005 inclusive. We identified 496 flare-CME pairs considering limb flares (distance from central meridian > 45 deg) with soft…

天体物理学 · 物理学 2009-11-13 S. Yashiro , G. Michalek , S. Akiyama , N. Gopalswamy , R. A. Howard

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 a case study (June 6-7, 2008) we report on how the internal structure of a coronal mass ejection (CME) at 1 AU can be anticipated from remote observations of white-light images of the heliosphere. Favorable circumstances are the absence…

We report on a numerical investigation of two coronal mass ejections (CMEs) which interact as they propagate in the inner heliosphere. We focus on the effect of the orientation of the CMEs relative to each other by performing four different…

空间物理 · 物理学 2015-06-17 N. Lugaz , C. J. Farrugia , W. B. Manchester , N. Schwadron

Coronal mass ejections (CMEs), which dynamically connect the solar surface to the far reaches of interplanetary space, represent a major anifestation of solar activity. They are not only of principal interest but also play a pivotal role in…

太阳与恒星天体物理 · 物理学 2015-03-09 Jens Kleimann

Accurately predicting the arrival of coronal mass ejections (CMEs) at the Earth based on remote images is of critical significance in the study of space weather. In this paper, we make a statistical study of 21 Earth directed CMEs,…

太阳与恒星天体物理 · 物理学 2015-05-06 Tong Shi , Yikang Wang , Linfeng Wan , Xin Cheng , Mingde Ding , Jie Zhang

As a follow-up study on Sun-to-Earth propagation of fast coronal mass ejections (CMEs), we examine the Sun-to-Earth characteristics of slow CMEs combining heliospheric imaging and in situ observations. Three events of particular interest,…

太阳与恒星天体物理 · 物理学 2016-03-23 Ying D. Liu , Huidong Hu , Chi Wang , Janet G. Luhmann , John D. Richardson , Zhongwei Yang , Rui Wang

We investigate the Sun-Earth dynamics of a set of 38 well-observed Coronal Mass Ejections(CMEs) using data from the STEREO, SOHO missions and WIND instrument. We seek to quantify the relative contributions of Lorentz force and aerodynamic…

太阳与恒星天体物理 · 物理学 2019-07-31 Nishtha Sachdeva

The statistical study of the Coronal Mass Ejections (CMEs) is a hot topic in solar physics. To further reveal the temporal and spatial behaviors of the CMEs at different latitudes and heights, we analyzed the correlation and phase…

太阳与恒星天体物理 · 物理学 2022-06-22 Jiaqi Lin , Feng Wang , Linhua Deng , Hui Deng , Ying Mei , Yangfan Xie

Coronal mass ejections (CMEs) are the most important drivers of space weather. Central to most CMEs is thought to be the eruption of a bundle of highly twisted magnetic field lines known as magnetic flux ropes. A comprehensive understanding…

Understanding and predicting the structure and evolution of coronal mass ejections (CMEs) in the heliosphere remains one of the most sought-after goals in heliophysics and space weather research. A powerful tool for improving current…

We numerically model the coronal mass ejection (CME) event of October 28, 2003 that erupted from active region 10486 and propagated to Earth in less than 20 hours causing severe geomagnetic storms. The magnetohydrodynamic (MHD) model is…