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The diffuse morphology and transient nature of coronal mass ejections (CMEs) make them difficult to identify and track using traditional image processing techniques. We apply multiscale methods to enhance the visibility of the faint CME…

太阳与恒星天体物理 · 物理学 2009-02-20 Jason P. Byrne , Peter T. Gallagher , R. T. James McAteer , C. Alex Young

Solar coronal mass ejections (CMEs) are large-scale eruptions of plasma and magnetic field from the Sun into the corona and interplanetary space. They are the most significant drivers of adverse space weather at Earth and other locations in…

太阳与恒星天体物理 · 物理学 2012-02-20 Jason P. Byrne

Eruptions of coronal mass ejections (CMEs) from the Sun are usually associated with a number of signatures that can be identified in solar disc imagery. However, there are cases in which a CME that is well observed in coronagraph data is…

Coronal and interplanetary shock waves produced by coronal mass ejections (CMEs) are major drivers of space-weather phenomena, inducing major changes in the heliospheric radiation environment and directly perturbing the near-Earth…

太阳与恒星天体物理 · 物理学 2023-04-12 Manon Jarry , Alexis P. Rouillard , Illya Plotnikov , Athanasios Kouloumvakos , Alexander Warmuth

Coronal mass ejections (CMEs) are large-scale expulsions of plasma and magnetic fields from the Sun into the heliosphere and are the most important driver of space weather. The geo-effectiveness of a CME is primarily determined by its…

太阳与恒星天体物理 · 物理学 2023-10-26 Devojyoti Kansabanik

Studying coronal mass ejections (CMEs) in coronagraph data can be challenging due to their diffuse structure and transient nature, compounded by the variations in their dynamics, morphology, and frequency of occurrence. The large amounts of…

太阳与恒星天体物理 · 物理学 2015-06-15 Jason P. Byrne

Coronal mass ejections (CMEs) are the main drivers of geomagnetic disturbances, but the effects of their interaction with Earth's magnetic field depend on their magnetic configuration and orientation. Fitting and reconstruction techniques…

空间物理 · 物理学 2018-04-09 Nada Al-Haddad , Teresa Nieves-Chinchilla , Neel P. Savani , Noe Lugaz , Ilia I. Roussev

Coronal mass ejections (CMEs) are large eruptions from the Sun that propagate through the heliosphere after launch. Observational studies of these transient phenomena are usually based on 2D images of the Sun, corona, and heliosphere…

Context. We study two coronal mass ejections (CMEs) observed between April 1-2, 2019 by both the inner Wide-Field Imager for Parker Solar Probe (WISPR-I) and the inner heliospheric imager (HI-1) on board STEREO-A. This is the first study of…

太阳与恒星天体物理 · 物理学 2021-06-02 Carlos Roberto Braga , Angelos Vourlidas

The spectra of coronal mass ejections (CMEs) in the low corona play a crucial role in understanding their origins and physical mechanism, and enhancing space weather forecasting. However, capturing these spectra faces significant…

太阳与恒星天体物理 · 物理学 2025-04-01 Lami Chan , Xianyong Bai , Hui Tian , Yufei Feng , Yu Xu , Tibor Török , Yuhang Gao , Tanmoy Samanta , Zheng Sun

Coronal mass ejections (CMEs) are the most dynamic phenomena in our solar system. They abruptly disrupt the continuous outflow of solar wind by expelling huge clouds of magnetized plasma into interplanetary space with velocities enabling to…

太阳与恒星天体物理 · 物理学 2016-12-07 Manuela Temmer

We analyze the detection capability of Coronal Mass Ejections (CMEs) for all currently operating coronagraphs in space. We define as CMEs events that propagate beyond 10 solar radii with morphologies broadly consistent with a magnetic flux…

太阳与恒星天体物理 · 物理学 2020-08-11 Angelos Vourlidas , L. A. Balmaceda , H. Xie , O. C. St. Cyr

The shape and dynamics of coronal mass ejections (CMEs) vary significantly based on the instrument and wavelength used. This has led to significant debate about the proper definitions of CME/shock fronts, pile-up/compression regions, and…

太阳与恒星天体物理 · 物理学 2025-08-27 Oleg Stepanyuk , Kamen Kozarev

Coronal mass ejections (CMEs) are large-scale ejections of magnetized plasma from the Sun and are associated with the most extreme space weather events. The geoeffectiveness of a CME is primarily determined by the southward component of its…

太阳与恒星天体物理 · 物理学 2024-07-09 Devojyoti Kansabanik , Angelos Voulidas

Coronal Mass Ejections (CMEs) influence the interplanetary environment over vast distances in the solar system by injecting huge clouds of fast solar plasma and energetic particles (SEPs). A number of fundamental questions remain about how…

太阳与恒星天体物理 · 物理学 2022-06-01 Oleg Stepanyuk , Kamen Kozarev , Mohamed Nedal

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

Coronal mass ejections (CMEs) are large-scale ejections of plasma and magnetic field from the solar corona, which propagate through interplanetary space at velocities of $\sim$100--2500~km~s$^{-1}$. Although plane-of-sky coronagraph…

太阳与恒星天体物理 · 物理学 2011-06-09 Shane A. Maloney , Peter T. Gallagher

Coronal mass ejections (CMEs) are large-scale eruptions of plasma and magnetic feld that can produce adverse space weather at Earth and other locations in the Heliosphere. Due to the intrinsic multiscale nature of features in coronagraph…

太阳与恒星天体物理 · 物理学 2011-04-25 Peter T. Gallagher , C. Alex Young , Jason P. Byrne , R. T. James McAteer

Understanding the evolution of radial sizes and instantaneous expansion speeds of coronal mass ejections (CMEs) is crucial for assessing their impact duration on Earth's environment. We introduce a non-conventional approach to derive the…

太阳与恒星天体物理 · 物理学 2024-09-30 Anjali Agarwal , Wageesh Mishra

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
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