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Recent discoveries have revealed exoplanets orbiting young Sun-like stars, offering a window into the early solar system. These young stars frequently produce extreme magnetic explosions known as superflares, roughly once a day, potentially…

太阳与恒星天体物理 · 物理学 2025-10-28 Kosuke Namekata

Solar flares are often accompanied by filament/prominence eruptions ($\sim10^{4}$ K and $\sim 10^{10-11}$ cm$^{-3}$), sometimes leading to coronal mass ejections (CMEs) that directly affect the Earth's environment. `Superflares' are found…

Solar flares are often accompanied by filament/prominence eruptions, sometimes leading to coronal mass ejections (CMEs). By analogy, we expect that stellar flares are also associated with stellar CMEs whose properties are essential to know…

太阳与恒星天体物理 · 物理学 2022-11-11 Kosuke Namekata , Hiroyuki Maehara , Satoshi Honda , Yuta Notsu , Daisaku Nogami , Kazunari Shibata

Solar eruptions, known as Coronal Mass Ejections (CMEs), are frequently observed on our Sun. Recent Kepler observations of superflares on G-type stars have implied that so called super-CMEs, possessing kinetic energies 10 times of the most…

太阳与恒星天体物理 · 物理学 2014-10-29 Vladimir S. Airapetian , Alex Glocer , William Danchi

Solar eruptions generally refer to coronal mass ejections (CMEs) and flares. Both are important sources of space weather. Solar flares cause sudden change in the ionization level in the ionosphere. CMEs cause solar energetic particle (SEP)…

太阳与恒星天体物理 · 物理学 2017-09-12 Nat Gopalswamy

The magnetic field of the Sun drives a wide range of eruptive phenomena, from small-scale nanoflares to large flares and coronal mass ejections (CMEs). While direct observations of solar activity cover only the past few decades, indirect…

太阳与恒星天体物理 · 物理学 2026-02-12 Valeriy Vasilyev , Natalie Krivova , Ilya Usoskin

Coronal mass ejections (CMEs) on the early Sun may have profoundly influenced the planetary atmospheres of early Solar System planets. Flaring young solar analogues serve as excellent proxies for probing the plasma environment of the young…

We propose a new model for the initiation of a solar coronal mass ejection (CME). The model agrees with two properties of CMEs and eruptive flares that have proved to be very difficult to explain with previous models. a) Very low-lying…

天体物理学 · 物理学 2009-10-30 S. K. Antiochos , C. R. DeVore , J. A. Klimchuk

Coronal mass ejections (CMEs) were discovered in the early 1970s when space-borne coronagraphs revealed that eruptions of plasma are ejected from the Sun. Today, it is known that the Sun produces eruptive flares, filament eruptions, coronal…

太阳与恒星天体物理 · 物理学 2018-03-14 Lucie Green , Tibor Torok , Bojan Vrsnak , Ward Manchester , Astrid Veronig

Solar flares and coronal mass ejections (CMEs) are the most powerful explosions in the Sun. They are major sources of potentially destructive space weather conditions. However, the possible causes of their initiation remain controversial.…

太阳与恒星天体物理 · 物理学 2017-08-16 X. L. Yan , C. W. Jiang , Z. K. Xue , J. C. Wang , E. R. Priest , L. H. Yang , D. F. Kong , W. D. Cao , H. S. Ji

Recent detection of superflares on solar-type stars by Kepler mission raised a possibility that they can be associated with energetic coronal mass ejections (CMEs) and energetic particle events (SEPs). These space weather events can impact…

太阳与恒星天体物理 · 物理学 2019-06-26 Shuai Fu , Yong Jiang , Vladimir Airapetian , Junxiang Hu , Gang Li , Gary Zank

We report the results of the first state-of-the-art numerical simulations of Coronal Mass Ejections (CMEs) taking place in realistic magnetic field configurations of moderately active M-dwarf stars. Our analysis indicates that a clear,…

Energetic flares and associated coronal mass ejections (CMEs) from young magnetically active solar-like stars can play a critical role in setting conditions for atmospheric escape as well aspenetration of accelerated particles into their…

太阳与恒星天体物理 · 物理学 2020-01-08 Christina Kay , Vladimir S. Airapetian , Theresa Lüftinger , Oleg Kochukhov

Stellar coronal mass ejections (CMEs) may play an important role in mass- and angular momentum loss of young Sun-like stars. If occurring frequently, they may also have a strong effect on planetary evolution by increasing atmospheric…

太阳与恒星天体物理 · 物理学 2017-09-21 P. Odert , M. Leitzinger , A. Hanslmeier , H. Lammer

Flares, sometimes accompanied by coronal mass ejections (CMEs), are the result of sudden changes in the magnetic field of stars with high energy release through magnetic reconnection, which can be observed across a wide range of the…

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 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 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

Young solar-type stars frequently produce superflares, serving as a unique window into the young Sun-Earth environments. Large solar flares are closely linked to coronal mass ejections (CMEs) associated with filament/prominence eruptions,…

The physical processes, which drive powerful solar eruptions, play an important role in our understanding of the Sun-Earth connection. In this Special Issue, we firstly discuss how magnetic fields emerge from the solar interior to the solar…

太阳与恒星天体物理 · 物理学 2019-06-12 Vasilis Archontis , Loukas Vlahos
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